/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --ink:#163A34;
  --ink-deep:#0D1C19;
  --mist:#7FA79B;
  --sand:#D97742;
  --sand-light:#E0824C;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --tint:#EEF3F1;
  --text:#1B2421;
  --text-2:#5C6B66;
  --text-3:#8A9691;
  --inv:#F4F7F5;
  --line:#DDE3DE;
  --line-dark:rgba(255,255,255,.14);
  --ok:#2F7D5C;
  --warn:#B7791F;
  --err:#B3423A;
  --info:#3B6E8F;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,28,25,.06);
  --sh-2:0 10px 30px rgba(13,28,25,.08);
  --sh-3:0 18px 44px rgba(13,28,25,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1240px;
  --h-font:"Noto Serif SC","Songti SC",Georgia,serif;
  --b-font:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,sans-serif;
}
/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:150px}
body{
  margin:0;font-family:var(--b-font);font-size:17px;line-height:1.8;
  color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--h-font);line-height:1.22;font-weight:700;letter-spacing:.01em;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(217,119,66,.22)}
:focus-visible{outline:2px solid var(--mist);outline-offset:2px}
/* ============ 通用布局 ============ */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.section{padding:104px 0}
.section--tight{padding:80px 0}
.section--dark{background:var(--ink-deep);color:var(--inv)}
.section--tint{background:var(--tint)}
.section-head{max-width:780px;margin-bottom:52px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;
  letter-spacing:.18em;color:var(--sand);margin-bottom:16px;font-family:var(--b-font);
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--sand)}
.section-head h2{font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:16px}
.section-head p{color:var(--text-2);font-size:16.5px;line-height:1.9}
.section--dark .section-head h2{color:#fff}
.section--dark .section-head p{color:rgba(244,247,245,.72)}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-pill);
  border:1px solid transparent;font-size:16px;font-weight:500;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease),color .25s var(--ease);
}
.btn--primary{background:var(--sand);color:#fff;box-shadow:0 12px 28px rgba(217,119,66,.28)}
.btn--primary:hover{background:var(--sand-light);transform:translateY(-2px);box-shadow:0 18px 38px rgba(217,119,66,.36)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 8px 18px rgba(217,119,66,.28)}
.btn--ghost{background:transparent;border-color:rgba(244,247,245,.5);color:#fff}
.btn--ghost:hover{background:rgba(244,247,245,.12);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--outline{background:transparent;border-color:var(--mist);color:var(--ink)}
.btn--outline:hover{background:rgba(127,167,155,.14);transform:translateY(-2px)}
.btn--outline:active{transform:translateY(1px)}
.btn--block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--ink);transition:color .25s var(--ease),gap .25s var(--ease);
}
.link-arrow:hover{color:var(--sand);gap:11px}
.section--dark .link-arrow{color:var(--inv)}
.section--dark .link-arrow:hover{color:var(--sand)}
/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(13,28,25,.28);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background-color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  background:#0D1C19;border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 12px 32px rgba(13,28,25,.28);
}
.nav{display:flex;align-items:center;gap:26px;height:76px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:42px;height:42px;border-radius:13px;flex-shrink:0;
  background:linear-gradient(135deg,#D97742 0%,#163A34 100%);
  display:grid;place-items:center;color:#fff;font-family:var(--h-font);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 8px 20px rgba(13,28,25,.35);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text strong{font-family:var(--h-font);font-size:17px;color:#fff;letter-spacing:.02em}
.logo-text em{font-style:normal;font-size:11.5px;letter-spacing:.14em;color:rgba(244,247,245,.62)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{
  position:relative;padding:9px 13px;border-radius:var(--r-sm);
  font-size:15.5px;color:rgba(244,247,245,.84);white-space:nowrap;
  transition:color .22s var(--ease),background-color .22s var(--ease);
}
.nav-menu a:hover{color:#fff;background:rgba(244,247,245,.08)}
.nav-menu a.active{color:#fff}
.nav-menu a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--sand);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.26);background:transparent;color:#fff;
  cursor:pointer;transition:background-color .22s var(--ease),border-color .22s var(--ease);
}
.nav-search:hover{background:rgba(244,247,245,.14);border-color:rgba(244,247,245,.5)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.26);
  background:transparent;cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;margin:3px auto;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
/* ============ 首屏 ============ */
.hero{
  position:relative;min-height:92vh;display:flex;align-items:center;
  padding:150px 0 96px;background:var(--ink-deep);overflow:hidden;
}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;transform:scale(1.03)}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(104deg,rgba(13,28,25,.94) 0%,rgba(13,28,25,.80) 44%,rgba(13,28,25,.42) 100%),
    radial-gradient(120% 90% at 8% 100%,rgba(22,58,52,.86) 0%,rgba(13,28,25,0) 62%);
}
.hero-inner{
  position:relative;z-index:2;display:grid;gap:56px;align-items:center;
  grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(217,119,66,.16);border:1px solid rgba(217,119,66,.42);
  color:#F3C6A6;font-size:13.5px;margin-bottom:24px;letter-spacing:.02em;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--sand);display:block}
.hero h1{
  font-size:clamp(2.1rem,4.4vw,3.6rem);color:#fff;line-height:1.24;
  margin-bottom:22px;letter-spacing:.005em;
}
.hero h1 .hl{
  color:var(--sand);position:relative;white-space:nowrap;
}
.hero-sub{
  font-size:17.5px;line-height:1.9;color:rgba(244,247,245,.8);
  max-width:600px;margin-bottom:34px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.hero-badges span{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);
  font-size:14px;color:rgba(244,247,245,.82);
}
.hero-badges span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mist)}
.hero-visual{position:relative}
.hero-shot{
  border-radius:22px;overflow:hidden;border:1px solid rgba(255,255,255,.18);
  box-shadow:0 34px 70px rgba(0,0,0,.42);aspect-ratio:16/11;background:#163A34;
}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.hero-chip{
  position:absolute;left:-16px;bottom:-18px;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 20px;border-radius:var(--r-md);background:#fff;color:var(--ink);
  font-size:14px;font-weight:600;box-shadow:var(--sh-3);
}
.hero-chip i{width:9px;height:9px;border-radius:50%;background:var(--ok);display:block;box-shadow:0 0 0 4px rgba(47,125,92,.16)}
.hero-scroll{
  position:absolute;left:50%;bottom:30px;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.2em;color:rgba(244,247,245,.55);
}
.hero-scroll i{
  width:1px;height:38px;background:linear-gradient(180deg,rgba(244,247,245,.7),rgba(244,247,245,0));
  animation:scrollLine 2.2s var(--ease) infinite;
}
@keyframes scrollLine{0%{opacity:.2;transform:scaleY(.4)}50%{opacity:1;transform:scaleY(1)}100%{opacity:.2;transform:scaleY(.4)}}
/* ============ 锚点条 ============ */
.anchor-bar{
  position:sticky;top:76px;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.anchor-bar ul{display:flex;gap:6px;padding:11px 0;overflow-x:auto;scrollbar-width:none}
.anchor-bar ul::-webkit-scrollbar{display:none}
.anchor-bar a{
  display:inline-block;padding:8px 16px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.anchor-bar a:hover{background:var(--tint);color:var(--ink)}
.anchor-bar a.is-current{background:rgba(217,119,66,.12);color:var(--sand);font-weight:600}
/* ============ 卖点区 ============ */
#sell{background:var(--bg)}
.sell-row{
  display:grid;gap:48px;align-items:center;
  padding:52px 0;border-top:1px dashed var(--line);
}
.sell-row:first-of-type{border-top:0;padding-top:0}
.sell-num{
  font-family:var(--h-font);font-size:38px;line-height:1;color:var(--mist);
  letter-spacing:.02em;margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.sell-body h3{font-size:1.45rem;margin-bottom:14px}
.sell-body p{color:var(--text-2);margin-bottom:20px;font-size:16.5px}
.media-frame{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);
  aspect-ratio:4/3;background:var(--tint);
}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.media-frame:hover img{transform:scale(1.035)}
@media(min-width:992px){
  .sell-row{grid-template-columns:1.15fr .85fr}
  .sell-row--flip{grid-template-columns:.85fr 1.15fr}
  .sell-row--flip .sell-media{order:-1}
}
/* ============ 演示区 ============ */
#demo{background:var(--tint)}
.demo-grid{display:grid;gap:52px;align-items:start}
@media(min-width:992px){.demo-grid{grid-template-columns:minmax(0,1fr) minmax(0,.92fr)}}
.steps-v{display:grid;gap:16px}
.step-v{
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;
  padding:24px 26px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.step-v:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(127,167,155,.6)}
.step-v-num{
  width:56px;height:56px;border-radius:16px;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-family:var(--h-font);font-size:19px;
  font-variant-numeric:tabular-nums;
}
.step-v h3{font-size:1.18rem;margin-bottom:8px}
.step-v p{font-size:15.5px;color:var(--text-2)}
.demo-sticky{position:sticky;top:130px}
.demo-sticky .media-frame{aspect-ratio:16/12}
.demo-note{
  margin-top:20px;padding:20px 24px;border-radius:var(--r-md);
  background:rgba(255,255,255,.72);border:1px solid var(--line);
  font-size:15px;color:var(--text-2);
}
.demo-note strong{color:var(--ink)}
/* ============ 证据区 ============ */
#proof{background:var(--ink-deep);color:var(--inv)}
.stats{
  display:grid;gap:1px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);overflow:hidden;
}
@media(min-width:768px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{background:#0D1C19;padding:36px 28px}
.stat b{
  display:block;font-family:var(--h-font);font-size:clamp(2rem,4vw,2.75rem);
  line-height:1;color:#fff;font-variant-numeric:tabular-nums;
}
.stat b em{font-style:normal;font-size:.5em;color:var(--sand);margin-left:6px}
.stat span{display:block;margin-top:12px;font-size:14px;color:rgba(244,247,245,.66);line-height:1.7}
.badges-wall{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}
.badges-wall span{
  padding:10px 20px;border:1px solid rgba(255,255,255,.18);border-radius:var(--r-pill);
  font-size:14px;color:rgba(244,247,245,.82);
  transition:border-color .25s var(--ease),color .25s var(--ease),background-color .25s var(--ease);
}
.badges-wall span:hover{border-color:var(--sand);color:#fff;background:rgba(217,119,66,.12)}
.quote{
  margin-top:48px;padding:34px 36px;border-radius:var(--r-md);
  background:rgba(255,255,255,.05);border-left:3px solid var(--sand);
  font-size:17px;line-height:1.95;color:rgba(244,247,245,.9);
}
.quote footer{margin-top:18px;font-size:14px;color:rgba(244,247,245,.58)}
/* ============ 方案区 ============ */
#price{background:var(--bg)}
.plans{display:grid;gap:20px}
.plan{
  display:grid;gap:26px;align-items:center;
  padding:30px 34px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.plan:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.plan--hot{
  border-color:rgba(217,119,66,.5);
  box-shadow:0 16px 46px rgba(217,119,66,.14);
  background:linear-gradient(180deg,#FFFFFF 0%,#FDF6F1 100%);
}
.plan-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px}
.plan-head h3{font-size:1.3rem}
.tag-hot{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(217,119,66,.14);color:var(--sand);font-size:12.5px;font-weight:700;
}
.plan-desc{font-size:15.5px;color:var(--text-2)}
.plan-list{display:grid;gap:10px}
.plan-list li{position:relative;padding-left:24px;font-size:15.5px;color:var(--text-2)}
.plan-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:12px;height:2px;border-radius:2px;background:var(--mist);
}
.plan-price{text-align:left}
.plan-price b{
  display:block;font-family:var(--h-font);font-size:2rem;color:var(--ink);
  line-height:1.1;font-variant-numeric:tabular-nums;
}
.plan-price span{display:block;font-size:13.5px;color:var(--text-3);margin:8px 0 18px}
@media(min-width:992px){
  .plan{grid-template-columns:minmax(0,1fr) minmax(0,1.3fr) 220px;gap:38px}
  .plan-price{text-align:right}
}
/* ============ 内容列表 ============ */
#news{background:var(--tint)}
.news-feature{
  display:grid;gap:0;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.news-feature:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.news-feature-media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--tint)}
.news-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.news-feature:hover .news-feature-media img{transform:scale(1.04)}
.news-feature-body{padding:30px 32px 32px;display:flex;flex-direction:column}
.news-feature-body h3{font-size:1.5rem;line-height:1.45;margin:14px 0 14px}
.news-feature-body h3 a{transition:color .25s var(--ease)}
.news-feature-body h3 a:hover{color:var(--sand)}
.news-feature-body p{color:var(--text-2);font-size:16px;margin-bottom:22px}
.news-feature-meta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;border-top:1px solid var(--line);padding-top:18px;font-size:13.5px;color:var(--text-3);
}
@media(min-width:992px){
  .news-feature{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);align-items:stretch}
  .news-feature-media{aspect-ratio:auto;height:100%;min-height:330px}
}
.post-grid{display:grid;gap:26px;margin-top:28px}
@media(min-width:640px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:992px){.post-grid{grid-template-columns:repeat(3,1fr)}}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:rgba(127,167,155,.5)}
.card-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--tint)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.card:hover .card-thumb img{transform:scale(1.06)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-tag{
  align-self:flex-start;font-size:12.5px;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--tint);color:var(--ink);margin-bottom:14px;letter-spacing:.02em;
}
.card h3{
  font-size:1.08rem;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .25s var(--ease);
}
.card:hover h3{color:var(--sand)}
.card h3 a{display:block}
.card p{
  font-size:14.5px;color:var(--text-2);flex:1;margin-bottom:18px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);padding-top:14px;font-size:13px;color:var(--text-3);
}
.empty-state{
  margin-top:28px;padding:56px 24px;border-radius:var(--r-md);
  background:rgba(255,255,255,.7);border:1px dashed var(--line);
  text-align:center;color:var(--text-2);font-size:15.5px;
}
.empty-state b{display:block;font-family:var(--h-font);font-size:18px;color:var(--ink);margin-bottom:8px}
/* ============ 分类入口 ============ */
#topics{background:var(--bg)}
.topic-list{display:grid;gap:16px}
.topic-item{
  display:grid;gap:18px;align-items:center;padding:26px 30px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.topic-item:hover{transform:translateX(4px);box-shadow:var(--sh-2);border-color:rgba(217,119,66,.45)}
.topic-ico{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:var(--tint);color:var(--ink);font-family:var(--h-font);font-size:17px;flex-shrink:0;
}
.topic-item h3{font-size:1.12rem;margin-bottom:6px}
.topic-item p{font-size:14.8px;color:var(--text-2)}
@media(min-width:768px){
  .topic-item{grid-template-columns:52px minmax(0,1fr) auto;gap:24px}
}
/* ============ 常见问题 ============ */
#faq{background:var(--tint)}
.faq-list{max-width:920px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item.is-open{border-color:rgba(127,167,155,.7);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 24px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;font-family:var(--b-font);color:var(--ink);
  transition:color .25s var(--ease);
}
.faq-q:hover{color:var(--sand)}
.faq-chev{width:22px;height:22px;flex:0 0 22px;color:var(--mist);transition:transform .28s var(--ease)}
.faq-item.is-open .faq-chev{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{padding:0 24px 24px;font-size:15.5px;color:var(--text-2);line-height:1.9}
.faq-item.is-open .faq-a{background:var(--tint)}
/* ============ 联系区 ============ */
#contact{background:var(--bg)}
.contact-grid{display:grid;gap:44px;align-items:start}
@media(min-width:992px){.contact-grid{grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr)}}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:1.4rem;margin-bottom:10px}
.form-card>p{font-size:15px;color:var(--text-2);margin-bottom:26px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:10px;
  background:#fff;font-size:15px;line-height:1.6;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{min-height:128px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--mist);box-shadow:0 0 0 3px rgba(127,167,155,.18);
}
.field .err{display:none;margin-top:6px;font-size:13px;color:var(--err)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err)}
.field.has-error .err{display:block}
.form-note{font-size:13px;color:var(--text-3);margin-top:14px;line-height:1.8}
.form-feedback{
  display:none;margin-top:18px;padding:15px 18px;border-radius:var(--r-sm);
  background:rgba(47,125,92,.1);border:1px solid rgba(47,125,92,.32);
  color:var(--ok);font-size:14.5px;
}
.form-feedback.is-show{display:block}
.contact-side{display:grid;gap:18px}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 28px;box-shadow:var(--sh-1);
}
.info-card h4{font-size:1.05rem;margin-bottom:8px}
.info-card p{font-size:15px;color:var(--text-2)}
.info-card b{display:block;font-family:var(--h-font);font-size:1.35rem;color:var(--ink);margin-bottom:6px}
.service-list{display:grid;gap:12px}
.service-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);
}
.service-list li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--sand);
  margin-top:.62em;flex-shrink:0;
}
/* ============ 内联 CTA ============ */
.cta-strip{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:34px 40px;border-radius:var(--r-lg);
  background:linear-gradient(118deg,#163A34 0%,#0D1C19 100%);
  color:#fff;margin:64px 0 0;box-shadow:var(--sh-2);
}
.cta-strip h3{font-size:1.28rem;color:#fff;margin-bottom:8px}
.cta-strip p{font-size:15px;color:rgba(244,247,245,.72)}
/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(244,247,245,.76);padding:76px 0 0;margin-top:0}
.footer-grid{display:grid;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .logo-mark{width:40px;height:40px;border-radius:12px}
.footer-brand strong{font-family:var(--h-font);font-size:17px;color:#fff;display:block}
.footer-brand em{font-style:normal;display:block;font-size:11.5px;letter-spacing:.12em;color:rgba(244,247,245,.55)}
.footer-desc{font-size:14.5px;line-height:1.9;color:rgba(244,247,245,.64);max-width:340px}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:18px;font-family:var(--h-font)}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14.5px;color:rgba(244,247,245,.72);transition:color .22s var(--ease),padding-left .22s var(--ease)}
.footer-links a:hover{color:var(--sand);padding-left:4px}
.footer-contact{display:grid;gap:10px;font-size:14.5px;color:rgba(244,247,245,.72)}
.footer-contact span{color:rgba(244,247,245,.5);font-size:13px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:rgba(244,247,245,.5);
}
.footer-bottom a{color:rgba(244,247,245,.62);transition:color .22s var(--ease)}
.footer-bottom a:hover{color:var(--sand)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.18);color:rgba(244,247,245,.8);font-size:13.5px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.to-top:hover{border-color:var(--sand);color:#fff}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:992px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:90;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:var(--r-pill);
  background:var(--sand);color:#fff;font-size:15.5px;font-weight:600;
  box-shadow:0 18px 40px rgba(217,119,66,.36);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease),background-color .25s var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none}
.float-cta:hover{background:var(--sand-light)}
/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s var(--ease),transform .52s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}
/* ============ 响应式 ============ */
@media(max-width:1200px){
  .container{padding:0 26px}
  .section{padding:90px 0}
}
@media(max-width:991px){
  .nav-menu{
    position:fixed;top:76px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#0D1C19;padding:20px 22px 40px;margin:0;
    transform:translateY(-14px);opacity:0;visibility:hidden;overflow-y:auto;
    transition:transform .28s var(--ease),opacity .28s var(--ease),visibility .28s var(--ease);
  }
  .nav-menu.is-open{transform:none;opacity:1;visibility:visible}
  .nav-menu a{padding:16px 6px;font-size:17px;border-radius:0;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-menu a.active::after{display:none}
  .nav-menu a.active{color:var(--sand)}
  .nav-search{display:none}
  .nav-toggle{display:grid}
  .nav{gap:16px}
  .hero{min-height:auto;padding:132px 0 84px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero h1{font-size:clamp(2rem,6.4vw,2.7rem)}
  .hero-visual{max-width:560px}
  .hero-scroll{display:none}
  .anchor-bar{top:76px}
  .section{padding:76px 0}
  .demo-sticky{position:static}
  .cta-strip{padding:28px 26px}
}
@media(max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:60px 0}
  .section-head{margin-bottom:36px}
  .logo-text strong{font-size:15.5px}
  .logo-text em{font-size:10.5px;letter-spacing:.1em}
  .logo-mark{width:38px;height:38px;border-radius:11px}
  .hero{padding:120px 0 64px}
  .hero-sub{font-size:16px}
  .hero-cta .btn{flex:1 1 100%}
  .float-cta{
    right:14px;left:14px;bottom:14px;justify-content:center;
    border-radius:14px;padding:15px 20px;
  }
  .plan{padding:26px 24px}
  .plan-price{text-align:left}
  .form-card{padding:26px 22px}
  .cta-strip{padding:26px 22px;margin-top:44px}
  .quote{padding:26px 24px;font-size:16px}
  .news-feature-body{padding:24px 22px 26px}
  .news-feature-body h3{font-size:1.28rem}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media(max-width:520px){
  .hero h1{font-size:1.85rem}
  .hero-badges span{font-size:13px;padding:8px 14px}
  .sell-num{font-size:30px}
  .stat{padding:26px 22px}
  .topic-item{padding:22px 20px}
  .faq-q{padding:18px 18px;font-size:15.5px}
  .faq-a-inner{padding:0 18px 20px}
}

/* roulang page: article */
:root{
  --ink-green:#163A34;
  --ink-green-deep:#0D1C19;
  --mist-teal:#7FA79B;
  --sand-orange:#D97742;
  --sand-orange-dark:#C2642F;
  --bg-cream:#F7F4EE;
  --bg-mist:#EEF3F1;
  --card:#FFFFFF;
  --text:#1B2421;
  --text-sub:#5C6B66;
  --text-weak:#8A9691;
  --text-invert:#F4F7F5;
  --line:#DDE3DE;
  --line-dark:rgba(255,255,255,.14);
  --ok:#2F7D5C;
  --warn:#B7791F;
  --err:#B3423A;
  --info:#3B6E8F;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,28,25,.06);
  --sh-2:0 10px 30px rgba(13,28,25,.08);
  --sh-3:0 18px 44px rgba(13,28,25,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","SF Mono","Menlo",monospace;
  --container:1260px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:var(--font-sans);
  font-size:17px;line-height:1.85;
  color:var(--text);background:var(--bg-cream);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink-green);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--sand-orange);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink-green);line-height:1.25;margin:0;font-weight:700;letter-spacing:.2px;}
p{margin:0 0 1.25em;}
ul,ol{margin:0 0 1.25em;padding-left:1.35em;}
li{margin:.4em 0;}
::selection{background:rgba(217,119,66,.24);}
:focus-visible{outline:2px solid var(--mist-teal);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ============ HEADER / NAV ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  background:rgba(13,28,25,.28);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 6px 24px rgba(13,28,25,.10);
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-solid{
  background:var(--ink-green-deep);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 8px 28px rgba(13,28,25,.28);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px;}
.logo{display:flex;align-items:center;gap:12px;color:var(--text-invert);flex:0 0 auto;}
.logo:hover{color:var(--text-invert);}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,var(--sand-orange),#B85F2E);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:16px;letter-spacing:.5px;
  box-shadow:0 6px 18px rgba(217,119,66,.34);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-family:var(--font-serif);font-size:17px;letter-spacing:.4px;color:#fff;font-weight:700;}
.logo-text em{font-style:normal;font-size:11.5px;color:rgba(244,247,245,.66);letter-spacing:1.2px;}
.nav-menu{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;}
.nav-menu a{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:rgba(244,247,245,.86);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.08);}
.nav-menu a.active{color:#fff;font-weight:600;}
.nav-menu a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--sand-orange);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-search{
  width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  color:var(--text-invert);cursor:pointer;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.nav-search:hover{background:rgba(255,255,255,.2);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.10);cursor:pointer;padding:0;position:relative;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:#fff;
  transition:transform .26s var(--ease),opacity .22s var(--ease);
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:27px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;letter-spacing:.3px;cursor:pointer;
  border:1px solid transparent;text-align:center;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn--primary{background:var(--sand-orange);color:#fff;box-shadow:0 8px 22px rgba(217,119,66,.28);}
.btn--primary:hover{background:var(--sand-orange-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(217,119,66,.36);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{background:transparent;border-color:var(--mist-teal);color:var(--ink-green);}
.btn--ghost:hover{background:rgba(127,167,155,.14);color:var(--ink-green);transform:translateY(-2px);}
.btn--ghost-invert{background:transparent;border-color:rgba(255,255,255,.42);color:#fff;}
.btn--ghost-invert:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn--sm{min-height:42px;padding:0 20px;font-size:15px;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--sand-orange);font-size:15px;}
.link-arrow svg{transition:transform .22s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ============ ARTICLE HERO ============ */
.article-hero{
  position:relative;padding:150px 0 66px;
  background:
    linear-gradient(180deg,rgba(13,28,25,.90) 0%,rgba(13,28,25,.78) 46%,rgba(13,28,25,.92) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color:var(--text-invert);
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(217,119,66,.30),transparent 68%);
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(244,247,245,.66);margin-bottom:22px;
}
.breadcrumb a{color:rgba(244,247,245,.82);}
.breadcrumb a:hover{color:var(--sand-orange);}
.breadcrumb span.sep{color:rgba(244,247,245,.36);}
.breadcrumb .current{color:rgba(244,247,245,.96);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(217,119,66,.20);border:1px solid rgba(217,119,66,.44);
  color:#F6D8C4;font-size:13px;letter-spacing:1px;margin-bottom:20px;
}
.article-hero h1{
  color:#fff;font-size:clamp(1.75rem,3.6vw,2.9rem);line-height:1.3;
  max-width:940px;margin-bottom:20px;
}
.article-lead{
  max-width:820px;font-size:17px;line-height:1.9;color:rgba(244,247,245,.82);margin-bottom:26px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:13.5px;color:rgba(244,247,245,.70);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(244,247,245,.36);}
.article-meta strong{color:#fff;font-weight:600;}

/* ============ ARTICLE BODY ============ */
.article-wrap{padding:72px 0 96px;background:var(--bg-cream);}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start;}
.article-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:52px 56px;
}
.article-content{max-width:740px;font-size:17.5px;line-height:1.92;color:var(--text);}
.article-content > *:first-child{margin-top:0;}
.article-content h2{
  font-size:clamp(1.35rem,2.2vw,1.7rem);margin:2.2em 0 .9em;padding-left:16px;
  border-left:4px solid var(--sand-orange);
}
.article-content h3{font-size:1.22rem;margin:1.9em 0 .7em;color:var(--ink-green);}
.article-content p{margin:0 0 1.35em;}
.article-content a{color:var(--sand-orange);border-bottom:1px solid rgba(217,119,66,.35);}
.article-content strong{color:var(--ink-green);font-weight:700;}
.article-content ul,.article-content ol{padding-left:1.4em;margin:0 0 1.4em;}
.article-content li{margin:.5em 0;}
.article-content ul li::marker{color:var(--sand-orange);}
.article-content ol li::marker{color:var(--sand-orange);font-weight:700;}
.article-content blockquote{
  margin:1.8em 0;padding:22px 26px;border-left:4px solid var(--mist-teal);
  background:var(--bg-mist);border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--ink-green);font-family:var(--font-serif);font-size:1.03rem;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-md);margin:1.6em auto;box-shadow:var(--sh-2);}
.article-content figure{margin:1.8em 0;}
.article-content figcaption{
  text-align:center;font-size:13.5px;color:var(--text-weak);margin-top:10px;
}
.article-content table{
  width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15.5px;
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
}
.article-content thead{background:var(--bg-mist);}
.article-content th,.article-content td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:left;}
.article-content th{color:var(--ink-green);font-weight:700;font-family:var(--font-serif);}
.article-content tbody tr:last-child td{border-bottom:0;}
.article-content tbody tr:hover{background:#FAFBF9;}
.article-content code{
  background:var(--bg-mist);padding:2px 7px;border-radius:6px;
  font-family:var(--font-num);font-size:14px;color:var(--ink-green);
}
.article-content pre{
  background:var(--ink-green-deep);color:#DCE7E2;padding:20px 22px;border-radius:var(--r-md);
  overflow-x:auto;font-family:var(--font-num);font-size:14px;line-height:1.7;margin:1.8em 0;
}
.article-content hr{border:0;border-top:1px dashed var(--line);margin:2.4em 0;}

.inline-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin:2.4em 0;padding:20px 24px;border-radius:var(--r-md);
  background:var(--bg-mist);border:1px dashed var(--mist-teal);
}
.inline-cta p{margin:0;font-size:15.5px;color:var(--ink-green);font-weight:600;}
.inline-cta .btn{min-height:42px;font-size:14.5px;padding:0 20px;}

.empty-state{
  text-align:center;padding:64px 28px;border-radius:var(--r-lg);
  background:var(--bg-mist);border:1px dashed var(--mist-teal);
}
.empty-state h2{font-size:1.5rem;margin-bottom:14px;}
.empty-state p{color:var(--text-sub);margin-bottom:22px;}

/* tags */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--bg-mist);color:var(--ink-green);font-size:13.5px;border:1px solid var(--line);
  transition:background .22s var(--ease),color .22s var(--ease);
}
.tag:hover{background:var(--mist-teal);color:#fff;}

/* prev / next */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px;}
.pager a{
  display:block;padding:20px 22px;border-radius:var(--r-md);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.pager a:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--mist-teal);}
.pager .pager-label{display:block;font-size:12.5px;color:var(--text-weak);letter-spacing:1px;margin-bottom:6px;}
.pager .pager-title{font-family:var(--font-serif);font-size:15.5px;color:var(--ink-green);font-weight:700;}
.pager .pager-next{text-align:right;}

/* sidebar */
.sidebar{display:flex;flex-direction:column;gap:22px;position:sticky;top:100px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:1.05rem;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--sand-orange);}
.side-list{list-style:none;margin:0;padding:0;}
.side-list li{margin:0;border-bottom:1px dashed var(--line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{display:block;padding:11px 0;font-size:15px;color:var(--text-sub);}
.side-list a:hover{color:var(--sand-orange);padding-left:6px;}
.side-note{font-size:14px;color:var(--text-sub);line-height:1.8;margin-bottom:18px;}
.side-card--dark{
  background:linear-gradient(160deg,var(--ink-green),var(--ink-green-deep));
  border-color:rgba(255,255,255,.12);color:var(--text-invert);
}
.side-card--dark h3{color:#fff;}
.side-card--dark .side-note{color:rgba(244,247,245,.76);}
.side-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px;}
.side-stats div{background:rgba(255,255,255,.07);border:1px solid var(--line-dark);border-radius:var(--r-md);padding:12px;}
.side-stats b{display:block;font-family:var(--font-num);font-size:20px;color:#fff;}
.side-stats span{font-size:12.5px;color:rgba(244,247,245,.62);}

/* related */
.related{padding:0 0 96px;background:var(--bg-cream);}
.section-head{margin-bottom:40px;max-width:720px;}
.section-head .eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:2px;color:var(--sand-orange);
  font-weight:700;margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);margin-bottom:14px;}
.section-head p{color:var(--text-sub);margin:0;font-size:16px;}
.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;}
.post-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--mist-teal);}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-mist);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-tag{
  align-self:flex-start;font-size:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(22,58,52,.08);color:var(--ink-green);margin-bottom:12px;
}
.post-body h3{font-size:1.05rem;line-height:1.5;margin-bottom:10px;}
.post-body h3 a{color:var(--ink-green);}
.post-card:hover .post-body h3 a{color:var(--sand-orange);}
.post-body p{font-size:14.5px;color:var(--text-sub);line-height:1.75;margin:0 0 18px;flex:1 1 auto;}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-weak);border-top:1px solid var(--line);padding-top:14px;
}

/* cta band */
.cta-band{
  background:linear-gradient(135deg,var(--ink-green) 0%,var(--ink-green-deep) 100%);
  color:var(--text-invert);padding:76px 0;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-100px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,167,155,.28),transparent 70%);
}
.cta-band .container{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:12px;}
.cta-band p{color:rgba(244,247,245,.78);margin:0;max-width:600px;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ FOOTER ============ */
footer.site-footer{background:var(--ink-green-deep);color:var(--text-invert);padding:74px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid var(--line-dark);}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .logo-mark{width:40px;height:40px;flex:0 0 40px;font-size:15px;}
.footer-brand strong{font-family:var(--font-serif);font-size:17px;color:#fff;display:block;}
.footer-brand em{font-style:normal;font-size:12px;color:rgba(244,247,245,.60);letter-spacing:1px;}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:18px;font-family:var(--font-serif);}
.footer-col p{color:rgba(244,247,245,.68);font-size:14.5px;line-height:1.85;margin:0 0 14px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin:0;}
.footer-col li a{display:block;padding:6px 0;font-size:14.5px;color:rgba(244,247,245,.70);}
.footer-col li a:hover{color:var(--sand-orange);}
.footer-contact li{font-size:14.5px;color:rgba(244,247,245,.70);padding:6px 0;}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding-top:24px;font-size:13.5px;color:rgba(244,247,245,.52);
}
.footer-bottom a{color:rgba(244,247,245,.66);}
.footer-bottom a:hover{color:var(--sand-orange);}
.to-top{
  position:fixed;right:26px;bottom:104px;z-index:800;
  width:48px;height:48px;border-radius:50%;border:1px solid var(--line);
  background:var(--card);color:var(--ink-green);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--ink-green);color:#fff;}

/* floating cta */
.float-cta{
  position:fixed;right:26px;bottom:32px;z-index:810;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 24px;border-radius:var(--r-pill);
  background:var(--sand-orange);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 14px 34px rgba(217,119,66,.38);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s,background .22s var(--ease);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--sand-orange-dark);color:#fff;}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:translateY(0);}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* ============ RESPONSIVE ============ */
@media (max-width:1200px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-grid{grid-template-columns:minmax(0,1fr) 290px;gap:36px;}
  .article-main{padding:44px 40px;}
}
@media (max-width:992px){
  .container{padding:0 24px;}
  .nav-menu{
    position:fixed;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--ink-green-deep);padding:12px 24px 24px;
    border-top:1px solid var(--line-dark);
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
    max-height:calc(100vh - 74px);overflow-y:auto;
  }
  .nav-menu.open{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
  .nav-menu a{padding:14px 4px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08);border-radius:0;}
  .nav-menu a.active::after{left:4px;right:auto;width:26px;bottom:8px;}
  .nav-toggle{display:block;}
  .nav-actions .btn--primary{display:none;}
  .article-grid{grid-template-columns:minmax(0,1fr);}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap;}
  .sidebar > *{flex:1 1 300px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-hero{padding:132px 0 56px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .article-main{padding:32px 22px;border-radius:var(--r-md);}
  .article-content{font-size:16.5px;line-height:1.88;}
  .article-wrap{padding:48px 0 64px;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .pager{grid-template-columns:1fr;}
  .pager .pager-next{text-align:left;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:56px 0;}
  .cta-band .container{flex-direction:column;align-items:flex-start;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    padding:16px 18px;transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
  .to-top{bottom:84px;right:16px;}
  .article-hero h1{font-size:1.55rem;}
  .article-content table{display:block;overflow-x:auto;white-space:nowrap;}
  .related{padding-bottom:72px;}
}
@media (max-width:520px){
  .logo-text em{display:none;}
  .logo-text strong{font-size:15.5px;}
  .nav{min-height:66px;}
  .nav-menu{top:66px;}
  .article-hero{padding:112px 0 46px;}
  .article-meta{font-size:12.5px;gap:8px 14px;}
  .section-head h2{font-size:1.35rem;}
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root{
  --ink:#163A34;
  --ink-2:#1F4A42;
  --teal:#7FA79B;
  --sand:#D97742;
  --sand-dark:#C1652F;
  --bg:#F7F4EE;
  --dark:#0D1C19;
  --card:#FFFFFF;
  --mist:#EEF3F1;
  --text:#1B2421;
  --text-2:#5C6B66;
  --text-3:#8A9691;
  --line:#DDE3DE;
  --ok:#2F7D5C;
  --warn:#B7791F;
  --err:#B3423A;
  --info:#3B6E8F;
  --white:#F4F7F5;

  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(13,28,25,.06);
  --sh-2:0 10px 30px rgba(13,28,25,.08);
  --sh-3:0 18px 44px rgba(13,28,25,.14);

  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;

  --font-title:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}

/* ========== Reset / Base ========== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-radius:0;}
a{color:var(--ink);text-decoration:none;transition:color .22s var(--ease),opacity .22s var(--ease);}
a:hover{color:var(--sand);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-family:var(--font-title);line-height:1.25;font-weight:700;letter-spacing:.01em;}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(217,119,66,.22);}

/* ========== 容器 ========== */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.container--narrow{max-width:980px;}

/* ========== 通用按钮 ========== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:16px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  background:var(--sand);
  color:#fff;
  box-shadow:0 8px 22px rgba(217,119,66,.28);
}
.btn--primary:hover{background:var(--sand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(217,119,66,.34);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(217,119,66,.26);}
.btn--ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--teal);
}
.btn--ghost:hover{background:rgba(127,167,155,.14);color:var(--ink);transform:translateY(-2px);border-color:var(--ink);}
.btn--ghost:active{transform:translateY(1px);}
.btn--light{
  background:transparent;
  color:var(--white);
  border-color:rgba(255,255,255,.42);
}
.btn--light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn--block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  font-size:15px;
  color:var(--sand);
}
.link-arrow::after{content:"→";transition:transform .22s var(--ease);}
.link-arrow:hover{color:var(--sand-dark);}
.link-arrow:hover::after{transform:translateX(4px);}

/* ========== 徽章 / 标签 ========== */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:600;
  line-height:1.4;
  background:var(--mist);
  color:var(--ink);
  border:1px solid var(--line);
}
.badge--sand{background:rgba(217,119,66,.12);color:var(--sand-dark);border-color:rgba(217,119,66,.24);}
.badge--teal{background:rgba(127,167,155,.18);color:var(--ink);border-color:rgba(127,167,155,.36);}

/* ========== 导航 ========== */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:120;
  background:rgba(13,28,25,.28);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background-color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  background:var(--dark);
  border-bottom-color:rgba(255,255,255,.10);
  box-shadow:0 10px 30px rgba(13,28,25,.28);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:78px;
}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--sand);
  color:#fff;
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(217,119,66,.32);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{
  font-family:var(--font-title);
  font-size:17px;
  font-weight:700;
  color:var(--white);
  letter-spacing:.02em;
}
.logo-text em{
  font-style:normal;
  font-size:12px;
  color:rgba(244,247,245,.62);
  letter-spacing:.06em;
}
.nav-menu{display:flex;align-items:center;gap:30px;}
.nav-menu a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:rgba(244,247,245,.84);
  padding:6px 0;
}
.nav-menu a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--sand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-menu a:hover{color:#fff;}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.active{color:#fff;}
.nav-menu a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-search{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.24);
  color:rgba(244,247,245,.88);
  transition:background-color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.nav-search:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);transform:translateY(-2px);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.24);
  padding:11px 10px;
  flex-direction:column;
  justify-content:space-between;
}
.nav-toggle span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--white);
  transition:transform .26s var(--ease),opacity .2s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(9px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-9px) rotate(-45deg);}

/* ========== Hero ========== */
.page-hero{
  position:relative;
  min-height:70vh;
  display:flex;
  align-items:flex-end;
  padding:170px 0 84px;
  background-image:linear-gradient(100deg,rgba(13,28,25,.90) 0%,rgba(13,28,25,.72) 48%,rgba(13,28,25,.44) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  color:var(--white);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:140px;
  background:linear-gradient(to top,rgba(247,244,238,.96),rgba(247,244,238,0));
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(244,247,245,.68);
  margin-bottom:22px;
}
.crumbs a{color:rgba(244,247,245,.82);}
.crumbs a:hover{color:var(--sand);}
.crumbs .sep{color:rgba(244,247,245,.42);}
.crumbs .current{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:clamp(2.1rem,4.4vw,3.6rem);
  line-height:1.22;
  max-width:940px;
  color:#fff;
  text-shadow:0 3px 26px rgba(13,28,25,.42);
}
.hero-lead{
  max-width:720px;
  margin-top:22px;
  font-size:clamp(1rem,1.4vw,1.15rem);
  line-height:1.9;
  color:rgba(244,247,245,.86);
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.hero-tags span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  font-size:14px;
  color:rgba(244,247,245,.94);
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.hero-tags span::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--sand);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:36px;
}

/* ========== 板块通用 ========== */
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--mist{background:var(--mist);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--sand);
  margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(1.6rem,2.8vw,2.3rem);
  color:var(--ink);
}
.section-head p{
  margin-top:16px;
  font-size:17px;
  color:var(--text-2);
  line-height:1.9;
}

/* ========== 双栏 + 粘性侧栏 ========== */
.content-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 336px;
  gap:48px;
  align-items:start;
}
.main-col{min-width:0;}
.sticky-col{
  position:sticky;
  top:104px;
  display:grid;
  gap:20px;
}

/* 侧栏卡片 */
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:1.05rem;
  color:var(--ink);
  margin-bottom:16px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.toc-list{display:grid;gap:2px;}
.toc-list a{
  display:flex;
  align-items:center;
  gap:12px;
  padding:9px 12px;
  border-radius:var(--r-sm);
  font-size:15px;
  color:var(--text-2);
  transition:background-color .2s var(--ease),color .2s var(--ease),padding-left .2s var(--ease);
}
.toc-list a::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--teal);
  flex-shrink:0;
  transition:background-color .2s var(--ease);
}
.toc-list a:hover{background:var(--mist);color:var(--ink);padding-left:16px;}
.toc-list a:hover::before{background:var(--sand);}
.side-card--dark{
  background:var(--dark);
  border-color:rgba(255,255,255,.14);
  color:var(--white);
}
.side-card--dark h3{color:#fff;border-bottom-color:rgba(255,255,255,.14);}
.side-card--dark p{color:rgba(244,247,245,.76);font-size:15px;line-height:1.85;}
.side-card--dark .btn{margin-top:18px;}
.side-facts{display:grid;gap:14px;margin-top:2px;}
.side-facts li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;}
.side-facts li strong{color:var(--ink);font-family:var(--font-num);font-size:15px;flex-shrink:0;}

/* ========== 正文排版 ========== */
.prose h2{
  font-size:clamp(1.45rem,2.4vw,1.95rem);
  color:var(--ink);
  margin-bottom:20px;
  padding-left:16px;
  border-left:4px solid var(--sand);
  line-height:1.35;
}
.prose h3{
  font-size:1.2rem;
  color:var(--ink);
  margin:32px 0 12px;
}
.prose p{
  color:var(--text-2);
  margin-bottom:20px;
  font-size:17px;
  line-height:1.9;
}
.prose p strong{color:var(--ink);}
.prose ul{margin:0 0 24px;display:grid;gap:10px;}
.prose ul li{
  position:relative;
  padding-left:22px;
  color:var(--text-2);
  font-size:16.5px;
  line-height:1.85;
}
.prose ul li::before{
  content:"";
  position:absolute;
  left:4px;top:11px;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--teal);
  transform:rotate(45deg);
}
.prose figure{margin:32px 0;}
.prose figure img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
}
.prose figcaption{
  margin-top:12px;
  font-size:14px;
  color:var(--text-3);
  text-align:center;
}
.lead-quote{
  margin:32px 0;
  padding:24px 28px;
  border-radius:var(--r-md);
  background:var(--mist);
  border-left:4px solid var(--ink);
  font-family:var(--font-title);
  font-size:1.08rem;
  line-height:1.9;
  color:var(--ink);
}
.lead-quote p{margin:0;color:var(--ink);font-size:1.05rem;}

/* ========== 要点条卡 ========== */
.point-list{display:grid;gap:18px;margin:32px 0 8px;}
.point-row{
  display:flex;
  gap:22px;
  padding:26px 26px 24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.point-row:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-2);
  border-color:rgba(127,167,155,.5);
}
.point-num{
  font-family:var(--font-num);
  font-size:1.5rem;
  font-weight:700;
  color:var(--sand);
  line-height:1.2;
  flex-shrink:0;
  min-width:44px;
}
.point-body h3{
  font-size:1.12rem;
  color:var(--ink);
  margin-bottom:8px;
}
.point-body p{
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  margin-bottom:10px;
}

/* ========== 对比表 ========== */
.table-wrap{
  overflow-x:auto;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--card);
  box-shadow:var(--sh-1);
  -webkit-overflow-scrolling:touch;
}
.compare-table{
  width:100%;
  min-width:620px;
  border-collapse:collapse;
  font-size:15.5px;
}
.compare-table thead th{
  background:var(--ink);
  color:var(--white);
  font-family:var(--font-title);
  font-size:15px;
  font-weight:700;
  text-align:left;
  padding:18px 22px;
  white-space:nowrap;
}
.compare-table thead th:first-child{border-top-left-radius:0;}
.compare-table tbody td{
  padding:17px 22px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
  line-height:1.75;
  vertical-align:top;
}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr:nth-child(even){background:#FBFCFB;}
.compare-table tbody th{
  padding:17px 22px;
  text-align:left;
  font-family:var(--font-body);
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.compare-table .col-em{color:var(--ink);font-weight:600;}
.compare-table .mark-ok{color:var(--ok);font-weight:600;}
.table-note{
  margin-top:14px;
  font-size:13.5px;
  color:var(--text-3);
}

/* ========== 内联 CTA 条 ========== */
.inline-cta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:18px;
  margin:40px 0;
  padding:26px 30px;
  background:var(--card);
  border:1px solid var(--line);
  border-left:4px solid var(--sand);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
}
.inline-cta p{
  margin:0;
  font-size:16px;
  color:var(--text-2);
  line-height:1.75;
  max-width:560px;
}
.inline-cta p strong{color:var(--ink);}

/* ========== FAQ ========== */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item:hover{border-color:rgba(127,167,155,.5);}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:rgba(127,167,155,.6);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  text-align:left;
  padding:20px 24px;
  font-family:var(--font-title);
  font-size:1.06rem;
  font-weight:700;
  color:var(--ink);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.faq-q:hover{color:var(--sand);}
.faq-icon{
  flex-shrink:0;
  width:28px;height:28px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--mist);
  color:var(--ink);
  transition:transform .28s var(--ease),background-color .28s var(--ease),color .28s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--sand);color:#fff;}
.faq-icon svg{width:14px;height:14px;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a-inner{
  padding:4px 24px 24px;
  background:var(--mist);
  color:var(--text-2);
  font-size:16px;
  line-height:1.9;
}
.faq-a-inner p{margin:0;}
.faq-a-inner p + p{margin-top:12px;}

/* ========== 底部 CTA ========== */
.cta-band{
  position:relative;
  padding:88px 0;
  background-image:linear-gradient(105deg,rgba(13,28,25,.94) 0%,rgba(13,28,25,.80) 60%,rgba(22,58,52,.78) 100%),url(/assets/images/backpic/back-3.png);
  background-size:cover;
  background-position:center;
  color:var(--white);
  overflow:hidden;
}
.cta-band .cta-inner{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
}
.cta-band h2{
  font-size:clamp(1.6rem,2.8vw,2.3rem);
  color:#fff;
  margin-bottom:16px;
}
.cta-band p{
  color:rgba(244,247,245,.82);
  font-size:16.5px;
  line-height:1.9;
  max-width:620px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.cta-facts{
  display:grid;
  gap:14px;
  margin-top:28px;
}
.cta-facts li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:rgba(244,247,245,.86);
}
.cta-facts li::before{
  content:"✓";
  flex-shrink:0;
  color:var(--sand);
  font-weight:700;
}

/* ========== 页脚 ========== */
.site-footer{
  background:var(--dark);
  color:rgba(244,247,245,.76);
  padding:72px 0 28px;
  font-size:15px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .logo-text strong{font-size:17px;}
.footer-brand p{
  margin-top:18px;
  line-height:1.9;
  color:rgba(244,247,245,.66);
  font-size:14.5px;
  max-width:340px;
}
.footer-col h4{
  font-family:var(--font-body);
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{
  color:rgba(244,247,245,.72);
  font-size:14.5px;
}
.footer-col a:hover{color:var(--sand);}
.footer-col li span{color:rgba(244,247,245,.72);font-size:14.5px;line-height:1.7;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
  padding-top:26px;
  font-size:13.5px;
  color:rgba(244,247,245,.52);
}
.footer-bottom a{color:rgba(244,247,245,.66);}
.footer-bottom a:hover{color:var(--sand);}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);
  color:rgba(244,247,245,.86);
  font-size:13.5px;
  transition:background-color .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.to-top:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);border-color:rgba(255,255,255,.5);}

/* ========== 浮动 CTA ========== */
.float-cta{
  position:fixed;
  right:28px;
  bottom:28px;
  z-index:110;
  opacity:0;
  visibility:hidden;
  transform:translateY(14px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta a{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 26px;
  border-radius:var(--r-pill);
  background:var(--sand);
  color:#fff;
  font-size:15.5px;
  font-weight:600;
  box-shadow:0 14px 32px rgba(217,119,66,.36);
  transition:background-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.float-cta a:hover{background:var(--sand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 18px 40px rgba(217,119,66,.44);}

/* ========== 滚动入场动效 ========== */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .52s var(--ease),transform .52s var(--ease);
}
.reveal.is-in{opacity:1;transform:none;}

/* ========== 响应式 ========== */
@media (max-width:1200px){
  .container{padding:0 24px;}
  .content-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px;}
}
@media (max-width:992px){
  .nav-menu{
    position:fixed;
    inset:78px 0 auto 0;
    flex-direction:column;
    align-items:flex-start;
    gap:4px;
    padding:18px 24px 28px;
    background:rgba(13,28,25,.97);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(255,255,255,.12);
    box-shadow:0 24px 40px rgba(13,28,25,.34);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
    max-height:calc(100vh - 78px);
    overflow-y:auto;
  }
  .nav-menu.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-menu a{width:100%;padding:13px 0;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08);}
  .nav-menu a::after{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn--primary{display:none;}
  .section{padding:72px 0;}
  .content-layout{grid-template-columns:1fr;gap:40px;}
  .sticky-col{position:static;top:auto;}
  .cta-band .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .page-hero{min-height:auto;padding:132px 0 64px;}
  .page-hero h1{font-size:clamp(1.75rem,7vw,2.3rem);}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .point-row{flex-direction:column;gap:12px;padding:22px;}
  .inline-cta{flex-direction:column;align-items:flex-start;padding:22px;}
  .float-cta{
    left:0;right:0;bottom:0;
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0);}
  .float-cta a{
    width:100%;
    justify-content:center;
    border-radius:0;
    padding:16px 20px;
    box-shadow:0 -8px 26px rgba(13,28,25,.22);
  }
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .prose figure img{aspect-ratio:16/9;}
}
@media (max-width:520px){
  .logo-text em{display:none;}
  .logo-text strong{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-q{padding:17px 18px;font-size:1rem;}
  .faq-a-inner{padding:2px 18px 20px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --ink:#163A34;
  --ink-deep:#0D1C19;
  --mist:#7FA79B;
  --sand:#D97742;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --soft:#EEF3F1;
  --text:#1B2421;
  --text-2:#5C6B66;
  --text-3:#8A9691;
  --line:#DDE3DE;
  --line-dark:rgba(255,255,255,.14);
  --success:#2F7D5C;
  --warn:#B7791F;
  --error:#B3423A;
  --info:#3B6E8F;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,28,25,.06);
  --sh-2:0 10px 30px rgba(13,28,25,.08);
  --sh-3:0 18px 44px rgba(13,28,25,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec:clamp(58px,8vw,112px);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--serif);line-height:1.25;margin:0;color:var(--ink);font-weight:700;letter-spacing:.005em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--mist);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--sec) 0;}
.section--soft{background:var(--soft);}
.section--dark{background:var(--ink-deep);color:#F4F7F5;}
.section--dark h2,.section--dark h3{color:#F4F7F5;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--sand);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;display:inline-block;}
.sec-head{max-width:760px;margin-bottom:clamp(34px,4vw,56px);}
.sec-head h2{font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:16px;}
.sec-head p{color:var(--text-2);font-size:17px;}
.section--dark .sec-head p{color:rgba(244,247,245,.76);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:900;
  background:rgba(13,28,25,.28);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 6px 24px rgba(13,28,25,.10);
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-solid{
  background:var(--ink-deep);
  border-bottom-color:rgba(255,255,255,.10);
  box-shadow:0 10px 30px rgba(13,28,25,.28);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:76px;
}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--sand),#B85F31);
  color:#fff;font-family:var(--serif);font-weight:700;font-size:16px;letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(217,119,66,.34);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{color:#fff;font-size:17px;font-family:var(--serif);letter-spacing:.02em;}
.logo-text em{font-style:normal;font-size:12px;color:rgba(244,247,245,.68);letter-spacing:.1em;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu a{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:rgba(244,247,245,.84);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scaleX(0);
  width:20px;height:2px;border-radius:2px;background:var(--sand);
  transition:transform .24s var(--ease);
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.08);}
.nav-menu a:hover::after,.nav-menu a.active::after{transform:translateX(-50%) scaleX(1);}
.nav-menu a.active{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-search{
  width:42px;height:42px;border-radius:var(--r-pill);
  display:grid;place-items:center;cursor:pointer;
  background:rgba(255,255,255,.10);color:#F4F7F5;
  border:1px solid rgba(255,255,255,.18);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.nav-search:hover{background:rgba(255,255,255,.2);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.2);
  cursor:pointer;padding:0;place-items:center;gap:5px;flex-direction:column;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:#F4F7F5;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--sand);color:#fff;box-shadow:0 8px 22px rgba(217,119,66,.28);}
.btn--primary:hover{background:#C96A38;transform:translateY(-2px);box-shadow:0 14px 32px rgba(217,119,66,.36);}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--mist);}
.btn--ghost:hover{background:rgba(127,167,155,.14);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn--light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.34);}
.btn--light:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink);font-weight:600;font-size:15px;
  border-bottom:1px solid rgba(22,58,52,.28);padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease),gap .2s var(--ease);
}
.link-arrow::after{content:"→";transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--sand);border-color:var(--sand);gap:10px;}

/* ---------- 内页 banner ---------- */
.page-hero{
  position:relative;isolation:isolate;
  padding:clamp(140px,17vw,196px) 0 clamp(64px,8vw,104px);
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:#F4F7F5;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(115deg,rgba(13,28,25,.94) 0%,rgba(22,58,52,.86) 48%,rgba(13,28,25,.68) 100%);
}
.page-hero .crumbs{font-size:14px;color:rgba(244,247,245,.7);margin-bottom:20px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.page-hero .crumbs a:hover{color:var(--sand);}
.page-hero .crumbs span.dot{opacity:.5;}
.page-hero h1{
  color:#fff;font-size:clamp(2rem,4.6vw,3.4rem);
  max-width:16em;margin-bottom:22px;
}
.page-hero .lede{
  max-width:660px;font-size:clamp(1rem,1.5vw,1.16rem);
  color:rgba(244,247,245,.84);line-height:1.9;
}
.page-hero .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:var(--r-pill);
  font-size:13.5px;letter-spacing:.04em;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.2);
  color:rgba(244,247,245,.9);
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--sand);}

/* ---------- 概览 ---------- */
.split{
  display:grid;grid-template-columns:1.15fr .85fr;
  gap:clamp(28px,4vw,64px);align-items:center;
}
.split--rev{grid-template-columns:.85fr 1.15fr;}
.figure{
  border-radius:var(--r-l);overflow:hidden;
  box-shadow:var(--sh-2);background:var(--card);
  border:1px solid var(--line);
  aspect-ratio:4/3;
}
.figure img{width:100%;height:100%;object-fit:cover;}
.figure--wide{aspect-ratio:16/10;}
.prose p{color:var(--text-2);margin-bottom:18px;font-size:17px;}
.prose p strong{color:var(--ink);}
.checklist{margin-top:26px;display:grid;gap:14px;}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:16px;color:var(--text);
}
.checklist li i{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;margin-top:5px;
  display:grid;place-items:center;background:rgba(127,167,155,.2);
  color:var(--ink);font-style:normal;font-size:12px;font-weight:700;
}
.mini-note{
  margin-top:28px;padding:18px 20px;border-radius:var(--r-m);
  background:var(--soft);border-left:3px solid var(--mist);
  font-size:15px;color:var(--text-2);
}

/* ---------- 时间线 ---------- */
.timeline{margin-top:8px;position:relative;}
.timeline::before{
  content:"";position:absolute;left:27px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(127,167,155,.7),rgba(127,167,155,.15));
}
.tl-item{
  position:relative;display:grid;grid-template-columns:56px 1fr;
  gap:24px;padding:0 0 34px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  position:relative;z-index:1;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--card);border:1px solid var(--line);
  box-shadow:var(--sh-1);
  font-family:var(--serif);font-size:17px;font-weight:700;color:var(--ink);
}
.tl-item.is-key .tl-num{background:var(--ink);border-color:var(--ink);color:#fff;}
.tl-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:rgba(127,167,155,.6);}
.tl-body h3{font-size:1.22rem;margin-bottom:10px;}
.tl-body p{color:var(--text-2);font-size:16px;margin-bottom:12px;}
.tl-body .tag-line{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--soft);color:var(--text-2);font-size:13px;
}

/* ---------- 条卡 ---------- */
.bars{display:grid;gap:18px;}
.bar{
  display:grid;grid-template-columns:auto 1fr auto;
  align-items:center;gap:22px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  padding:22px 26px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.bar:hover{transform:translateX(4px);box-shadow:var(--sh-2);border-color:rgba(127,167,155,.6);}
.bar-num{
  font-family:var(--serif);font-size:26px;font-weight:700;color:var(--sand);
  min-width:52px;letter-spacing:.02em;
}
.bar-body h3{font-size:1.08rem;margin-bottom:6px;font-family:var(--sans);font-weight:700;color:var(--ink);}
.bar-body p{color:var(--text-2);font-size:15.5px;line-height:1.75;}
.bar-icon{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;background:var(--soft);color:var(--ink);
}

/* ---------- 对照表 ---------- */
.table-wrap{
  border-radius:var(--r-l);border:1px solid var(--line);
  background:var(--card);overflow:hidden;box-shadow:var(--sh-1);
}
table{width:100%;border-collapse:collapse;font-size:15.5px;min-width:640px;}
thead th{
  background:var(--ink);color:#fff;font-weight:600;
  text-align:left;padding:16px 22px;font-size:15px;letter-spacing:.04em;
}
tbody td{padding:18px 22px;border-top:1px solid var(--line);color:var(--text-2);vertical-align:top;}
tbody tr:nth-child(even){background:rgba(238,243,241,.5);}
tbody td:first-child{color:var(--ink);font-weight:600;}
.scroll-x{overflow-x:auto;}

/* ---------- 内联 CTA ---------- */
.inline-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:20px;padding:26px 30px;border-radius:var(--r-l);
  background:linear-gradient(120deg,var(--ink) 0%,#1E4B43 100%);
  color:#F4F7F5;margin:56px 0 0;
}
.inline-cta p{font-size:16px;color:rgba(244,247,245,.86);max-width:640px;}
.inline-cta strong{color:#fff;display:block;margin-bottom:4px;font-family:var(--serif);font-size:1.15rem;}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  overflow:hidden;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(127,167,155,.75);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:17px;font-weight:600;color:var(--ink);font-family:var(--sans);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-q:hover{color:var(--sand);background:rgba(238,243,241,.6);}
.faq-q .arrow{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;background:var(--soft);color:var(--ink);
  transition:transform .28s var(--ease),background .24s var(--ease),color .24s var(--ease);
}
.faq-item.is-open .arrow{transform:rotate(180deg);background:var(--sand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);background:var(--soft);}
.faq-a-inner{padding:4px 24px 22px;color:var(--text-2);font-size:16px;line-height:1.85;}

/* ---------- 入口网格 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.entry{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.entry:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(127,167,155,.6);}
.entry-media{aspect-ratio:16/9;overflow:hidden;background:var(--soft);}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.entry:hover .entry-media img{transform:scale(1.04);}
.entry-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-body .badge{
  align-self:flex-start;font-size:12.5px;letter-spacing:.08em;
  padding:3px 11px;border-radius:var(--r-pill);
  background:rgba(127,167,155,.18);color:var(--ink);
}
.entry-body h3{font-size:1.06rem;font-family:var(--sans);font-weight:700;}
.entry-body p{font-size:14.6px;color:var(--text-2);line-height:1.75;flex:1;}
.entry.is-current{border-color:var(--sand);box-shadow:0 14px 34px rgba(217,119,66,.18);}
.entry.is-current .badge{background:rgba(217,119,66,.16);color:#A9522A;}

/* ---------- 联系 CTA ---------- */
.contact-band{
  border-radius:var(--r-l);overflow:hidden;
  background:linear-gradient(120deg,var(--ink-deep) 0%,var(--ink) 100%);
  color:#F4F7F5;padding:clamp(32px,5vw,56px);
  display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(24px,4vw,52px);
  align-items:center;box-shadow:var(--sh-2);
}
.contact-band h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:14px;}
.contact-band p{color:rgba(244,247,245,.82);font-size:16px;}
.contact-list{display:grid;gap:12px;font-size:15.5px;color:rgba(244,247,245,.86);}
.contact-list li{display:flex;gap:10px;align-items:flex-start;}
.contact-list li span{color:var(--sand);font-weight:700;}

/* ---------- 页脚 ---------- */
footer.site-footer{background:var(--ink-deep);color:rgba(244,247,245,.72);padding:clamp(52px,7vw,88px) 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:clamp(24px,3.4vw,48px);}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.foot-brand strong{color:#fff;font-family:var(--serif);font-size:17px;}
.foot-col h4{color:#fff;font-size:15.5px;margin-bottom:18px;letter-spacing:.06em;font-family:var(--sans);font-weight:700;}
.foot-col ul{display:grid;gap:11px;font-size:15px;}
.foot-col a{transition:color .2s var(--ease);}
.foot-col a:hover{color:var(--sand);}
.foot-col p{font-size:15px;line-height:1.85;}
.foot-bottom{
  margin-top:clamp(38px,5vw,64px);padding:24px 0 30px;
  border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:14px;color:rgba(244,247,245,.6);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);color:#F4F7F5;font-size:14px;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:880;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 24px;border-radius:var(--r-pill);
  background:var(--sand);color:#fff;font-weight:600;font-size:15.5px;
  box-shadow:0 14px 34px rgba(217,119,66,.34);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s,background .2s var(--ease);
}
.float-cta.is-on{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:#C96A38;transform:translateY(-2px);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s var(--ease),transform .52s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{padding:0 26px;}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:992px){
  .nav{min-height:68px;gap:14px;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-menu{
    position:fixed;left:0;right:0;top:68px;bottom:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--ink-deep);
    padding:26px 24px 40px;overflow-y:auto;
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  }
  .nav-menu.is-open{opacity:1;visibility:visible;transform:none;pointer-events:auto;}
  .nav-menu a{
    font-size:17px;padding:15px 12px;border-radius:var(--r-m);
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .nav-menu a::after{display:none;}
  .nav-menu a.active{color:var(--sand);}
  .nav-search{display:none;}
  .split,.split--rev{grid-template-columns:1fr;}
  .split--rev .figure{order:-1;}
  .contact-band{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .page-hero{padding-top:132px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .logo-text em{display:none;}
  .nav-actions .btn--primary{display:none;}
  .bar{grid-template-columns:auto 1fr;gap:16px;}
  .bar-icon{display:none;}
  .tl-item{grid-template-columns:44px 1fr;gap:16px;}
  .tl-num{width:44px;height:44px;font-size:15px;}
  .timeline::before{left:21px;}
  .entry-grid{grid-template-columns:1fr;}
  .page-hero .hero-cta .btn{width:100%;}
  .inline-cta{padding:22px 20px;}
  .inline-cta .btn{width:100%;}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;
    justify-content:center;padding:15px 20px;
    transform:translateY(100%);
  }
  .float-cta.is-on{transform:translateY(0);}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:480px){
  .page-hero h1{font-size:1.72rem;}
  .sec-head h2{font-size:1.5rem;}
  .tl-body{padding:20px 18px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a-inner{padding:2px 18px 20px;}
  table{min-width:520px;}
  thead th,tbody td{padding:14px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#163A34;
  --ink-deep:#0D1C19;
  --mist:#7FA79B;
  --amber:#D97742;
  --amber-dark:#C06636;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --soft:#EEF3F1;
  --text:#1B2421;
  --text-2:#5C6B66;
  --text-3:#8A9691;
  --line:#DDE3DE;
  --line-dark:rgba(255,255,255,.14);
  --ok:#2F7D5C;
  --warn:#B7791F;
  --err:#B3423A;
  --info:#3B6E8F;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,28,25,.06);
  --sh-2:0 10px 30px rgba(13,28,25,.08);
  --sh-3:0 18px 44px rgba(13,28,25,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Songti SC",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --num:"Inter","SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--amber);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;line-height:1.25;color:var(--ink);letter-spacing:.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--mist);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;letter-spacing:.02em;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--amber);color:#fff;box-shadow:0 8px 20px rgba(217,119,66,.28);}
.btn--primary:hover{background:#E2854E;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(217,119,66,.34);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{background:transparent;border:1.5px solid var(--mist);color:var(--ink);}
.btn--ghost:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn--ghost:active{transform:translateY(1px);}
.btn--light{background:rgba(255,255,255,.12);border:1.5px solid rgba(255,255,255,.42);color:#F4F7F5;}
.btn--light:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-2px);}
.btn--light:active{transform:translateY(1px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--amber);
}
.link-arrow i{transition:transform .22s var(--ease);}
.link-arrow:hover i{transform:translateX(4px);}
.btn[disabled]{opacity:.4;cursor:not-allowed;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(13,28,25,.28);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 6px 24px rgba(13,28,25,.12);
  transition:background-color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-stuck{
  background:#0D1C19;
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 12px 34px rgba(13,28,25,.28);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:78px;}
.logo{display:flex;align-items:center;gap:12px;color:#F4F7F5;}
.logo:hover{color:#fff;}
.logo-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--amber),#B85C2C);
  font-family:var(--num);font-weight:600;font-size:16px;color:#fff;letter-spacing:.02em;
  box-shadow:0 6px 18px rgba(217,119,66,.36);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-family:var(--serif);font-size:17.5px;font-weight:600;letter-spacing:.02em;}
.logo-text em{font-style:normal;font-size:12px;color:rgba(244,247,245,.68);letter-spacing:.06em;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu a{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:rgba(244,247,245,.86);transition:color .22s var(--ease),background-color .22s var(--ease);
}
.nav-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.08);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.active{color:#fff;font-weight:600;}
.nav-menu a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-search{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  color:rgba(244,247,245,.9);border:1px solid rgba(255,255,255,.22);
  transition:background-color .22s var(--ease),transform .22s var(--ease),color .22s var(--ease);
}
.nav-search:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.22);flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#F4F7F5;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;padding:180px 0 96px;overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(9,22,19,.92) 0%,rgba(13,28,25,.78) 48%,rgba(22,58,52,.62) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(244,247,245,.72);margin-bottom:22px;
}
.breadcrumb a{color:rgba(244,247,245,.86);}
.breadcrumb a:hover{color:var(--amber);}
.breadcrumb span.sep{color:rgba(244,247,245,.4);}
.breadcrumb .current{color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(217,119,66,.16);border:1px solid rgba(217,119,66,.4);
  font-size:13px;letter-spacing:.08em;color:#F0B492;margin-bottom:22px;
}
.eyebrow i{font-size:12px;}
.page-hero h1{
  color:#F4F7F5;font-size:clamp(2rem,4.4vw,3.4rem);max-width:20ch;
  margin-bottom:20px;
}
.page-hero .lead{
  max-width:64ch;font-size:17.5px;line-height:1.85;color:rgba(244,247,245,.82);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-jump{
  display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:38px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-jump a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;color:rgba(244,247,245,.82);
}
.hero-jump a i{color:var(--amber);font-size:12px;}

/* ============ 通用板块 ============ */
.section{padding:104px 0;}
.section--tight{padding:76px 0;}
.section--soft{background:var(--soft);}
.section--paper{background:#fff;}
.section--dark{background:var(--ink-deep);color:rgba(244,247,245,.82);}
.section--dark h2,.section--dark h3{color:#F4F7F5;}
.section-head{max-width:720px;margin-bottom:52px;}
.section-head .tag{
  display:inline-block;font-family:var(--num);font-size:12.5px;letter-spacing:.16em;
  color:var(--amber);text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.section-head h2{font-size:clamp(1.6rem,3vw,2.35rem);margin-bottom:16px;}
.section-head p{color:var(--text-2);font-size:16.5px;}
.section--dark .section-head p{color:rgba(244,247,245,.7);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 概览双栏 ============ */
.overview{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;}
.overview-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.overview-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.overview-media .stamp{
  position:absolute;left:18px;bottom:18px;
  background:rgba(13,28,25,.82);color:#F4F7F5;
  padding:10px 16px;border-radius:var(--r-pill);
  font-size:13px;letter-spacing:.04em;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.check-list{margin-top:28px;display:grid;gap:16px;}
.check-list li{
  display:grid;grid-template-columns:26px 1fr;gap:14px;align-items:start;
  font-size:16px;color:var(--text-2);
}
.check-list li i{
  width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:rgba(127,167,155,.2);color:var(--ink);font-size:12px;margin-top:3px;
}
.check-list li strong{color:var(--text);font-weight:600;}

/* ============ 筛选区 ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;margin-bottom:38px;
  padding:14px;border-radius:var(--r-pill);background:#fff;box-shadow:var(--sh-1);
  border:1px solid var(--line);
}
.filter-btn{
  padding:9px 20px;border-radius:var(--r-pill);font-size:14.5px;font-weight:600;
  color:var(--text-2);background:transparent;border:1px solid transparent;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.filter-btn:hover{color:var(--ink);background:var(--soft);transform:translateY(-1px);}
.filter-btn.is-active{background:var(--ink);color:#F4F7F5;border-color:var(--ink);}
.filter-count{margin-left:auto;align-self:center;padding:0 16px;font-size:13.5px;color:var(--text-3);font-family:var(--num);}

.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.support-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:30px 26px 26px;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  display:flex;flex-direction:column;
}
.support-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(127,167,155,.6);}
.support-card.is-hidden{display:none;}
.card-no{
  font-family:var(--num);font-size:12.5px;letter-spacing:.16em;color:var(--text-3);
  margin-bottom:18px;display:flex;align-items:center;justify-content:space-between;
}
.card-no .chip{
  font-family:var(--sans);font-size:12px;letter-spacing:.04em;color:var(--ink);
  background:var(--soft);border-radius:var(--r-pill);padding:3px 11px;
}
.card-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(127,167,155,.24),rgba(127,167,155,.08));
  color:var(--ink);font-size:18px;margin-bottom:18px;
}
.support-card h3{font-size:1.16rem;line-height:1.45;margin-bottom:12px;}
.support-card p{font-size:14.8px;color:var(--text-2);line-height:1.75;flex:1;}
.card-foot{
  margin-top:22px;padding-top:18px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.card-foot .meta{font-size:13px;color:var(--text-3);}
.empty-note{
  display:none;padding:36px;border-radius:var(--r-md);background:var(--soft);
  border:1px dashed var(--line);text-align:center;color:var(--text-2);font-size:15px;
}
.empty-note.show{display:block;}

/* ============ 编号步骤 ============ */
.steps{display:grid;gap:0;margin-top:12px;}
.step-item{
  display:grid;grid-template-columns:110px 1fr;gap:32px;
  padding:34px 0;border-bottom:1px solid var(--line);
  transition:background-color .25s var(--ease);
}
.step-item:first-child{border-top:1px solid var(--line);}
.step-item:hover{background:rgba(255,255,255,.6);}
.step-no{
  font-family:var(--num);font-size:2.4rem;font-weight:600;line-height:1;
  color:rgba(127,167,155,.68);letter-spacing:.02em;
}
.step-body h3{font-size:1.22rem;margin-bottom:10px;}
.step-body p{color:var(--text-2);font-size:15.5px;}
.step-body .mini{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;
  font-size:13.5px;color:var(--ink);background:var(--soft);
  border-radius:var(--r-pill);padding:6px 14px;
}

/* ============ 短文卡片 ============ */
.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.note-card{
  background:#fff;border-radius:var(--r-md);border:1px solid var(--line);
  border-left:4px solid var(--amber);padding:28px 26px;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.note-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.note-card h3{font-size:1.1rem;margin-bottom:10px;}
.note-card p{font-size:14.8px;color:var(--text-2);}

/* ============ 对比表 ============ */
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);
}
table.compare{width:100%;border-collapse:collapse;min-width:720px;}
table.compare th,table.compare td{
  padding:18px 22px;text-align:left;font-size:14.8px;border-bottom:1px solid var(--line);
  vertical-align:top;
}
table.compare thead th{
  background:var(--ink);color:#F4F7F5;font-family:var(--serif);font-weight:600;
  font-size:15px;letter-spacing:.02em;border-bottom:none;
}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody tr:hover{background:var(--soft);}
table.compare td:first-child{font-weight:600;color:var(--ink);white-space:nowrap;}
.badge{
  display:inline-block;padding:3px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
}
.badge--ok{background:rgba(47,125,92,.12);color:var(--ok);}
.badge--info{background:rgba(59,110,143,.12);color:var(--info);}
.badge--warn{background:rgba(183,121,31,.14);color:var(--warn);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:980px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.faq-item:hover{border-color:rgba(127,167,155,.6);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;text-align:left;font-family:var(--serif);font-size:1.06rem;
  font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-q i{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:var(--soft);color:var(--ink);font-size:12px;
  transition:transform .28s var(--ease),background-color .28s var(--ease),color .28s var(--ease);
}
.faq-item.is-open .faq-q i{transform:rotate(180deg);background:var(--amber);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s var(--ease);
  background:var(--soft);
}
.faq-a-inner{padding:4px 26px 24px;font-size:15.4px;color:var(--text-2);line-height:1.85;}

/* ============ 内联 CTA ============ */
.cta-inline{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  padding:30px 36px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(22,58,52,.96),rgba(13,28,25,.96));
  color:rgba(244,247,245,.86);box-shadow:var(--sh-2);
}
.cta-inline strong{
  font-family:var(--serif);font-size:1.2rem;color:#F4F7F5;display:block;margin-bottom:6px;font-weight:600;
}
.cta-inline span{font-size:14.8px;}
.cta-inline .btn{flex:0 0 auto;}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:64px 56px;color:rgba(244,247,245,.86);
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(9,22,19,.94),rgba(22,58,52,.82));
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:#F4F7F5;font-size:clamp(1.5rem,2.6vw,2.1rem);margin-bottom:14px;}
.cta-band p{max-width:62ch;font-size:16px;}
.cta-band .hero-cta{margin-top:30px;}
.cta-band .facts{
  display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:34px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.16);font-size:13.8px;color:rgba(244,247,245,.72);
}
.cta-band .facts span i{color:var(--amber);margin-right:8px;}

/* ============ 相关入口 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease);}
.related-card:hover img{transform:scale(1.03);}
.related-body{padding:24px 24px 26px;}
.related-body h3{font-size:1.08rem;margin-bottom:10px;}
.related-body p{font-size:14.6px;color:var(--text-2);margin-bottom:16px;}

/* ============ 页脚 ============ */
footer.site-footer{background:var(--ink-deep);color:rgba(244,247,245,.74);padding:74px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;}
.footer-brand .logo{margin-bottom:20px;}
.footer-brand p{font-size:14.6px;line-height:1.85;color:rgba(244,247,245,.66);max-width:38ch;}
.footer-col h4{
  font-family:var(--serif);font-size:1rem;color:#F4F7F5;margin-bottom:20px;font-weight:600;
}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14.6px;color:rgba(244,247,245,.7);}
.footer-col a:hover{color:var(--amber);}
.footer-col address{font-style:normal;font-size:14.6px;line-height:2;color:rgba(244,247,245,.7);}
.footer-col address i{width:18px;color:var(--mist);margin-right:8px;}
.footer-bottom{
  margin-top:56px;padding:24px 0;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13.5px;color:rgba(244,247,245,.56);
}
.footer-bottom .legal{display:flex;flex-wrap:wrap;gap:8px 20px;}
.to-top{
  display:inline-flex;align-items:center;gap:8px;color:rgba(244,247,245,.74);
  padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--line-dark);
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.to-top:hover{background:rgba(255,255,255,.1);color:#fff;transform:translateY(-2px);}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:110;
  display:inline-flex;align-items:center;gap:10px;
  padding:0 26px;min-height:52px;border-radius:var(--r-pill);
  background:var(--amber);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 16px 38px rgba(217,119,66,.4);
  opacity:0;visibility:hidden;transform:translateY(18px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease),background-color .22s var(--ease);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:#E2854E;color:#fff;transform:translateY(-2px);}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s var(--ease),transform .52s var(--ease);}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 24px;}
  .overview{gap:44px;}
  .support-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:992px){
  .nav-menu{
    position:fixed;inset:78px 0 0;background:#0D1C19;
    flex-direction:column;align-items:stretch;gap:0;padding:24px;
    transform:translateX(100%);transition:transform .3s var(--ease);
    overflow-y:auto;
  }
  .nav-menu.is-open{transform:translateX(0);}
  .nav-menu a{padding:16px 8px;border-bottom:1px solid var(--line-dark);border-radius:0;font-size:16.5px;}
  .nav-menu a::after{display:none;}
  .nav-toggle{display:flex;}
  .nav-search{display:none;}
  .nav-actions .btn{display:none;}
  .section{padding:76px 0;}
  .overview{grid-template-columns:1fr;gap:36px;}
  .overview-media img{aspect-ratio:16/9;}
  .note-grid,.related-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .step-item{grid-template-columns:84px 1fr;gap:22px;}
  .step-no{font-size:2rem;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .page-hero{padding:140px 0 72px;}
  .section{padding:56px 0;}
  .support-grid,.note-grid,.related-grid{grid-template-columns:1fr;}
  .cta-band{padding:44px 26px;}
  .cta-inline{padding:24px 22px;}
  .cta-inline .btn{width:100%;}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;justify-content:center;
    min-height:56px;box-shadow:0 -8px 28px rgba(13,28,25,.2);
  }
  .footer-bottom{padding-bottom:76px;}
  .filter-bar{border-radius:var(--r-md);}
  .filter-count{margin-left:0;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .logo-text strong{font-size:15.5px;}
  .logo-text em{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .step-item{grid-template-columns:1fr;gap:10px;}
  .hero-cta .btn{width:100%;}
  .faq-q{padding:18px 18px;font-size:1rem;}
  .faq-a-inner{padding:4px 18px 20px;}
}

/* roulang page: category4 */
:root{
  --green:#163A34;
  --green-deep:#0D1C19;
  --mist:#7FA79B;
  --orange:#D97742;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --light:#EEF3F1;
  --text:#1B2421;
  --text-2:#5C6B66;
  --text-3:#8A9691;
  --white:#F4F7F5;
  --border:#DDE3DE;
  --success:#2F7D5C;
  --warn:#B7791F;
  --error:#B3423A;
  --info:#3B6E8F;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,28,25,.06);
  --sh-2:0 10px 30px rgba(13,28,25,.08);
  --sh-3:0 18px 44px rgba(13,28,25,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-serif);line-height:1.25;color:var(--green);margin:0;font-weight:700;}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
img{display:block;max-width:100%;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--mist);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(13,28,25,.28);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 6px 24px rgba(13,28,25,.12);
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.scrolled{
  background:var(--green-deep);
  border-bottom-color:rgba(255,255,255,.10);
  box-shadow:0 12px 34px rgba(13,28,25,.28);
}
.nav{display:flex;align-items:center;gap:28px;min-height:76px;}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--orange),#C25F2E);
  color:#fff;font-family:var(--font-serif);font-size:17px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(217,119,66,.32);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{color:var(--white);font-size:17px;font-weight:700;letter-spacing:.02em;}
.logo-text em{font-style:normal;font-size:12px;color:rgba(244,247,245,.62);letter-spacing:.06em;}
.nav-menu{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-menu a{
  position:relative;color:rgba(244,247,245,.84);font-size:15px;padding:6px 2px;
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-6px;height:2px;border-radius:2px;
  background:var(--orange);transition:left .24s var(--ease),right .24s var(--ease);
}
.nav-menu a:hover{color:#fff;}
.nav-menu a:hover::after,.nav-menu a.active::after{left:0;right:0;}
.nav-menu a.active{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px;}
.nav-search{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.24);color:var(--white);
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.nav-search:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.24);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--white);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
  cursor:pointer;border:1px solid transparent;
}
.btn--primary{background:var(--orange);color:#fff;box-shadow:0 10px 24px rgba(217,119,66,.26);}
.btn--primary:hover{background:#E28249;transform:translateY(-2px);box-shadow:0 16px 32px rgba(217,119,66,.34);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{background:transparent;border-color:rgba(127,167,155,.7);color:var(--green);}
.btn--ghost:hover{background:rgba(127,167,155,.14);transform:translateY(-2px);}
.btn--light{background:rgba(244,247,245,.12);border-color:rgba(244,247,245,.45);color:var(--white);}
.btn--light:hover{background:rgba(244,247,245,.22);transform:translateY(-2px);}
.btn:disabled{opacity:.4;cursor:not-allowed;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--orange);font-weight:600;font-size:15px;
}
.link-more::after{content:"→";transition:transform .22s var(--ease);}
.link-more:hover::after{transform:translateX(4px);}

/* ---------- 内页横幅 ---------- */
.banner{
  position:relative;padding:150px 0 76px;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(13,28,25,.86),rgba(13,28,25,.72)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.banner::after{
  content:"";position:absolute;inset:auto 0 0 0;height:120px;
  background:linear-gradient(180deg,rgba(13,28,25,0),var(--bg));
}
.banner .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(244,247,245,.7);margin-bottom:22px;}
.breadcrumb a{color:rgba(244,247,245,.86);}
.breadcrumb a:hover{color:var(--orange);}
.breadcrumb span.sep{color:rgba(244,247,245,.38);}
.breadcrumb .current{color:rgba(244,247,245,.6);}
.banner h1{
  color:#fff;font-size:clamp(2rem,4.4vw,3.4rem);max-width:16em;letter-spacing:.01em;
}
.banner-lead{
  margin-top:20px;max-width:46em;color:rgba(244,247,245,.82);font-size:17px;line-height:1.85;
}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border-radius:var(--r-pill);
  font-size:13.5px;letter-spacing:.03em;
  background:rgba(244,247,245,.12);border:1px solid rgba(244,247,245,.24);color:rgba(244,247,245,.92);
}
.tag--solid{background:rgba(217,119,66,.18);border-color:rgba(217,119,66,.5);color:#F6C6A6;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--light{background:var(--light);}
.section--deep{background:var(--green-deep);color:var(--white);}
.section--deep h2,.section--deep h3{color:var(--white);}
.section--deep .eyebrow{color:#F6C6A6;}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--mist);font-weight:700;margin-bottom:14px;
}
.sec-head{max-width:56em;margin-bottom:48px;}
.sec-head h2{font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:16px;}
.sec-head p{color:var(--text-2);font-size:16.5px;}
.section--deep .sec-head p{color:rgba(244,247,245,.72);}

/* ---------- 事实条 ---------- */
.factbar{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);
  border:1px solid var(--border);border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-1);
}
.fact{background:var(--card);padding:30px 28px;}
.fact b{
  display:block;font-family:var(--font-serif);font-size:clamp(1.9rem,3.4vw,2.6rem);
  color:var(--green);line-height:1.1;font-variant-numeric:tabular-nums;
}
.fact b i{font-style:normal;font-size:.5em;color:var(--orange);margin-left:4px;}
.fact span{display:block;margin-top:10px;font-size:14px;color:var(--text-2);}

/* ---------- 图文错位 ---------- */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;margin-top:64px;}
.split--reverse{grid-template-columns:.85fr 1.15fr;}
.split-media{position:relative;}
.split-media img{border-radius:var(--r-l);box-shadow:var(--sh-2);aspect-ratio:16/10;object-fit:cover;width:100%;}
.split-media figcaption{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(13,28,25,.72);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  color:rgba(244,247,245,.9);font-size:13px;padding:12px 16px;border-radius:var(--r-m);
}
.split-body h3{font-size:1.5rem;margin-bottom:14px;}
.split-body p{color:var(--text-2);margin-bottom:18px;}
.check-list{display:grid;gap:12px;margin:22px 0;}
.check-list li{display:flex;gap:10px;font-size:15.5px;color:var(--text-2);}
.check-list li::before{
  content:"✓";flex-shrink:0;width:22px;height:22px;border-radius:50%;
  background:var(--light);color:var(--success);display:grid;place-items:center;font-size:12px;margin-top:5px;
}

/* ---------- 问答主线 ---------- */
.qa-track{position:relative;padding-left:34px;margin-top:14px;}
.qa-track::before{
  content:"";position:absolute;left:11px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--mist),rgba(127,167,155,.15));
}
.qa-item{position:relative;margin-bottom:18px;}
.qa-item::before{
  content:"";position:absolute;left:-29px;top:26px;width:12px;height:12px;border-radius:50%;
  background:var(--card);border:3px solid var(--mist);transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.qa-item.open::before{border-color:var(--orange);transform:scale(1.15);}
.qa-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-m);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.qa-item.open .qa-card{box-shadow:var(--sh-2);border-color:rgba(127,167,155,.6);}
.qa-btn{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:22px 24px;background:transparent;
}
.qa-num{
  font-family:var(--font-serif);font-size:15px;color:var(--orange);font-weight:700;
  flex-shrink:0;letter-spacing:.04em;
}
.qa-text{flex:1;font-size:17px;font-weight:600;color:var(--green);line-height:1.5;font-family:var(--font-serif);}
.qa-arrow{
  flex-shrink:0;width:12px;height:12px;border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);transition:transform .28s var(--ease),border-color .24s var(--ease);margin-top:-4px;
}
.qa-item.open .qa-arrow{transform:rotate(-135deg);border-color:var(--orange);margin-top:4px;}
.qa-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s var(--ease);}
.qa-item.open .qa-a{grid-template-rows:1fr;}
.qa-a-inner{overflow:hidden;}
.qa-a-body{
  padding:0 24px 24px 24px;color:var(--text-2);font-size:16px;
}
.qa-a-body p+p{margin-top:12px;}
.qa-a-body .qa-meta{
  margin-top:16px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  font-size:13px;color:var(--text-3);
}
.chip{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--light);color:var(--green);font-size:12.5px;letter-spacing:.02em;
}
.chip--warn{background:rgba(183,121,31,.12);color:var(--warn);}
.chip--info{background:rgba(59,110,143,.12);color:var(--info);}

/* ---------- 对比表 ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-l);
  background:var(--card);box-shadow:var(--sh-1);
}
table{width:100%;border-collapse:collapse;min-width:660px;}
thead th{
  background:var(--green);color:var(--white);font-family:var(--font-serif);
  font-size:15px;font-weight:700;text-align:left;padding:18px 22px;letter-spacing:.03em;
}
tbody td{
  padding:18px 22px;border-top:1px solid var(--border);font-size:15.5px;color:var(--text-2);
  vertical-align:top;
}
tbody tr:nth-child(even) td{background:rgba(238,243,241,.5);}
tbody td:first-child{color:var(--green);font-weight:600;}
.cell-ok{color:var(--success);font-weight:600;}
.cell-warn{color:var(--warn);font-weight:600;}

/* ---------- 引用 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:8px;}
.quote{
  position:relative;background:var(--card);border:1px solid var(--border);
  border-left:4px solid var(--orange);border-radius:var(--r-m);
  padding:30px 30px 26px;box-shadow:var(--sh-1);
}
.quote::before{
  content:"“";position:absolute;top:6px;right:22px;font-family:var(--font-serif);
  font-size:64px;color:rgba(127,167,155,.28);line-height:1;
}
.quote p{color:var(--text);font-size:16px;line-height:1.85;}
.quote footer{
  margin-top:18px;font-size:13px;color:var(--text-3);
  border-top:1px dashed var(--border);padding-top:14px;
}

/* ---------- 步骤编号 ---------- */
.steps{counter-reset:step;display:grid;gap:18px;}
.steps li{
  counter-increment:step;display:grid;grid-template-columns:56px 1fr;gap:20px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-m);
  padding:24px 26px;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.steps li:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.steps li::before{
  content:counter(step,decimal-leading-zero);
  font-family:var(--font-serif);font-size:22px;color:var(--orange);font-weight:700;line-height:1.4;
}
.steps h3{font-size:1.15rem;margin-bottom:8px;}
.steps p{color:var(--text-2);font-size:15.5px;}

/* ---------- 入口卡片 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:8px;}
.entry{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.entry:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.entry-media{aspect-ratio:16/9;overflow:hidden;}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.entry:hover .entry-media img{transform:scale(1.04);}
.entry-body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.entry-body h3{font-size:1.2rem;}
.entry-body p{color:var(--text-2);font-size:15px;flex:1;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--green),#0B211D);
  border-radius:var(--r-l);padding:56px 52px;color:var(--white);
  display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;
  box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.1rem);margin-bottom:14px;}
.cta-band p{color:rgba(244,247,245,.76);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--green);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--border);border-radius:10px;
  padding:13px 16px;font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:120px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--mist);box-shadow:0 0 0 3px rgba(127,167,155,.22);
}
.field .err{display:none;margin-top:7px;font-size:13px;color:var(--error);}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:var(--error);}
.field.invalid .err{display:block;}
.form-note{font-size:13px;color:var(--text-3);margin-top:6px;}
.form-feedback{
  display:none;margin-top:18px;padding:14px 18px;border-radius:var(--r-m);font-size:14.5px;
  background:rgba(47,125,92,.1);color:var(--success);border:1px solid rgba(47,125,92,.28);
}
.form-feedback.show{display:block;}
.contact-side{background:var(--card);border:1px solid var(--border);border-radius:var(--r-l);padding:34px 32px;box-shadow:var(--sh-1);}
.contact-side h3{font-size:1.3rem;margin-bottom:16px;}
.contact-side dl{display:grid;gap:16px;margin:0;}
.contact-side dt{font-size:13px;color:var(--text-3);letter-spacing:.04em;}
.contact-side dd{margin:4px 0 0;font-size:16px;color:var(--green);font-weight:600;}
.contact-side .divider{height:1px;background:var(--border);margin:24px 0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--green-deep);color:rgba(244,247,245,.72);padding:76px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px;}
.footer-brand .logo-text strong{font-size:18px;}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(244,247,245,.62);max-width:30em;}
.site-footer h4{color:var(--white);font-size:15px;margin-bottom:18px;font-family:var(--font-sans);letter-spacing:.06em;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14.5px;color:rgba(244,247,245,.72);}
.footer-links a:hover{color:var(--orange);}
.footer-contact{display:grid;gap:14px;font-size:14.5px;}
.footer-contact span{color:rgba(244,247,245,.6);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:space-between;font-size:13.5px;
}
.footer-bottom .tech{color:rgba(244,247,245,.5);}
.to-top{display:inline-flex;align-items:center;gap:8px;color:rgba(244,247,245,.8);}
.to-top:hover{color:var(--orange);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:110;
  display:inline-flex;align-items:center;gap:10px;
  background:var(--orange);color:#fff;font-weight:600;font-size:15px;
  padding:14px 24px;border-radius:var(--r-pill);
  box-shadow:0 16px 36px rgba(217,119,66,.34);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease),background .2s var(--ease);
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:#E28249;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s var(--ease),transform .52s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{padding:0 24px;}
  .split,.split--reverse{grid-template-columns:1fr;gap:36px;}
  .split--reverse .split-media{order:-1;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px;}
}
@media (max-width:992px){
  .nav-menu{
    position:fixed;inset:76px 0 0 0;background:rgba(13,28,25,.98);
    flex-direction:column;align-items:flex-start;gap:0;padding:24px 24px 40px;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .26s var(--ease),transform .26s var(--ease);
    overflow-y:auto;
  }
  .nav-menu.open{opacity:1;transform:none;pointer-events:auto;}
  .nav-menu a{width:100%;padding:16px 4px;border-bottom:1px solid rgba(255,255,255,.1);font-size:16px;}
  .nav-menu a::after{display:none;}
  .nav-menu a.active{color:var(--orange);}
  .nav-toggle{display:flex;}
  .nav-actions .btn{display:none;}
  .nav-actions{margin-left:auto;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .factbar{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr 1fr;}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;}
  .cta-actions{justify-content:flex-start;}
  .form-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .banner{padding:126px 0 62px;}
  .banner-lead{font-size:16px;}
  .logo-text strong{font-size:15px;}
  .logo-text em{display:none;}
  .entry-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .qa-track{padding-left:26px;}
  .qa-item::before{left:-24px;}
  .qa-btn{padding:18px 18px;gap:12px;}
  .qa-a-body{padding:0 18px 20px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    padding:16px 20px;box-shadow:0 -8px 28px rgba(13,28,25,.2);
  }
  .steps li{grid-template-columns:42px 1fr;padding:20px;}
}
@media (max-width:480px){
  .container{padding:0 18px;}
  .banner h1{font-size:1.75rem;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .tag{font-size:12.5px;padding:6px 12px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .btn--inline{width:auto;}
}