/* 往宿云 Wangsu Cloud — 共享样式 (现代国风·暖色) */
:root{
  --paper:#F7F3EC; --paper2:#FBF7F0; --ink:#2B2B2B; --ink2:#4A4A44;
  --red:#C8443A; --red-soft:#FBEDEA; --gold:#C9A86A;
  --muted:#6B6B63; --muted2:#9A9183; --line:#E8E2D8; --card:#FFFFFF;
  --nav-h:66px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--paper);color:var(--ink);line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:"Noto Serif SC",serif;font-weight:700;line-height:1.28;color:var(--ink)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- 语言切换 ---------- */
body.lang-zh .en{display:none}
body.lang-en .zh{display:none}
.lang-toggle{
  display:inline-flex;align-items:center;gap:6px;cursor:pointer;
  font-size:14px;font-weight:500;color:var(--ink);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;
  background:var(--card);transition:.2s;
}
.lang-toggle:hover{border-color:var(--gold)}

/* ---------- 导航 ---------- */
.nav{
  position:sticky;top:0;z-index:50;height:var(--nav-h);
  background:rgba(247,243,236,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{height:var(--nav-h);display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px}
.brand .mark{width:32px;height:32px}
.brand .name{font-family:"Noto Serif SC",serif;font-weight:700;font-size:20px}
.brand .en{font-size:11px;color:var(--muted2);font-family:"Noto Sans SC",sans-serif}
body.lang-en .brand .name{display:none}
body.lang-en .brand .en{font-size:13px;color:var(--ink2)}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:15px;font-weight:500;color:var(--ink);transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--red)}
.nav-right{display:flex;align-items:center;gap:16px}
.menu-btn{display:none;background:none;border:none;cursor:pointer;padding:8px}
.menu-btn span{display:block;width:22px;height:2px;background:var(--ink);margin:4px 0;border-radius:2px}
@media(max-width:920px){
  .nav-links{position:fixed;top:var(--nav-h);left:0;right:0;background:var(--paper);
    flex-direction:column;gap:0;padding:8px 24px 16px;border-bottom:1px solid var(--line);
    display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;border-bottom:1px solid var(--line);width:100%}
  .menu-btn{display:block}
}

/* ---------- Hero (全站统一，首页与分类页同构) ---------- */
.hero{background:radial-gradient(1100px 460px at 86% -12%, rgba(201,168,106,.12), transparent 60%)}
.hero.dark{background:var(--ink);color:var(--paper2);
  background:radial-gradient(1100px 460px at 86% -12%, rgba(201,168,106,.10), transparent 60%)}
.hero.dark h1,.hero.dark .sub{color:var(--paper2)}
.hero.dark .sub{color:#B8B0A2}
.hero.dark .btn-ghost{background:transparent;color:var(--paper2);border-color:rgba(255,255,255,.25)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;
  color:var(--red);background:var(--red-soft);padding:6px 14px;border-radius:999px;margin-bottom:18px}

/* ---------- 通用 Hero 结构（首页与分类页共用，保证一致） ---------- */
.home-hero{padding:72px 0 64px}
.home-hero-inner{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.home-hero-copy{max-width:560px}
.home-hero-copy .eyebrow{margin-bottom:22px}
.home-hero-copy h1{font-size:clamp(34px,4.4vw,52px);line-height:1.2;margin-bottom:6px}
.home-hero-copy h1 .en{font-size:clamp(16px,1.6vw,20px);font-weight:600;color:var(--gold);
  font-family:"Noto Sans SC",sans-serif;line-height:1.4;margin-top:12px;letter-spacing:.2px}
body.lang-en .home-hero-copy h1 .en{display:block}
.home-hero-copy .sub{font-size:18px;color:var(--muted);max-width:520px;margin:20px 0 0;line-height:1.8}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 28px;border-radius:10px;
  font-size:16px;font-weight:600;cursor:pointer;transition:.2s;border:1px solid transparent}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:#b23a31}
.btn-ghost{background:var(--card);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--gold)}
.home-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.home-hero-tags .tag{display:inline-flex;align-items:center;font-size:13px;font-weight:500;
  padding:7px 14px;border-radius:999px;background:var(--card);border:1px solid var(--line);color:var(--ink2)}
.home-hero-tags .tag .en{color:var(--muted2);margin-left:5px;font-size:12px}
.home-hero-visual{position:relative;border-radius:24px;overflow:hidden;aspect-ratio:4/5;background:var(--paper2);
  box-shadow:0 22px 60px rgba(43,43,43,.16)}
.home-hero-visual img{width:100%;height:100%;object-fit:cover}
.home-hero-visual .seal{position:absolute;right:18px;bottom:18px;width:54px;height:54px;border-radius:10px;
  background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:"Noto Serif SC",serif;font-weight:700;font-size:15px;letter-spacing:1px;line-height:1.05;
  text-align:center;box-shadow:0 6px 18px rgba(200,68,58,.4);writing-mode:vertical-rl;padding:4px}
body.lang-en .home-hero-visual .seal{writing-mode:horizontal-tb;width:auto;min-width:54px;height:auto;min-height:54px;
  font-size:13px;letter-spacing:.2px;line-height:1.2;padding:8px 12px;max-width:180px;white-space:normal;
  font-family:"Noto Sans SC",sans-serif}
@media(max-width:860px){
  .home-hero{padding:48px 0 44px}
  .home-hero-inner{grid-template-columns:1fr;gap:32px}
  .home-hero-visual{aspect-ratio:16/10;order:-1}
  .home-hero-copy{max-width:none}
  .hero{padding:48px 0 44px}
}

/* ---------- 通用区块 ---------- */
.section{padding:64px 0}
.section.alt{background:var(--paper2)}
.sec-head{margin-bottom:34px;max-width:760px}
.sec-head .eyebrow{margin-bottom:14px}
.sec-head h2{font-size:30px;margin-bottom:12px}
.sec-head p{font-size:16px;color:var(--muted)}
.note{font-size:13px;color:var(--muted2);margin-top:10px}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:20px}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;transition:.2s}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(43,43,43,.10)}
.card h3{font-size:17px;margin-bottom:8px}
.card p{font-size:14px;color:var(--muted);line-height:1.6}
.card .tag{display:inline-block;font-size:11px;font-weight:600;color:var(--red);
  background:var(--red-soft);padding:3px 10px;border-radius:999px;margin-bottom:12px}
@media(max-width:920px){.grid.cols-3,.grid.cols-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}}

/* ---------- 列表 / 条目 ---------- */
.list{display:flex;flex-direction:column}
.item{display:flex;gap:26px;padding:22px 4px;border-bottom:1px solid var(--line);align-items:flex-start}
.item:last-child{border-bottom:none}
.item .term{flex:0 0 220px}
.item .term .cn{font-family:"Noto Serif SC",serif;font-weight:700;font-size:22px}
.item .term .en{font-size:12px;color:var(--muted2)}
.item .desc{font-size:15px;color:var(--ink2);flex:1}
@media(max-width:640px){.item{flex-direction:column;gap:8px}.item .term{flex:none}}

/* ---------- 表格 ---------- */
.table-wrap{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--card)}
.table-wrap table{width:100%;border-collapse:collapse}
.table-wrap th,.table-wrap td{padding:14px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
.table-wrap thead th{background:var(--ink);color:var(--paper2);font-weight:500}
.table-wrap tbody tr:nth-child(even){background:var(--paper2)}
.table-wrap td:first-child{background:#F1E9D9;font-family:"Noto Serif SC",serif;font-weight:600;color:var(--ink)}
.table-scroll{overflow-x:auto}
@media(max-width:680px){.table-wrap{font-size:12px}.table-wrap th,.table-wrap td{padding:10px 12px}}

/* ---------- 提示框 ---------- */
.callout{background:var(--red-soft);border-radius:12px;padding:18px 22px;margin-top:14px}
.callout .label{font-size:12px;font-weight:600;color:var(--red);display:block;margin-bottom:4px}
.callout p{font-size:14px;color:var(--muted);line-height:1.6}
.lead{font-size:17px;color:var(--ink2);line-height:1.9;max-width:840px}

/* ---------- 邮箱 / 联系表单 ---------- */
.email-box{display:flex;align-items:center;gap:16px;flex-wrap:wrap;background:var(--card);
  border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:6px 0 30px}
.email-box .lbl{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.3px}
.email-box a{font-family:"Noto Serif SC",serif;font-weight:700;font-size:20px;color:var(--red)}
.email-box a:hover{text-decoration:underline}
.contact-form{max-width:560px;display:flex;flex-direction:column;gap:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--ink)}
.field .req{color:var(--red)}
.field input,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;
  font-family:inherit;font-size:15px;background:var(--card);color:var(--ink);transition:.2s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,168,106,.18)}
.field textarea{resize:vertical}
.form-note{font-size:13px;color:var(--muted2);line-height:1.6}
.form-status{font-size:14px;line-height:1.6;padding:12px 14px;border-radius:10px;margin:0}
.form-status .en{color:var(--muted);margin-left:4px}
.form-status.success{background:rgba(46,138,87,.10);border:1px solid rgba(46,138,87,.35);color:#2e8a57}
.form-status.error{background:rgba(200,68,58,.10);border:1px solid rgba(200,68,58,.35);color:var(--red)}
.btn.loading{opacity:.7;cursor:progress}

/* ---------- 首页板块导航卡 ---------- */
.sections-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.sec-card{display:flex;gap:18px;align-items:center;background:var(--card);border:1px solid var(--line);
  border-radius:18px;padding:22px;transition:.2s}
.sec-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(43,43,43,.10);border-color:var(--gold)}
.sec-card .ic{width:52px;height:52px;border-radius:12px;background:var(--red-soft);flex:0 0 52px;
  display:flex;align-items:center;justify-content:center}
.sec-card .ic svg{width:26px;height:26px}
.sec-card .t{font-family:"Noto Serif SC",serif;font-weight:700;font-size:19px}
.sec-card .d{font-size:13px;color:var(--muted);margin-top:3px}
.sec-card .arrow{margin-left:auto;color:var(--red);font-size:20px}
@media(max-width:680px){.sections-grid{grid-template-columns:1fr}}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:#B8B0A2;padding:56px 0 34px;margin-top:40px}
.footer .top{display:flex;justify-content:space-between;gap:48px;flex-wrap:wrap;margin-bottom:34px}
.footer .brand .name{color:var(--paper2)}
.footer .brand .en{color:var(--muted2)}
.footer .tag{font-size:14px;max-width:420px;margin-top:12px;line-height:1.7}
.footer .cols{display:flex;gap:54px;flex-wrap:wrap}
.footer .col h4{color:var(--gold);font-size:13px;font-family:"Noto Sans SC",sans-serif;font-weight:600;margin-bottom:12px;letter-spacing:.04em}
.footer .col a{display:block;font-size:14px;color:#B8B0A2;padding:5px 0;transition:.2s}
.footer .col a:hover{color:var(--paper2)}
.footer .seal{width:108px;height:108px;border-radius:16px;background:var(--red);display:flex;
  align-items:center;justify-content:center;font-family:"Noto Serif SC",serif;font-weight:700;
  font-size:24px;letter-spacing:2px;color:var(--paper2);flex:0 0 108px;writing-mode:horizontal-tb;
  text-align:center;line-height:1.25}
.footer .seal .en{font-family:"Noto Sans SC",sans-serif;font-size:13px;letter-spacing:.3px;line-height:1.35}
.footer .divider{height:1px;background:#3a3a36;margin-bottom:18px}
.footer .bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8A8276}

/* 通用配图 */
.figure{border-radius:18px;overflow:hidden;aspect-ratio:16/9;background:var(--paper2);margin:8px 0 24px}
.figure img{width:100%;height:100%;object-fit:cover}
.lead{font-size:17px;color:var(--ink2);max-width:780px;margin-bottom:8px}