/* roulang page: index */
:root{
  --ink:#1A1C1A;--ink-2:#5A6058;--ink-3:#8C9189;
  --bamboo:#2F6B5E;--bamboo-dark:#224F46;--bamboo-soft:#E7EFE9;
  --cinnabar:#C4553B;--cinnabar-light:#D2603A;
  --paper:#FDFBF6;--rice:#F7F3EA;--line:#E3DDD0;--line-2:#CFC7B6;
  --radius:14px;--radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(26,28,26,.05);
  --shadow-md:0 10px 28px rgba(26,28,26,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{margin:0;background:var(--rice);color:var(--ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;font-size:16px;line-height:1.8;letter-spacing:0;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-0.01em;line-height:1.35;}
p{margin:0;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:1024px){.wrap{padding-left:40px;padding-right:40px;}}
.site-header{position:sticky;top:0;z-index:60;background:rgba(253,251,246,.92);border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(6px);transition:box-shadow .2s ease;}
.site-header.scrolled{box-shadow:0 4px 18px rgba(26,28,26,.08);}
.nav-inner{display:flex;align-items:center;gap:18px;height:56px;}
@media(min-width:1024px){.nav-inner{height:64px;gap:26px;}}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px;color:var(--ink);transition:color .18s ease;white-space:nowrap;}
.logo:hover{color:var(--bamboo);}
.logo svg{width:22px;height:22px;color:var(--bamboo);flex:none;}
.nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:6px 2px;transition:color .18s ease;white-space:nowrap;}
.nav-link:hover{color:var(--bamboo);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--cinnabar);border-radius:2px;}
.nav-search{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:7px 12px;transition:border-color .18s ease,box-shadow .18s ease;}
.nav-search:focus-within{border-color:var(--bamboo);box-shadow:0 0 0 3px rgba(47,107,94,.12);}
.nav-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search svg{width:16px;height:16px;color:var(--ink-3);flex:none;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-sm);font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .16s ease;text-align:center;}
.btn:focus-visible{outline:2px solid var(--bamboo);outline-offset:2px;}
.btn-lg{height:48px;padding:0 24px;font-size:16px;}
.btn-md{height:40px;padding:0 18px;font-size:15px;}
.btn-sm{height:32px;padding:0 14px;font-size:13px;}
.btn-primary{background:var(--bamboo);color:#fff;}
.btn-primary:hover{background:var(--bamboo-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(34,79,70,.22);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;color:var(--bamboo);border-color:var(--bamboo);}
.btn-outline:hover{background:var(--bamboo-soft);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--line-2);color:var(--ink);background:var(--paper);}
.btn-cinnabar{background:var(--cinnabar);color:#fff;}
.btn-cinnabar:hover{background:var(--cinnabar-light);transform:translateY(-1px);box-shadow:0 8px 20px rgba(196,85,59,.24);}
.btn-light{background:transparent;color:#F4F1E8;border-color:rgba(244,241,232,.6);}
.btn-light:hover{background:rgba(244,241,232,.14);}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;}
.card-hover:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--line-2);}
.badge{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1;}
.badge-solid{background:var(--bamboo);color:#fff;}
.badge-soft{background:var(--bamboo-soft);color:var(--bamboo);}
.badge-line{border:1px solid var(--cinnabar);color:var(--cinnabar);}
.section{padding-top:56px;padding-bottom:56px;}
@media(min-width:1024px){.section{padding-top:96px;padding-bottom:96px;}}
.bg-rice{background:var(--rice);}
.bg-paper{background:var(--paper);}
.bg-soft{background:var(--bamboo-soft);}
.bg-ink{background:var(--ink);}
.title-with-rule{display:inline-block;position:relative;padding-bottom:12px;font-size:28px;font-weight:700;}
@media(min-width:1024px){.title-with-rule{font-size:34px;}}
.title-with-rule::after{content:"";position:absolute;left:0;bottom:0;width:44px;height:3px;border-radius:2px;background:var(--cinnabar);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--bamboo);font-weight:600;letter-spacing:.08em;}
.seal{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border:1px solid var(--cinnabar);border-radius:4px;color:var(--cinnabar);font-size:12px;font-weight:600;}
.lead{color:var(--ink-2);font-size:16px;line-height:1.9;}
.lead-sm{color:var(--ink-2);font-size:14px;line-height:1.8;}
.hero{position:relative;overflow:hidden;background:var(--rice);}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(680px 340px at 88% 4%,rgba(47,107,94,.07),transparent 70%);pointer-events:none;}
.hero-frame{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md);}
.hero-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-frame::after{content:"";position:absolute;inset:0;border-radius:16px;box-shadow:inset 0 0 0 1px rgba(196,85,59,.35);pointer-events:none;}
.float-card{position:relative;margin-top:-56px;margin-left:18px;margin-right:18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-md);padding:16px 18px;}
@media(min-width:768px){.float-card{margin-left:-32px;margin-right:32px;}}
.hot-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 0;font-size:14px;border-bottom:1px dashed var(--line);}
.hot-row:last-child{border-bottom:0;}
.dl-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:all .2s ease;display:flex;flex-direction:column;gap:10px;}
.dl-card:hover{border-color:var(--line-2);box-shadow:var(--shadow-md);transform:translateY(-3px);}
.dl-icon{width:42px;height:42px;border-radius:12px;background:var(--bamboo-soft);display:flex;align-items:center;justify-content:center;color:var(--bamboo);}
.dl-icon svg{width:22px;height:22px;}
.board-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:all .2s ease;}
.board-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--line-2);}
.board-card.soft{background:var(--bamboo-soft);}
.num-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);}
.num{font-size:36px;font-weight:700;color:var(--cinnabar);line-height:1;}
.step-dot{width:44px;height:44px;border-radius:50%;border:1px solid var(--bamboo);color:var(--cinnabar);display:flex;align-items:center;justify-content:center;font-weight:700;background:var(--paper);}
.topic-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:all .2s ease;}
.topic-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--line-2);}
.topic-card.dark{background:var(--ink);border-color:var(--ink);color:#EDE9DE;}
.topic-card.dark h3,.topic-card.dark .t-meta{color:#EDE9DE;}
.topic-card.dark .t-desc{color:#B9BBAF;}
.avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;background:var(--bamboo-soft);}
.news-row{display:block;padding:16px 0;border-bottom:1px solid var(--line);transition:background .18s ease;}
.news-row:hover{background:#F1F5F1;}
.news-row:hover h3{color:var(--bamboo);}
.news-thumb{width:104px;height:78px;border-radius:10px;object-fit:cover;background:var(--bamboo-soft);flex:none;}
@media(min-width:768px){.news-thumb{width:150px;height:104px;}}
.tag{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;background:var(--bamboo-soft);color:var(--bamboo);font-size:14px;transition:all .18s ease;}
.tag:hover{background:var(--bamboo);color:#fff;}
.tag:focus-visible{outline:2px solid var(--bamboo);outline-offset:2px;}
.partner{display:flex;align-items:center;justify-content:center;height:64px;border-radius:var(--radius-sm);border:1px solid var(--line);color:var(--ink-3);font-size:14px;letter-spacing:.04em;background:var(--paper);transition:all .18s ease;}
.partner:hover{color:var(--bamboo);border-color:var(--bamboo);background:var(--bamboo-soft);}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);overflow:hidden;transition:border-color .18s ease;}
.faq-item[open]{border-color:var(--bamboo);background:#F4F8F4;}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;font-weight:600;font-size:16px;display:flex;align-items:center;justify-content:space-between;gap:14px;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--bamboo);font-size:20px;line-height:1;transition:transform .2s ease;}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:focus-visible{outline:2px solid var(--bamboo);outline-offset:-2px;}
.faq-body{padding:0 20px 18px;border-left:3px solid var(--bamboo);margin-left:20px;color:var(--ink-2);font-size:15px;}
.form-input{height:48px;width:100%;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;padding:0 16px;color:var(--ink);outline:0;transition:border-color .18s ease,box-shadow .18s ease;}
.form-input::placeholder{color:var(--ink-3);}
.form-input:focus{border-color:var(--bamboo);box-shadow:0 0 0 3px rgba(47,107,94,.14);}
.site-footer{background:var(--ink);color:#E9E4D8;}
.site-footer a{color:#E9E4D8;transition:color .18s ease;}
.site-footer a:hover{color:var(--cinnabar);}
.footer-title{font-size:15px;font-weight:600;color:#F5F1E7;margin-bottom:14px;}
.footer-line{border-top:1px solid rgba(233,228,216,.16);}
.compare-table{width:100%;border-collapse:collapse;font-size:14px;}
.compare-table th,.compare-table td{padding:14px 12px;text-align:center;border-bottom:1px solid var(--line);}
.compare-table th:first-child,.compare-table td:first-child{text-align:left;color:var(--ink-2);}
.compare-table thead th{font-size:15px;color:var(--ink);font-weight:600;background:var(--bamboo-soft);}
.dot-yes{color:var(--bamboo);font-weight:700;}
.dot-no{color:var(--ink-3);}
.drawer{display:none;}
.drawer.open{display:block;}
.drawer a{display:block;padding:12px 4px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2);}
.drawer a:hover{color:var(--bamboo);}
.drawer a.active{color:var(--ink);font-weight:600;}
.vertical-deco{writing-mode:vertical-rl;letter-spacing:.5em;color:var(--ink-3);font-size:12px;opacity:.7;}
.hero-scroll{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px;}
.hero-scroll::-webkit-scrollbar{height:4px;}
.hero-scroll::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:4px;}

/* roulang page: category1 */
:root{
  --ink:#1A1C1A;--ink-2:#5A6058;--ink-3:#8C9189;
  --bamboo:#2F6B5E;--bamboo-dark:#224F46;--bamboo-soft:#E7EFE9;
  --cinnabar:#C4553B;--cinnabar-light:#D2603A;
  --paper:#FDFBF6;--rice:#F7F3EA;--line:#E3DDD0;--line-2:#CFC7B6;
  --radius:14px;--radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(26,28,26,.05);
  --shadow-md:0 10px 28px rgba(26,28,26,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;background:var(--rice);color:var(--ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;font-size:16px;line-height:1.8;letter-spacing:0;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1024px){.wrap{padding-left:40px;padding-right:40px;}}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(253,251,246,.92);border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(6px);transition:box-shadow .2s ease;}
.site-header.scrolled{box-shadow:0 4px 18px rgba(26,28,26,.08);}
.nav-inner{display:flex;align-items:center;gap:16px;height:56px;}
@media (min-width:1024px){.nav-inner{height:64px;gap:26px;}}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px;color:var(--ink);transition:color .18s ease;white-space:nowrap;}
.logo:hover{color:var(--bamboo);}
.logo svg{width:22px;height:22px;color:var(--bamboo);flex:none;}
.nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:6px 2px;transition:color .18s ease;white-space:nowrap;}
.nav-link:hover{color:var(--bamboo);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--cinnabar);border-radius:2px;}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:7px 12px;transition:border-color .18s ease,box-shadow .18s ease;width:200px;}
.nav-search:focus-within{border-color:var(--bamboo);box-shadow:0 0 0 3px rgba(47,107,94,.12);}
.nav-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search svg{width:16px;height:16px;color:var(--ink-3);flex:none;}
.icon-btn{display:none;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;transition:all .16s ease;}
.icon-btn:hover{color:var(--bamboo);border-color:var(--line-2);}
.icon-btn:focus-visible{outline:2px solid var(--bamboo);outline-offset:2px;}
@media (max-width:1023px){.icon-btn{display:inline-flex;}}
.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--paper);}
.mobile-menu.open{display:block;}
.mobile-menu .inner{padding:16px 0 22px;display:flex;flex-direction:column;gap:12px;}
.mobile-menu a.m-link{padding:8px 2px;font-size:15px;color:var(--ink-2);border-bottom:1px dashed var(--line);}
.mobile-menu a.m-link.active{color:var(--bamboo);font-weight:600;}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-sm);font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .16s ease;text-align:center;}
.btn:focus-visible{outline:2px solid var(--bamboo);outline-offset:2px;}
.btn-lg{height:48px;padding:0 24px;font-size:16px;}
.btn-md{height:40px;padding:0 18px;font-size:15px;}
.btn-sm{height:32px;padding:0 14px;font-size:13px;}
.btn-primary{background:var(--bamboo);color:#fff;}
.btn-primary:hover{background:var(--bamboo-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(34,79,70,.22);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;color:var(--bamboo);border-color:var(--bamboo);}
.btn-outline:hover{background:var(--bamboo-soft);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--line-2);color:var(--ink);background:var(--paper);}
.btn-cinnabar{background:var(--cinnabar);color:#fff;}
.btn-cinnabar:hover{background:var(--cinnabar-light);transform:translateY(-1px);box-shadow:0 8px 20px rgba(196,85,59,.24);}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* badge */
.badge{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1;}
.badge-solid{background:var(--bamboo);color:#fff;}
.badge-soft{background:var(--bamboo-soft);color:var(--bamboo);}
.badge-line{border:1px solid var(--cinnabar);color:var(--cinnabar);}

/* section 基础 */
.section{padding-top:56px;padding-bottom:56px;}
@media (min-width:1024px){.section{padding-top:88px;padding-bottom:88px;}}
.section-head{max-width:680px;margin-bottom:28px;}
@media (min-width:1024px){.section-head{margin-bottom:40px;}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--bamboo);font-weight:600;letter-spacing:.08em;}
.title-with-rule{display:inline-block;position:relative;padding-bottom:12px;font-size:26px;font-weight:700;line-height:1.4;}
@media (min-width:1024px){.title-with-rule{font-size:32px;}}
.title-with-rule::after{content:"";position:absolute;left:0;bottom:0;width:44px;height:3px;border-radius:2px;background:var(--cinnabar);}
.lead{color:var(--ink-2);font-size:16px;line-height:1.9;}

/* 分类头部 */
.cat-hero{position:relative;background:var(--bamboo-soft);border-bottom:1px solid var(--line);padding:36px 0 40px;overflow:hidden;}
@media (min-width:1024px){.cat-hero{padding:56px 0 60px;}}
.cat-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(520px 260px at 92% 0%,rgba(47,107,94,.10),transparent 72%);pointer-events:none;}
.cat-hero-grid{position:relative;display:grid;gap:28px;}
@media (min-width:1024px){.cat-hero-grid{grid-template-columns:1.35fr .85fr;align-items:end;gap:48px;}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:14px;}
.crumb a:hover{color:var(--bamboo);}
.crumb .sep{color:var(--line-2);}
.crumb .current{color:var(--ink);}
.cat-title{font-size:30px;font-weight:700;line-height:1.32;}
@media (min-width:768px){.cat-title{font-size:38px;}}
@media (min-width:1024px){.cat-title{font-size:42px;}}
.cat-lead{margin-top:14px;color:var(--ink-2);font-size:15px;line-height:1.9;max-width:620px;}
.cat-stats{display:grid;gap:12px;margin-top:24px;grid-template-columns:1fr;}
@media (min-width:640px){.cat-stats{grid-template-columns:repeat(3,1fr);gap:16px;}}
.cat-stat{background:rgba(253,251,246,.72);border:1px solid rgba(207,199,182,.7);border-radius:var(--radius-sm);padding:12px 14px;}
.cat-stat h3{font-size:13px;font-weight:600;color:var(--bamboo);letter-spacing:.02em;}
.cat-stat p{font-size:13px;color:var(--ink-2);line-height:1.7;margin-top:2px;}
.cat-media{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow-md);max-height:240px;}
.cat-media img{width:100%;height:240px;object-fit:cover;}
.cat-media::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(196,85,59,.28);border-radius:14px;pointer-events:none;}

/* 场景卡 */
.scene-grid{display:grid;gap:18px;grid-template-columns:1fr;}
@media (min-width:640px){.scene-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.scene-grid{grid-template-columns:repeat(4,1fr);}}
.scene-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px;display:flex;flex-direction:column;gap:8px;transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;}
.scene-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--line-2);}
.scene-icon{width:38px;height:38px;border-radius:10px;background:var(--bamboo-soft);color:var(--bamboo);display:flex;align-items:center;justify-content:center;}
.scene-icon svg{width:20px;height:20px;}
.scene-card h3{font-size:17px;font-weight:600;}
.scene-card p{font-size:14px;color:var(--ink-2);line-height:1.8;}

/* 筛选条 */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between;padding:14px 16px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:22px;}
.filter-chips{display:flex;flex-wrap:wrap;gap:8px;}
.filter-chip{height:32px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:13px;font-weight:500;cursor:pointer;transition:all .16s ease;}
.filter-chip:hover{border-color:var(--bamboo);color:var(--bamboo);background:var(--bamboo-soft);}
.filter-chip:focus-visible{outline:2px solid var(--bamboo);outline-offset:2px;}
.filter-chip.active{background:var(--bamboo);border-color:var(--bamboo);color:#fff;}
.sort-select{height:32px;border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:13px;padding:0 10px;cursor:pointer;transition:border-color .16s ease,box-shadow .16s ease;}
.sort-select:focus{outline:0;border-color:var(--bamboo);box-shadow:0 0 0 3px rgba(47,107,94,.12);}

/* 列表行 */
.post-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;}
.post-row{display:grid;grid-template-columns:1fr;gap:12px;padding:16px;border-bottom:1px solid var(--line);transition:background .18s ease;}
.post-row:last-child{border-bottom:0;}
.post-row:hover{background:#F1F5F1;}
@media (min-width:640px){.post-row{grid-template-columns:160px 1fr;gap:18px;align-items:start;padding:18px 20px;}}
.post-thumb{display:block;border-radius:12px;overflow:hidden;background:var(--bamboo-soft);}
.post-thumb img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .3s ease;}
.post-row:hover .post-thumb img{transform:scale(1.03);}
@media (max-width:639px){.post-thumb img{aspect-ratio:16/6;}}
.post-meta-top{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:6px;}
.post-time{font-size:13px;color:var(--ink-3);}
.post-title{font-size:18px;font-weight:600;line-height:1.55;}
.post-title a{transition:color .18s ease;}
.post-row:hover .post-title a{color:var(--bamboo);}
.post-desc{margin-top:6px;font-size:14px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-more{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:13px;color:var(--bamboo);font-weight:600;}
.post-more:hover{color:var(--cinnabar);}
.empty-state{padding:48px 20px;text-align:center;background:var(--paper);}
.empty-state .empty-icon{width:52px;height:52px;margin:0 auto 14px;border-radius:14px;background:var(--bamboo-soft);color:var(--bamboo);display:flex;align-items:center;justify-content:center;}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:16px;}

/* 子话题 */
.subtopic-grid{display:grid;gap:12px;grid-template-columns:repeat(2,1fr);}
@media (min-width:768px){.subtopic-grid{grid-template-columns:repeat(4,1fr);}}
.subtopic-pill{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 14px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-sm);font-size:14px;color:var(--ink-2);transition:all .18s ease;}
.subtopic-pill:hover{border-color:var(--bamboo);color:var(--bamboo);background:var(--bamboo-soft);}
.subtopic-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--cinnabar);flex:none;}

/* 精华推荐 */
.feature-grid{display:grid;gap:18px;grid-template-columns:1fr;}
@media (min-width:1024px){.feature-grid{grid-template-columns:1.25fr 1fr;}}
.feature-main{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:300px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.feature-main .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,28,26,.05) 20%,rgba(26,28,26,.82) 100%);}
.feature-main .inner{position:relative;padding:22px;color:#F5F1E7;}
.feature-main h3{font-size:20px;font-weight:700;line-height:1.5;}
.feature-main p{margin-top:8px;font-size:14px;line-height:1.8;color:#D8D5C9;}
.feature-side{display:grid;gap:18px;grid-template-rows:1fr 1fr;}
.feature-small{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:20px;display:flex;flex-direction:column;gap:8px;transition:all .2s ease;}
.feature-small:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--line-2);}
.feature-small h3{font-size:17px;font-weight:600;line-height:1.5;}
.feature-small p{font-size:14px;color:var(--ink-2);line-height:1.8;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .18s ease;}
.faq-item[open]{border-color:var(--line-2);border-left:3px solid var(--bamboo);background:#FBFDFA;}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 20px;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;}
.faq-q::-webkit-details-marker{display:none;}
.faq-q:hover{color:var(--bamboo);}
.faq-q:focus-visible{outline:2px solid var(--bamboo);outline-offset:-4px;}
.faq-q .arrow{width:18px;height:18px;flex:none;color:var(--bamboo);transition:transform .2s ease;}
.faq-item[open] .faq-q .arrow{transform:rotate(180deg);}
.faq-a{padding:0 20px 18px;font-size:15px;color:var(--ink-2);line-height:1.9;}

/* 专题条 */
.topic-strip{display:grid;gap:14px;grid-template-columns:1fr;}
@media (min-width:768px){.topic-strip{grid-template-columns:repeat(3,1fr);}}
.topic-bar{display:flex;align-items:center;gap:14px;padding:16px 18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:all .2s ease;}
.topic-bar:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--line-2);}
.topic-bar .bar{width:4px;height:38px;border-radius:2px;flex:none;background:var(--bamboo);}
.topic-bar:nth-child(2) .bar{background:var(--cinnabar);}
.topic-bar:nth-child(3) .bar{background:#7FA08A;}
.topic-bar h3{font-size:16px;font-weight:600;}
.topic-bar span{font-size:13px;color:var(--ink-3);}

/* 下载 */
.dl-grid{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:768px){.dl-grid{grid-template-columns:repeat(3,1fr);}}
.dl-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px;display:flex;flex-direction:column;gap:10px;transition:all .2s ease;}
.dl-card:hover{border-color:var(--line-2);box-shadow:var(--shadow-md);transform:translateY(-3px);}
.dl-card .dl-icon{width:40px;height:40px;border-radius:10px;background:var(--bamboo-soft);color:var(--bamboo);display:flex;align-items:center;justify-content:center;}
.dl-card h3{font-size:17px;font-weight:600;}
.dl-card p{font-size:13px;color:var(--ink-2);line-height:1.8;}

/* 订阅 */
.subscribe-box{background:var(--bamboo-soft);border:1px solid var(--line);border-radius:var(--radius);padding:32px 22px;text-align:center;}
@media (min-width:1024px){.subscribe-box{padding:48px 40px;}}
.subscribe-box h2{font-size:24px;font-weight:700;}
@media (min-width:1024px){.subscribe-box h2{font-size:30px;}}
.subscribe-box p{margin-top:10px;font-size:15px;color:var(--ink-2);}
.subscribe-form{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:22px;}
.field{height:46px;border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;padding:0 16px;color:var(--ink);font-size:15px;outline:0;transition:border-color .18s ease,box-shadow .18s ease;width:100%;max-width:320px;}
.field::placeholder{color:var(--ink-3);}
.field:focus{border-color:var(--bamboo);box-shadow:0 0 0 3px rgba(47,107,94,.14);}
.subscribe-msg{margin-top:12px;font-size:13px;color:var(--bamboo);min-height:20px;}

/* footer */
.site-footer{background:var(--ink);color:#E9E4D8;}
.site-footer a{color:#CFD2C6;transition:color .16s ease;}
.site-footer a:hover{color:var(--cinnabar);}
.footer-title{font-size:15px;font-weight:600;color:#F5F1E7;margin-bottom:12px;}
.footer-line{border-top:1px solid rgba(233,228,216,.16);}

/* roulang page: article */
:root{
  --ink:#1A1C1A;--ink-2:#5A6058;--ink-3:#8C9189;
  --bamboo:#2F6B5E;--bamboo-dark:#224F46;--bamboo-soft:#E7EFE9;
  --cinnabar:#C4553B;--cinnabar-light:#D2603A;
  --paper:#FDFBF6;--rice:#F7F3EA;--line:#E3DDD0;--line-2:#CFC7B6;
  --radius:14px;--radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(26,28,26,.05);
  --shadow-md:0 10px 28px rgba(26,28,26,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;background:var(--rice);color:var(--ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;font-size:16px;line-height:1.8;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1024px){.wrap{padding-left:40px;padding-right:40px;}}

/* ===== header ===== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(253,251,246,.92);border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(6px);transition:box-shadow .2s ease;}
.site-header.scrolled{box-shadow:0 4px 18px rgba(26,28,26,.08);}
.nav-inner{display:flex;align-items:center;gap:16px;height:56px;}
@media (min-width:1024px){.nav-inner{height:64px;gap:26px;}}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px;color:var(--ink);transition:color .18s ease;white-space:nowrap;}
.logo:hover{color:var(--bamboo);}
.logo:focus-visible{outline:2px solid var(--bamboo);outline-offset:3px;border-radius:6px;}
.logo svg{width:22px;height:22px;color:var(--bamboo);flex:none;}
.nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:6px 2px;transition:color .18s ease;white-space:nowrap;}
.nav-link:hover{color:var(--bamboo);}
.nav-link:focus-visible{outline:2px solid var(--bamboo);outline-offset:3px;border-radius:4px;}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--cinnabar);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:7px 12px;transition:border-color .18s ease,box-shadow .18s ease;}
.nav-search:focus-within{border-color:var(--bamboo);box-shadow:0 0 0 3px rgba(47,107,94,.12);}
.nav-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search svg{width:16px;height:16px;color:var(--ink-3);flex:none;}
.desktop-search{display:none;}
@media (min-width:1024px){.desktop-search{display:flex;width:210px;}}
.nav-text-btn{font-size:15px;color:var(--ink-2);padding:6px 4px;transition:color .18s ease;}
.nav-text-btn:hover{color:var(--bamboo);}
.nav-text-btn:focus-visible{outline:2px solid var(--bamboo);outline-offset:3px;border-radius:4px;}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--ink);cursor:pointer;transition:border-color .18s ease,background .18s ease;}
.menu-toggle:hover{border-color:var(--line-2);background:var(--paper);}
.menu-toggle:focus-visible{outline:2px solid var(--bamboo);outline-offset:2px;}
@media (min-width:1024px){.menu-toggle{display:none;}}
@media (max-width:1023px){.nav-actions .btn,.nav-actions .nav-text-btn{display:none;}}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--paper);padding:16px 20px 22px;}
.mobile-drawer.open{display:block;}
@media (min-width:1024px){.mobile-drawer{display:none !important;}}
.mobile-drawer a.drawer-link{display:block;padding:11px 2px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--line);transition:color .18s ease;}
.mobile-drawer a.drawer-link:hover{color:var(--bamboo);}
.mobile-drawer .drawer-actions{display:flex;gap:10px;margin-top:16px;}

/* ===== buttons / badges / cards ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-sm);font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .16s ease;text-align:center;}
.btn:focus-visible{outline:2px solid var(--bamboo);outline-offset:2px;}
.btn-lg{height:48px;padding:0 24px;font-size:16px;}
.btn-md{height:40px;padding:0 18px;font-size:15px;}
.btn-sm{height:32px;padding:0 14px;font-size:13px;}
.btn-primary{background:var(--bamboo);color:#fff;}
.btn-primary:hover{background:var(--bamboo-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(34,79,70,.22);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;color:var(--bamboo);border-color:var(--bamboo);}
.btn-outline:hover{background:var(--bamboo-soft);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--line-2);color:var(--ink);background:var(--paper);}
.badge{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1;}
.badge-solid{background:var(--bamboo);color:#fff;}
.badge-soft{background:var(--bamboo-soft);color:var(--bamboo);}
.badge-line{border:1px solid var(--cinnabar);color:var(--cinnabar);}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;}
.card-hover:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--line-2);}

/* ===== article hero ===== */
.article-hero{background:var(--rice);padding:26px 0 30px;border-bottom:1px solid var(--line);}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);flex-wrap:nowrap;overflow:hidden;}
.breadcrumb a{color:var(--ink-3);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--bamboo);}
.breadcrumb .sep{color:var(--line-2);}
.breadcrumb .crumb-cat{color:var(--ink-2);white-space:nowrap;}
.breadcrumb .crumb-current{color:var(--ink);max-width:62%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{font-size:28px;line-height:1.35;font-weight:700;letter-spacing:-.01em;margin-top:14px;color:var(--ink);}
@media (min-width:768px){.article-title{font-size:34px;}}
@media (min-width:1024px){.article-title{font-size:38px;line-height:1.3;}}
.article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);}
.meta-time{display:inline-flex;align-items:center;gap:6px;}
.meta-time svg{width:14px;height:14px;color:var(--ink-3);}
.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--line-2);}
.size-switch{display:inline-flex;align-items:center;gap:4px;margin-left:auto;background:#fff;border:1px solid var(--line);border-radius:999px;padding:3px;}
.size-switch button{border:0;background:transparent;color:var(--ink-3);font-size:12px;height:24px;padding:0 10px;border-radius:999px;cursor:pointer;transition:all .16s ease;}
.size-switch button:hover{color:var(--bamboo);}
.size-switch button.is-on{background:var(--bamboo);color:#fff;}
.size-switch button:focus-visible{outline:2px solid var(--bamboo);outline-offset:1px;}

/* ===== article layout ===== */
.article-main{background:var(--paper);padding:40px 0 64px;}
@media (min-width:1024px){.article-main{padding:56px 0 88px;}}
.article-layout{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:52px;align-items:start;}}
.article-content-col{min-width:0;}
.article-body{max-width:720px;font-size:16px;line-height:1.9;color:#2C302C;word-break:break-word;overflow-wrap:break-word;}
.article-body.fs-sm{font-size:15px;}
.article-body.fs-lg{font-size:18px;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{position:relative;font-size:23px;font-weight:700;line-height:1.5;color:var(--ink);margin:1.9em 0 .7em;padding-left:14px;}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.24em;width:4px;border-radius:2px;background:var(--bamboo);}
.article-body h3{font-size:19px;font-weight:600;line-height:1.6;color:var(--ink);margin:1.6em 0 .6em;padding-left:12px;border-left:3px solid var(--bamboo-soft);}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--ink);}
.article-body blockquote{margin:1.4em 0;padding:16px 20px;background:var(--bamboo-soft);border-left:4px solid var(--cinnabar);border-radius:0 12px 12px 0;color:var(--ink-2);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em;}
.article-body li{margin:.35em 0;}
.article-body a{color:var(--bamboo);text-decoration:underline;text-underline-offset:3px;transition:color .16s ease;}
.article-body a:hover{color:var(--cinnabar);}
.article-body img{border-radius:12px;margin:1.4em auto;box-shadow:var(--shadow-sm);}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-3);margin-top:8px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--bamboo-soft);padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-body pre{background:#1A1C1A;color:#E9E4D8;padding:16px 18px;border-radius:12px;overflow-x:auto;margin:1.4em 0;}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:9px 12px;text-align:left;}
.article-body th{background:var(--bamboo-soft);color:var(--ink);}
.article-empty{max-width:560px;padding:36px 28px;background:var(--rice);border:1px dashed var(--line-2);border-radius:var(--radius);text-align:center;}
.article-empty h2{font-size:20px;font-weight:700;color:var(--ink);}
.article-empty p{color:var(--ink-2);font-size:14px;margin:10px 0 18px;}

/* tags + share */
.article-tags{max-width:720px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-pill{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:var(--bamboo-soft);color:var(--bamboo);font-size:13px;transition:all .16s ease;}
.tag-pill:hover{background:var(--bamboo);color:#fff;}
.share-group{display:flex;align-items:center;gap:8px;margin-left:auto;}
.share-btn{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--ink-2);font-size:13px;cursor:pointer;transition:all .16s ease;}
.share-btn:hover{background:var(--bamboo-soft);border-color:var(--bamboo);color:var(--bamboo);}
.share-btn:focus-visible{outline:2px solid var(--bamboo);outline-offset:2px;}
.share-btn svg{width:15px;height:15px;}

/* aside */
.article-aside{min-width:0;}
@media (min-width:1024px){.article-aside{position:sticky;top:88px;}}
.aside-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm);}
.aside-card + .aside-card{margin-top:18px;}
.aside-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);margin-bottom:12px;}
.aside-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--cinnabar);}
.aside-card p{font-size:14px;line-height:1.8;color:var(--ink-2);}
.aside-list{list-style:none;padding:0;margin:0;}
.aside-list li{padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--ink-2);}
.aside-list li:last-child{border-bottom:0;}
.aside-list a{transition:color .16s ease;}
.aside-list a:hover{color:var(--bamboo);}
.aside-more{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:13px;color:var(--bamboo);font-weight:600;}
.aside-more:hover{color:var(--bamboo-dark);}
.aside-more svg{width:14px;height:14px;transition:transform .16s ease;}
.aside-more:hover svg{transform:translateX(3px);}

/* ===== discussion ===== */
.discuss-section{background:var(--rice);padding:56px 0;}
@media (min-width:1024px){.discuss-section{padding:80px 0;}}
.sec-head{max-width:720px;}
.sec-title{font-size:24px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
@media (min-width:768px){.sec-title{font-size:28px;}}
.sec-desc{margin-top:10px;color:var(--ink-2);font-size:15px;line-height:1.85;}
.comment-shell{max-width:820px;margin-top:26px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);}
.comment-form{display:flex;flex-direction:column;gap:12px;}
.comment-input{width:100%;min-height:96px;resize:vertical;border:1px solid var(--line);border-radius:var(--radius-sm);padding:12px 14px;font-size:15px;line-height:1.8;color:var(--ink);background:#fff;transition:border-color .18s ease,box-shadow .18s ease;}
.comment-input::placeholder{color:var(--ink-3);}
.comment-input:focus{outline:0;border-color:var(--bamboo);box-shadow:0 0 0 3px rgba(47,107,94,.12);}
.comment-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.comment-hint{font-size:12px;color:var(--ink-3);}
.comment-empty{margin-top:22px;padding:24px;border:1px dashed var(--line-2);border-radius:var(--radius);text-align:center;background:var(--rice);}
.comment-empty p{font-size:14px;color:var(--ink-2);}
.skeleton-row{display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line);}
.skeleton-avatar{width:40px;height:40px;border-radius:50%;background:#EDE8DD;flex:none;}
.skeleton-lines{flex:1;min-width:0;}
.skeleton-line{height:11px;border-radius:6px;background:#EDE8DD;}
.skeleton-line + .skeleton-line{margin-top:9px;}
.skeleton-line.w-60{width:60%;}
.skeleton-line.w-90{width:90%;}
.skeleton-line.w-35{width:35%;}

/* ===== related ===== */
.related-section{background:var(--paper);padding:56px 0;}
@media (min-width:1024px){.related-section{padding:80px 0;}}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:26px;}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.related-card{display:flex;flex-direction:column;overflow:hidden;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;}
.related-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--line-2);}
.related-thumb{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--bamboo-soft);border-radius:12px 12px 0 0;}
.related-body{padding:16px 18px 18px;}
.related-body h3{font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;transition:color .16s ease;}
.related-card:hover .related-body h3{color:var(--bamboo);}
.related-body p{font-size:13px;color:var(--ink-2);line-height:1.8;margin-top:8px;}

/* ===== download ===== */
.dl-section{background:var(--bamboo-soft);padding:52px 0;}
@media (min-width:1024px){.dl-section{padding:72px 0;}}
.dl-grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px;}
@media (min-width:768px){.dl-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.dl-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:all .2s ease;display:flex;flex-direction:column;gap:10px;}
.dl-card:hover{border-color:var(--line-2);box-shadow:var(--shadow-md);transform:translateY(-3px);}
.dl-icon{width:42px;height:42px;border-radius:12px;background:var(--bamboo-soft);display:inline-flex;align-items:center;justify-content:center;color:var(--bamboo);}
.dl-icon svg{width:22px;height:22px;}
.dl-card h3{font-size:16px;font-weight:700;color:var(--ink);}
.dl-card p{font-size:13px;color:var(--ink-2);line-height:1.8;flex:1;}

/* ===== subscribe ===== */
.subscribe-section{background:var(--rice);padding:56px 0;}
@media (min-width:1024px){.subscribe-section{padding:76px 0;}}
.subscribe-box{max-width:760px;margin:0 auto;text-align:center;}
.subscribe-box .ink-divider{width:44px;height:3px;border-radius:2px;background:var(--cinnabar);margin:14px auto 0;}
.subscribe-form{display:flex;flex-direction:column;gap:12px;margin-top:24px;}
@media (min-width:640px){.subscribe-form{flex-direction:row;justify-content:center;}}
.email-input{width:100%;height:46px;border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 16px;background:#fff;color:var(--ink);font-size:15px;transition:border-color .18s ease,box-shadow .18s ease;}
.email-input::placeholder{color:var(--ink-3);}
.email-input:focus{outline:0;border-color:var(--bamboo);box-shadow:0 0 0 3px rgba(47,107,94,.12);}
@media (min-width:640px){.email-input{max-width:340px;}}
.back-link{display:inline-flex;align-items:center;gap:6px;margin-top:20px;font-size:14px;color:var(--ink-2);transition:color .16s ease;}
.back-link:hover{color:var(--bamboo);}

/* ===== footer ===== */
.site-footer{background:var(--ink);color:#E9E4D8;}
.site-footer a{color:#B9BBAF;transition:color .18s ease;}
.site-footer a:hover{color:var(--cinnabar-light);}
.site-footer a:focus-visible{outline:2px solid #7FA08A;outline-offset:3px;border-radius:4px;}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:#F5F1E7;margin-bottom:14px;}
.footer-line{border-top:1px solid rgba(233,228,216,.16);}