/* roulang page: index */
/* ============================================================
   设计变量
   ============================================================ */
:root{
  --brand:#1F5F55;
  --brand-dark:#16463F;
  --brand-soft:rgba(31,95,85,.12);
  --brand-line:rgba(31,95,85,.30);
  --pearl:#EFE6D8;
  --paper:#FAF7F2;
  --amber:#C4693B;
  --amber-dark:#A9552E;
  --kelp:#6B7A4F;
  --ink:#22201D;
  --ink-2:#5A544C;
  --line:#E2D9C9;
  --danger:#B3452F;
  --radius:12px;
  --radius-sm:8px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(34,32,29,.06);
  --shadow-2:0 8px 20px rgba(31,95,85,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --maxw:1200px;
  --sp-section:88px;
}

/* ============================================================
   基础 reset / base
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:4px;
}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;color:var(--ink);}
h1{font-size:clamp(28px,4vw,44px);line-height:1.3;}
h2{font-size:clamp(23px,3vw,30px);line-height:1.4;}
h3{font-size:21px;line-height:1.5;}
p{margin:0;}
button{font-family:var(--font-sans);}
::selection{background:rgba(31,95,85,.18);}

/* ============================================================
   容器
   ============================================================ */
.container{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
}
@media (max-width:640px){
  .container{padding:0 20px;}
}

/* ============================================================
   按钮 / 标签
   ============================================================ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15.5px;
  font-weight:500;
  line-height:1.2;
  border-radius:var(--radius-btn);
  padding:14px 24px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--amber);color:#fff;}
.btn-primary:hover{background:var(--amber-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-secondary:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-onDark{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-onDark:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{padding:10px 18px;font-size:14.5px;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15.5px;
  color:var(--brand);
  border-bottom:1px solid var(--brand-line);
  padding-bottom:2px;
}
.link-arrow:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark);}
.link-onDark{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:rgba(255,255,255,.92);
  border-bottom:1px solid rgba(255,255,255,.45);
  padding-bottom:2px;
  font-size:15.5px;
}
.link-onDark:hover{color:#fff;border-bottom-color:#fff;}

.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  line-height:1.6;
  border-radius:var(--radius-sm);
  padding:3px 10px;
  background:var(--pearl);
  color:var(--ink-2);
}
.tag-brand{background:var(--brand-soft);color:var(--brand);}
.tag-kelp{background:rgba(107,122,79,.14);color:var(--kelp);}
.tag-amber{background:rgba(196,105,59,.14);color:var(--amber-dark);}
.pill{
  display:inline-flex;
  align-items:center;
  font-size:13.5px;
  border-radius:999px;
  padding:6px 14px;
  border:1px solid var(--line);
  color:var(--ink-2);
  background:#fff;
}
.pill-brand{border-color:var(--brand-line);color:var(--brand);background:rgba(31,95,85,.06);}
.pill:hover{border-color:var(--brand);color:var(--brand);}

/* ============================================================
   头部 / 导航
   ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(34,32,29,.07);}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:74px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif);
  font-weight:700;
  font-size:19px;
  color:var(--ink);
  letter-spacing:.02em;
  flex:0 0 auto;
}
.logo svg{width:26px;height:26px;color:var(--brand);}
.logo:hover{color:var(--brand);}
.nav-menu{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-menu a{
  position:relative;
  font-size:15.5px;
  color:var(--ink);
  padding:6px 0;
}
.nav-menu a:hover{color:var(--brand);}
.nav-menu a.is-active{color:var(--brand);font-weight:500;}
.nav-menu a.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.nav-right{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:transparent;
  cursor:pointer;
  position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease,top .22s 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.is-open span:nth-child(1){top:21px;transform:rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){top:21px;transform:rotate(-45deg);}

.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(86vw,352px);
  background:var(--paper);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .28s ease;
  z-index:90;
  padding:22px 22px 40px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;border-bottom:1px solid var(--line);
}
.drawer-head .logo{font-size:17px;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:transparent;cursor:pointer;font-size:18px;color:var(--ink-2);line-height:1;
}
.drawer nav{margin-top:8px;}
.drawer nav a{
  display:block;
  font-size:18px;
  line-height:56px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer nav a:hover,.drawer nav a.is-active{color:var(--brand);}
.drawer-cta{margin-top:24px;}
.drawer-cta .btn{width:100%;}
.drawer-note{
  margin-top:22px;
  font-size:13.5px;
  color:var(--ink-2);
  line-height:1.7;
}
.mask{
  position:fixed;
  inset:0;
  background:rgba(34,32,29,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:80;
}
.mask.is-open{opacity:1;visibility:visible;}
body.nav-locked{overflow:hidden;}

/* ============================================================
   Hero（深色信息面板 + 右侧热度榜）
   ============================================================ */
.hero{
  position:relative;
  background:var(--brand-dark);
  color:#fff;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.jpg");
  background-size:cover;
  background-position:center;
  opacity:.30;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(22,70,63,.72) 0%,rgba(22,70,63,.88) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  gap:44px;
  padding:72px 0 68px;
}
.hero-copy{max-width:660px;}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.06em;
  color:rgba(255,255,255,.85);
  border:1px solid rgba(255,255,255,.34);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:22px;
}
.hero h1{color:#fff;}
.hero-lead{
  margin-top:18px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.85);
  max-width:620px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  margin-top:30px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:32px;
}
.hero-point{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.92);
  border:1px solid rgba(255,255,255,.45);
  border-radius:999px;
  padding:6px 14px;
}
.hero-point i{
  width:6px;height:6px;border-radius:50%;background:#E7A87A;display:block;
}
.rank-panel{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.20);
  border-radius:var(--radius);
  padding:26px 26px 18px;
}
.rank-title{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding-bottom:16px;
  border-bottom:1px solid rgba(255,255,255,.20);
}
.rank-title span:first-child{
  font-family:var(--font-serif);
  font-size:18px;
  color:#fff;
  font-weight:700;
}
.rank-title span:last-child{
  font-size:12.5px;
  color:rgba(255,255,255,.65);
}
.rank-item{
  display:flex;
  align-items:center;
  gap:14px;
  padding:14px 0;
  border-bottom:1px dashed rgba(255,255,255,.18);
}
.rank-item:last-child{border-bottom:0;}
.rank-no{
  font-family:var(--font-serif);
  font-size:15px;
  color:#E7A87A;
  min-width:22px;
}
.rank-info{flex:1 1 auto;min-width:0;}
.rank-name{
  font-size:15px;
  color:#fff;
  line-height:1.5;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.rank-tag{
  font-size:12.5px;
  color:rgba(255,255,255,.62);
  margin-top:2px;
}
.rank-val{
  font-family:var(--font-serif);
  font-size:16px;
  color:#E7A87A;
  flex:0 0 auto;
}
@media (min-width:1024px){
  .hero-inner{
    grid-template-columns:1.05fr .95fr;
    align-items:center;
    padding:96px 0 88px;
    gap:56px;
  }
}

/* ============================================================
   通用板块
   ============================================================ */
.section{padding:var(--sp-section) 0;}
.section--pearl{background:var(--pearl);}
.section--tight{padding:56px 0;}
.section-head{max-width:800px;margin-bottom:38px;}
.sec-eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--amber);
  margin-bottom:12px;
}
.sec-eyebrow::before{
  content:"";
  display:inline-block;
  width:22px;height:1px;
  background:var(--amber);
  vertical-align:middle;
  margin-right:10px;
  transform:translateY(-3px);
}
.lead{
  margin-top:14px;
  color:var(--ink-2);
  font-size:17px;
  line-height:1.85;
}
.rule{
  height:1px;
  background:var(--line);
  border:0;
  margin:0;
}

/* ============================================================
   网格
   ============================================================ */
.grid{display:grid;gap:24px;}
.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
@media (min-width:640px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:1024px){
  .grid-3{grid-template-columns:repeat(3,1fr);}
  .grid-4{grid-template-columns:repeat(4,1fr);}
  .grid{gap:26px;}
}

/* ============================================================
   卡片
   ============================================================ */
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{
  transform:translateY(-2px);
  border-color:var(--brand-line);
  box-shadow:var(--shadow-2);
}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{color:var(--ink-2);font-size:15.5px;line-height:1.8;}

/* 勾选清单卡 */
.check-list{display:grid;gap:20px;}
@media (min-width:640px){.check-list{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.check-list{grid-template-columns:repeat(3,1fr);}}
.check-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.check-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--shadow-2);}
.check-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:14px;
}
.check-box{
  width:20px;height:20px;
  border:1.5px solid var(--brand);
  border-radius:4px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--brand);
  flex:0 0 auto;
}
.check-box svg{width:13px;height:13px;}
.check-no{
  font-family:var(--font-serif);
  font-size:14px;
  color:var(--amber);
}
.check-card h3{font-size:17px;font-family:var(--font-sans);font-weight:700;line-height:1.6;margin-bottom:8px;}
.check-card p{color:var(--ink-2);font-size:15px;line-height:1.8;}

/* 编号要点卡 */
.point-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.point-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--shadow-2);}
.point-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  font-family:var(--font-serif);
  font-size:15px;
  margin-bottom:16px;
}
.point-card h3{font-size:19px;margin-bottom:10px;}

/* ============================================================
   方法步骤时间线
   ============================================================ */
.timeline{display:grid;gap:28px;}
@media (min-width:640px){.timeline{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.timeline{grid-template-columns:repeat(4,1fr);gap:24px;}}
.step{position:relative;padding-top:6px;}
.step-line{
  position:absolute;
  top:22px;left:44px;right:-24px;
  height:1px;
  background:var(--line);
  display:none;
}
@media (min-width:1024px){.step-line{display:block;}}
.step:last-child .step-line{display:none;}
.step-num{
  width:36px;height:36px;
  border-radius:50%;
  background:var(--amber);
  color:#fff;
  font-family:var(--font-serif);
  font-size:15px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  position:relative;
  z-index:1;
}
.step h3{font-size:18px;margin:16px 0 8px;}
.step p{color:var(--ink-2);font-size:15px;line-height:1.8;}
.step-thumb{
  margin-top:16px;
  aspect-ratio:16/10;
  border-radius:var(--radius-sm);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--pearl);
}
.step-thumb img{width:100%;height:100%;object-fit:cover;}

/* ============================================================
   数据概览条
   ============================================================ */
.stats{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
@media (min-width:1024px){.stats{grid-template-columns:repeat(4,1fr);}}
.stat{
  padding:32px 24px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat:nth-child(2n){border-right:0;}
@media (min-width:1024px){
  .stat{border-bottom:0;}
  .stat:nth-child(2n){border-right:1px solid var(--line);}
  .stat:last-child{border-right:0;}
}
.stat-num{
  font-family:var(--font-serif);
  font-size:clamp(30px,4vw,42px);
  line-height:1.1;
  color:var(--amber);
}
.stat-num small{font-size:18px;margin-left:2px;color:var(--amber);}
.stat-label{
  margin-top:10px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.7;
}

/* ============================================================
   证言卡
   ============================================================ */
.quote-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.quote-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--shadow-2);}
.quote-mark{
  font-family:var(--font-serif);
  font-size:46px;
  line-height:.8;
  color:rgba(31,95,85,.22);
}
.quote-text{font-size:16.5px;line-height:1.85;}
.quote-who{
  font-size:13.5px;
  color:var(--ink-2);
  padding-top:14px;
  border-top:1px solid var(--line);
}

/* ============================================================
   适用人群卡
   ============================================================ */
.persona-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.persona-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--shadow-2);}
.persona-icon{
  width:44px;height:44px;
  border-radius:var(--radius-sm);
  background:var(--brand-soft);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.persona-icon svg{width:24px;height:24px;}
.persona-card h3{font-size:18px;margin-bottom:10px;}
.persona-card p{color:var(--ink-2);font-size:15px;line-height:1.8;}

/* ============================================================
   笔记卡（内容列表）
   ============================================================ */
.note-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.note-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--shadow-2);}
.note-thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(90deg,#EFE6D8 0%,#F7F1E7 50%,#EFE6D8 100%);
  background-size:200% 100%;
  animation:thumbShimmer 2.2s linear infinite;
}
.note-thumb img{width:100%;height:100%;object-fit:cover;}
@keyframes thumbShimmer{
  0%{background-position:0 0;}
  100%{background-position:-200% 0;}
}
.note-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.note-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.note-date{font-size:12.5px;color:var(--ink-2);}
.note-card h3{font-size:18.5px;line-height:1.55;}
.note-card h3 a{color:var(--ink);}
.note-card h3 a:hover{color:var(--brand);}
.note-sum{
  color:var(--ink-2);
  font-size:15px;
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.note-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-2);
  display:flex;
  align-items:center;
  justify-content:space-between;
}

/* ============================================================
   专题横向卡
   ============================================================ */
.topic-list{display:grid;gap:22px;}
.topic-card{
  display:grid;
  grid-template-columns:1fr;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.topic-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--shadow-2);}
.topic-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--pearl);
}
.topic-thumb img{width:100%;height:100%;object-fit:cover;}
.topic-body{padding:26px 28px;display:flex;flex-direction:column;gap:12px;justify-content:center;}
.topic-body h3{font-size:20px;}
.topic-body p{color:var(--ink-2);font-size:15.5px;line-height:1.8;}
.topic-meta{font-size:13px;color:var(--ink-2);}
@media (min-width:768px){
  .topic-card{grid-template-columns:240px 1fr;}
  .topic-thumb{aspect-ratio:auto;height:100%;min-height:172px;}
}

/* ============================================================
   进度指标
   ============================================================ */
.metric{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-1);
}
.metric-top{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}
.metric-name{font-size:15.5px;font-weight:500;}
.metric-val{font-family:var(--font-serif);font-size:17px;color:var(--amber);}
.bar{
  height:4px;
  border-radius:4px;
  background:#E7DFD0;
  overflow:hidden;
  margin-bottom:12px;
}
.bar-fill{
  display:block;
  height:100%;
  border-radius:4px;
  background:var(--brand);
}
.metric p{font-size:14px;color:var(--ink-2);line-height:1.7;}

/* ============================================================
   术语卡
   ============================================================ */
.term-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:24px 22px 22px;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.term-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--shadow-2);}
.term-no{
  position:absolute;
  top:-10px;left:20px;
  background:var(--amber);
  color:#fff;
  font-size:12px;
  font-family:var(--font-serif);
  border-radius:var(--radius-sm);
  padding:2px 9px;
}
.term-card h3{font-size:17px;margin:8px 0 10px;}
.term-card p{font-size:15px;color:var(--ink-2);line-height:1.8;}

/* ============================================================
   FAQ
   ============================================================ */
.faq{border-top:1px solid var(--line);}
.faq details{
  border-bottom:1px solid var(--line);
  background:transparent;
}
.faq summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 4px;
  font-size:17px;
  font-family:var(--font-serif);
  font-weight:600;
  cursor:pointer;
  list-style:none;
  color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand);}
.faq-arrow{
  flex:0 0 auto;
  width:18px;height:18px;
  color:var(--brand);
  transition:transform .22s ease;
}
.faq details[open] .faq-arrow{transform:rotate(180deg);}
.faq-answer{
  padding:0 4px 24px;
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.85;
  max-width:820px;
}

/* ============================================================
   订阅表单
   ============================================================ */
.subscribe{
  display:grid;
  gap:32px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:36px;
  box-shadow:var(--shadow-1);
}
@media (min-width:900px){
  .subscribe{grid-template-columns:1fr 1fr;align-items:center;padding:44px;}
}
.subscribe h2{font-size:26px;}
.subscribe p{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.85;}
.field{margin-bottom:6px;}
.field label{
  display:block;
  font-size:14px;
  color:var(--ink-2);
  margin-bottom:8px;
}
.field input{
  width:100%;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  padding:0 14px;
  font-size:15.5px;
  color:var(--ink);
  font-family:var(--font-sans);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:#A9A296;}
.field input:focus{
  border-color:var(--brand);
  outline:none;
  box-shadow:0 0 0 3px rgba(31,95,85,.12);
}
.field.is-error input{border-color:var(--danger);}
.field.is-error input:focus{box-shadow:0 0 0 3px rgba(179,69,47,.12);}
.err-text{
  display:none;
  margin-top:8px;
  font-size:13.5px;
  color:var(--danger);
}
.field.is-error .err-text{display:block;}
.form-row{display:flex;gap:12px;flex-wrap:wrap;}
.form-row .field{flex:1 1 220px;}
.form-actions{margin-top:10px;}
.form-ok{
  display:none;
  margin-top:14px;
  font-size:14px;
  color:var(--brand);
}
.form-ok.is-show{display:block;}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-2);line-height:1.7;}

/* ============================================================
   留言摘要墙
   ============================================================ */
.memo-list{display:grid;gap:14px;}
@media (min-width:640px){.memo-list{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.memo-list{grid-template-columns:repeat(3,1fr);}}
.memo{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:16px 18px;
  font-size:15px;
  color:var(--ink-2);
  line-height:1.75;
  transition:border-color .18s ease,transform .18s ease;
}
.memo:hover{border-color:var(--brand-line);transform:translateY(-2px);}
.memo strong{color:var(--brand);font-weight:500;}

/* ============================================================
   分类入口墙
   ============================================================ */
.cap-wall{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* ============================================================
   终局 CTA 带
   ============================================================ */
.cta-band{
  background:var(--pearl);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:72px 0;
  text-align:center;
}
.cta-band h2{font-size:clamp(24px,3vw,32px);max-width:760px;margin:0 auto;}
.cta-band p{
  margin:18px auto 0;
  max-width:660px;
  color:var(--ink-2);
  font-size:16.5px;
  line-height:1.85;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:20px;
  margin-top:30px;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  background:var(--pearl);
  border-top:1px solid var(--line);
  padding-top:64px;
  color:var(--ink-2);
}
.footer-grid{display:grid;gap:36px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:40px;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:44px;}}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:320px;}
.footer-col h4{
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:16px;
}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14.5px;color:var(--ink-2);}
.footer-col a:hover{color:var(--brand);}
.footer-col p{font-size:14.5px;line-height:1.85;}
.footer-cta{margin-top:16px;}
.footer-bottom{
  margin-top:52px;
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:var(--ink-2);
}

/* ============================================================
   移动端断点微调
   ============================================================ */
@media (max-width:900px){
  .nav-menu{display:none;}
  .nav-right .btn{display:none;}
  .nav-toggle{display:block;}
}
@media (max-width:768px){
  :root{--sp-section:52px;}
  .card,.point-card,.persona-card,.quote-card{padding:22px;}
  .subscribe{padding:26px;}
  .cta-band{padding:56px 0;}
  .stat{padding:24px 18px;}
}
@media (max-width:520px){
  .hero-inner{padding:56px 0 52px;gap:32px;}
  .hero-actions{align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .form-row{flex-direction:column;}
  .rank-panel{padding:20px 20px 12px;}
  .rank-name{white-space:normal;}
}

/* roulang page: category1 */
/* ============================================================
 设计系统（与首页一致）
 ============================================================ */
:root{
 --brand:#1F5F55;
 --brand-dark:#16463F;
 --brand-soft:rgba(31,95,85,.12);
 --brand-line:rgba(31,95,85,.30);
 --pearl:#EFE6D8;
 --paper:#FAF7F2;
 --amber:#C4693B;
 --amber-dark:#A9552E;
 --kelp:#6B7A4F;
 --ink:#22201D;
 --ink-2:#5A544C;
 --line:#E2D9C9;
 --danger:#B3452F;
 --radius:12px;
 --radius-sm:8px;
 --radius-btn:10px;
 --shadow-1:0 1px 2px rgba(34,32,29,.06);
 --shadow-2:0 8px 20px rgba(31,95,85,.10);
 --font-serif:"Noto Serif SC","Source Han Serif SC",serif;
 --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
 --maxw:1200px;
 --sp-section:88px;
}
/* ============================================================
 基础 reset / base
 ============================================================ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 background:var(--paper);
 color:var(--ink);
 font-family:var(--font-sans);
 font-size:17px;
 line-height:1.8;
 -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
 outline:2px solid var(--brand);
 outline-offset:2px;
 border-radius:4px;
}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;margin:0;color:var(--ink);}
h1{font-size:clamp(28px,4vw,42px);line-height:1.3;}
h2{font-size:clamp(22px,2.6vw,31px);line-height:1.4;}
h3{font-size:20px;line-height:1.5;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:var(--font-sans);}
::selection{background:var(--brand-soft);}
/* ============================================================
 容器
 ============================================================ */
.container{
 max-width:var(--maxw);
 margin:0 auto;
 padding:0 32px;
}
/* ============================================================
 按钮 / 标签 / 胶囊
 ============================================================ */
.btn{
 display:inline-flex;
 align-items:center;
 justify-content:center;
 gap:8px;
 font-size:15.5px;
 font-weight:500;
 line-height:1.2;
 border-radius:var(--radius-btn);
 padding:14px 24px;
 border:1px solid transparent;
 cursor:pointer;
 text-align:center;
 transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--amber);color:#fff;}
.btn-primary:hover{background:var(--amber-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-secondary:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-sm{padding:10px 18px;font-size:14.5px;}
.tag{
 display:inline-flex;
 align-items:center;
 font-size:12px;
 line-height:1.6;
 border-radius:var(--radius-sm);
 padding:3px 10px;
 background:var(--pearl);
 color:var(--ink-2);
}
.tag-brand{background:var(--brand-soft);color:var(--brand);}
.tag-kelp{background:rgba(107,122,79,.14);color:var(--kelp);}
.tag-amber{background:rgba(196,105,59,.14);color:var(--amber-dark);}
.pill{
 display:inline-flex;
 align-items:center;
 font-size:14px;
 border-radius:999px;
 padding:7px 16px;
 border:1px solid var(--line);
 color:var(--ink-2);
 background:#fff;
 transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.pill:hover{border-color:var(--brand);color:var(--brand);}
.pill-brand{border-color:var(--brand-line);color:var(--brand);background:rgba(31,95,85,.06);}
.pill-brand.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}
.pill.is-muted{color:#8C857B;background:transparent;border-style:dashed;cursor:default;}
/* ============================================================
 头部 / 导航
 ============================================================ */
.site-header{
 position:sticky;
 top:0;
 z-index:60;
 background:var(--paper);
 border-bottom:1px solid var(--line);
 transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(34,32,29,.07);}
.nav{
 display:flex;
 align-items:center;
 justify-content:space-between;
 gap:20px;
 height:74px;
}
.logo{
 display:inline-flex;
 align-items:center;
 gap:10px;
 font-family:var(--font-serif);
 font-weight:700;
 font-size:19px;
 color:var(--ink);
 letter-spacing:.02em;
 flex:0 0 auto;
}
.logo svg{width:26px;height:26px;color:var(--brand);}
.logo:hover{color:var(--brand);}
.nav-menu{display:flex;align-items:center;gap:30px;}
.nav-menu a{position:relative;font-size:15.5px;color:var(--ink);padding:6px 0;}
.nav-menu a:hover{color:var(--brand);}
.nav-menu a.is-active{color:var(--brand);font-weight:500;}
.nav-menu a.is-active::after{
 content:"";
 position:absolute;
 left:0;right:0;bottom:-2px;
 height:2px;
 border-radius:2px;
 background:var(--brand);
}
.nav-right{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.nav-toggle{
 display:none;
 width:44px;height:44px;
 border:1px solid var(--line);
 border-radius:var(--radius-sm);
 background:transparent;
 cursor:pointer;
 position:relative;
}
.nav-toggle span{
 position:absolute;left:11px;right:11px;height:2px;background:var(--ink);border-radius:2px;
 transition:transform .22s ease,opacity .22s ease,top .22s 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.is-open span:nth-child(1){top:21px;transform:rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){top:21px;transform:rotate(-45deg);}
/* 移动端抽屉 */
.drawer{
 position:fixed;
 top:0;right:0;bottom:0;
 width:min(86vw,352px);
 background:var(--paper);
 border-left:1px solid var(--line);
 transform:translateX(102%);
 transition:transform .28s ease;
 z-index:90;
 padding:22px 22px 40px;
 overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
 display:flex;align-items:center;justify-content:space-between;
 padding-bottom:16px;border-bottom:1px solid var(--line);
}
.drawer-head .logo{font-size:17px;}
.drawer-close{
 width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius-sm);
 background:transparent;cursor:pointer;font-size:20px;color:var(--ink-2);line-height:1;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer-nav{margin:8px 0 22px;}
.drawer-nav a{
 display:block;
 font-size:18px;
 line-height:56px;
 color:var(--ink);
 border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--brand);}
.drawer-cta{width:100%;}
.drawer-mask{
 position:fixed;inset:0;
 background:rgba(34,32,29,.45);
 opacity:0;
 transition:opacity .24s ease;
 z-index:80;
}
.drawer-mask.is-visible{opacity:1;}
/* ============================================================
 板块通用
 ============================================================ */
.section{padding:var(--sp-section) 0;}
.section-tight{padding:52px 0;}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head .kicker{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13.5px;color:var(--brand);letter-spacing:.04em;margin-bottom:10px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--ink-2);font-size:16.5px;}
.divider-shell{border-top:1px solid var(--line);}
/* ============================================================
 分类页头（矮版）
 ============================================================ */
.page-head{
 padding:32px 0 40px;
 border-bottom:1px solid var(--line);
 background:linear-gradient(180deg,rgba(31,95,85,.06),rgba(250,247,242,0) 72%);
}
.breadcrumb{
 display:flex;flex-wrap:wrap;align-items:center;gap:8px;
 font-size:14px;color:var(--ink-2);margin-bottom:18px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C9BFAD;}
.page-head-grid{
 display:grid;
 grid-template-columns:minmax(0,1fr) 300px;
 gap:40px;
 align-items:center;
}
.page-head h1{margin:14px 0 14px;}
.page-head .lead{color:var(--ink-2);font-size:16.5px;max-width:64ch;}
.page-head-figure{
 height:192px;
 border-radius:var(--radius);
 overflow:hidden;
 border:1px solid var(--line);
 background:var(--pearl);
}
.page-head-figure img{width:100%;height:100%;object-fit:cover;}
.metrics{
 display:flex;flex-wrap:wrap;gap:34px;
 margin-top:26px;padding-top:22px;border-top:1px solid var(--line);
}
.metric{display:flex;flex-direction:column;gap:2px;}
.metric .num{font-family:var(--font-serif);font-size:26px;line-height:1.2;color:var(--amber);}
.metric .label{font-size:13.5px;color:var(--ink-2);}
/* ============================================================
 筛选 / 排序条
 ============================================================ */
.filter-section{padding:20px 0 0;}
.filter-bar{
 display:flex;flex-wrap:wrap;align-items:center;gap:10px;
 padding-bottom:18px;border-bottom:1px solid var(--line);
}
.filter-label{font-size:14px;color:var(--ink-2);margin-right:4px;}
.chip{
 display:inline-flex;align-items:center;
 font-size:14px;border-radius:var(--radius-sm);
 padding:7px 14px;border:1px solid var(--line);
 color:var(--ink-2);background:#fff;
 transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.chip:hover{border-color:var(--brand-line);color:var(--brand);}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}
/* ============================================================
 列表主体（行式卡片）
 ============================================================ */
.post-list{display:flex;flex-direction:column;}
.post-item{
 display:grid;
 grid-template-columns:240px minmax(0,1fr);
 gap:26px;
 padding:26px 0;
 border-bottom:1px solid var(--line);
}
.post-thumb{
 display:block;
 aspect-ratio:16/10;
 border-radius:var(--radius);
 overflow:hidden;
 border:1px solid var(--line);
 background:var(--pearl);
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.post-item:hover .post-thumb img{transform:scale(1.03);}
.post-body{min-width:0;}
.post-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;}
.post-title{font-size:20px;margin:0 0 8px;}
.post-title a{color:var(--ink);}
.post-item:hover .post-title a{color:var(--brand);}
.post-excerpt{
 color:var(--ink-2);
 font-size:15.8px;
 line-height:1.75;
 margin:0 0 12px;
 display:-webkit-box;
 -webkit-line-clamp:2;
 -webkit-box-orient:vertical;
 overflow:hidden;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13.5px;color:var(--ink-2);}
.post-meta span{display:inline-flex;align-items:center;}
.post-meta span + span::before{
 content:"";
 width:4px;height:4px;border-radius:50%;
 background:var(--line);
 margin-right:16px;
}
.list-more{display:flex;justify-content:center;padding-top:34px;}
/* ============================================================
 常见问题（原生折叠）
 ============================================================ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
 display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
 padding:20px 0;cursor:pointer;
 font-family:var(--font-serif);font-size:18px;font-weight:700;
 color:var(--ink);list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-arrow{flex:0 0 auto;width:20px;height:20px;position:relative;margin-top:7px;}
.faq-arrow::before,.faq-arrow::after{
 content:"";position:absolute;top:9px;width:11px;height:2px;
 border-radius:2px;background:var(--brand);
 transition:transform .22s ease;
}
.faq-arrow::before{left:1px;transform:rotate(45deg);}
.faq-arrow::after{right:1px;transform:rotate(-45deg);}
.faq-item[open] .faq-arrow::before{transform:rotate(-45deg);}
.faq-item[open] .faq-arrow::after{transform:rotate(45deg);}
.faq-body{padding:0 0 22px;color:var(--ink-2);font-size:16px;max-width:76ch;}
/* ============================================================
 要点速查（编号短条）
 ============================================================ */
.note-list{border-top:1px solid var(--line);}
.note-list li{
 display:grid;
 grid-template-columns:56px minmax(0,1fr);
 gap:18px;
 padding:20px 0;
 border-bottom:1px solid var(--line);
}
.note-num{font-family:var(--font-serif);font-size:20px;color:var(--amber);line-height:1.5;}
.note-list h3{font-size:18px;margin-bottom:6px;}
.note-list p{color:var(--ink-2);font-size:15.6px;margin:0;}
/* ============================================================
 相关深度阅读
 ============================================================ */
.read-grid{
 display:grid;
 grid-template-columns:repeat(3,minmax(0,1fr));
 gap:24px;
}
.read-card{
 border:1px solid var(--line);
 border-radius:var(--radius);
 background:#fff;
 overflow:hidden;
 transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.read-card:hover{
 transform:translateY(-2px);
 border-color:var(--brand-line);
 box-shadow:var(--shadow-2);
}
.read-card .thumb{display:block;aspect-ratio:16/10;background:var(--pearl);}
.read-card .thumb img{width:100%;height:100%;object-fit:cover;}
.read-body{padding:18px 20px 22px;}
.read-body h3{font-size:18px;margin:10px 0 8px;}
.read-body h3 a{color:var(--ink);}
.read-card:hover h3 a{color:var(--brand);}
.read-body p{color:var(--ink-2);font-size:15.4px;line-height:1.75;margin:0;}
/* ============================================================
 分类入口板块
 ============================================================ */
.channel-block{
 background:var(--pearl);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:32px 32px 34px;
}
.channel-block h2{margin-bottom:12px;}
.channel-block p{color:var(--ink-2);font-size:16px;max-width:70ch;}
.channel-rows{display:flex;flex-direction:column;gap:14px;margin-top:22px;}
.channel-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.channel-row .row-label{width:92px;flex:0 0 auto;font-size:14px;color:var(--ink-2);}
/* ============================================================
 订阅 / 收藏
 ============================================================ */
.subscribe-grid{
 display:grid;
 grid-template-columns:1.05fr .95fr;
 gap:40px;
 background:var(--pearl);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:40px 38px;
}
.subscribe-grid h2{margin-bottom:14px;}
.subscribe-grid p{color:var(--ink-2);}
.subscribe-points{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.subscribe-points li{position:relative;padding-left:22px;font-size:15.6px;color:var(--ink-2);}
.subscribe-points li::before{
 content:"";
 position:absolute;left:0;top:11px;
 width:8px;height:8px;border-radius:2px;
 background:var(--brand-line);
}
.subscribe-form{
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:26px 24px;
}
.subscribe-form label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;}
.subscribe-form input{
 width:100%;
 height:44px;
 border:1px solid var(--line);
 border-radius:var(--radius-btn);
 padding:0 14px;
 font-size:15.5px;
 font-family:var(--font-sans);
 background:var(--paper);
 color:var(--ink);
 transition:border-color .18s ease,box-shadow .18s ease;
}
.subscribe-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}
.subscribe-form input.is-invalid{border-color:var(--danger);box-shadow:0 0 0 3px rgba(179,69,47,.12);}
.field-error{color:var(--danger);font-size:13.5px;margin:8px 0 0;}
.form-hint{font-size:13.5px;color:var(--ink-2);margin:12px 0 0;}
.form-done{color:var(--brand);font-size:14.5px;margin:12px 0 0;}
.subscribe-form .btn{width:100%;margin-top:16px;}
/* ============================================================
 空状态
 ============================================================ */
.empty-state{
 border:1px dashed var(--line);
 border-radius:var(--radius);
 padding:34px 24px;
 text-align:center;
 color:var(--ink-2);
 font-size:15.5px;
 background:#fff;
}
.empty-state a{color:var(--brand);}
/* ============================================================
 页脚
 ============================================================ */
.site-footer{
 background:var(--pearl);
 border-top:1px solid var(--line);
 color:var(--ink-2);
 font-size:15px;
 padding:56px 0 0;
}
.footer-grid{
 display:grid;
 grid-template-columns:1.6fr 1fr 1fr 1.2fr;
 gap:36px;
 padding-bottom:44px;
}
.footer-brand .logo{color:var(--ink);margin-bottom:14px;}
.footer-brand p{font-size:14.6px;line-height:1.8;margin:0;max-width:36ch;}
.footer-col h4{font-family:var(--font-serif);font-size:16px;color:var(--ink);margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:var(--ink-2);font-size:14.6px;}
.footer-col a:hover{color:var(--brand);}
.footer-col p{font-size:14.6px;line-height:1.8;}
.footer-cta{margin-top:16px;}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 border-top:1px solid var(--line);
 padding:18px 0 22px;
 font-size:13.5px;
}
/* ============================================================
 响应式
 ============================================================ */
@media (max-width:1024px){
 .page-head-grid{grid-template-columns:minmax(0,1fr) 240px;gap:28px;}
 .read-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
 :root{--sp-section:52px;}
 .container{padding:0 20px;}
 .nav{height:64px;}
 .nav-menu{display:none;}
 .nav-toggle{display:inline-block;}
 .nav-cta{display:none;}
 .page-head{padding:24px 0 32px;}
 .page-head-grid{grid-template-columns:1fr;gap:24px;}
 .page-head-figure{height:180px;order:-1;}
 .post-item{grid-template-columns:1fr;gap:16px;padding:22px 0;}
 .post-thumb{aspect-ratio:16/9;}
 .read-grid{grid-template-columns:1fr;}
 .subscribe-grid{grid-template-columns:1fr;gap:26px;padding:30px 24px;}
 .channel-block{padding:26px 22px 28px;}
 .channel-row .row-label{width:100%;line-height:1.6;}
 .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
 .note-list li{grid-template-columns:44px minmax(0,1fr);gap:14px;}
}
@media (max-width:520px){
 .container{padding:0 18px;}
 h1{font-size:26px;}
 .metrics{gap:22px;}
 .metric .num{font-size:23px;}
 .post-title{font-size:18.5px;}
 .faq-item summary{font-size:16.5px;}
}