/* ==========================================================================
   设驿 · 设计ICP  —— 全站设计系统 v2
   建筑手稿 / 纸感暖白 / 青铜辅色 —— 全新重构
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  /* 底色层 */
  --paper:#F6F3EE;
  --paper-2:#EFEAE1;
  --paper-3:#E7E1D6;
  --surface:#FFFFFF;
  --surface-2:#FBF9F6;

  /* 文字层 */
  --ink:#1C1A17;
  --ink-2:#3A3630;
  --muted:#8A8378;
  --muted-2:#A8A197;

  /* 线条层 */
  --line:#E4DED2;
  --line-2:#EFE9DE;
  --line-3:#D8D0C0;

  /* 品牌色 */
  --bronze:#9A6B3F;
  --bronze-2:#7E5530;
  --bronze-3:#C08D5C;
  --bronze-soft:#F2E9DC;
  --bronze-wash:#FAF4EC;

  --olive:#586B4F;
  --olive-soft:#E9EFE5;
  --clay:#A8503C;
  --clay-soft:#F7EAE5;
  --gold:#B08D57;
  --ok:#4E7A52;
  --danger:#B4544A;

  /* 圆角 */
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-full:999px;

  /* 阴影 */
  --sh-1:0 1px 2px rgba(28,26,23,.04);
  --sh-2:0 4px 16px rgba(28,26,23,.05);
  --sh-3:0 12px 32px rgba(28,26,23,.08);
  --sh-4:0 24px 60px rgba(28,26,23,.13);
  --sh-bronze:0 10px 28px rgba(154,107,63,.22);

  /* 字体 */
  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC",STSong,"SimSun",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;

  /* 尺寸 */
  --maxw:1240px;
  --gutter:24px;
  --header-h:70px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. 基础重置 ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--ink);
  line-height:1.75;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
img{display:block;max-width:100%;height:auto}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
::selection{background:var(--bronze);color:#fff}

/* 滚动条 */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--paper-2)}
::-webkit-scrollbar-thumb{background:var(--line-3);border-radius:6px;border:2px solid var(--paper-2)}
::-webkit-scrollbar-thumb:hover{background:var(--muted-2)}

/* ---------- 3. 布局工具 ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.container-narrow{max-width:880px}
.serif{font-family:var(--serif)}
.muted{color:var(--muted)}
.center{text-align:center}
.flex{display:flex}
.between{display:flex;align-items:center;justify-content:space-between}
.nowrap{white-space:nowrap}
.hide{display:none !important}

/* 细分割线（建筑手稿风） */
.hr-line{height:1px;background:var(--line);border:0;margin:0}
.hr-fade{height:1px;border:0;margin:0;background:linear-gradient(90deg,transparent,var(--line-3) 20%,var(--line-3) 80%,transparent)}

/* ---------- 4. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:var(--r-full);
  font-weight:600;font-size:14.5px;letter-spacing:.02em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--bronze);color:#fff;box-shadow:var(--sh-bronze)}
.btn-primary:hover{background:var(--bronze-2);transform:translateY(-2px);box-shadow:0 14px 34px rgba(154,107,63,.3)}
.btn-outline{border-color:var(--line-3);color:var(--ink);background:transparent}
.btn-outline:hover{border-color:var(--bronze);color:var(--bronze);background:var(--bronze-wash)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.28);backdrop-filter:blur(6px)}
.btn-light:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.5)}
.btn-white{background:#fff;color:var(--bronze-2)}
.btn-white:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-ghost{color:var(--muted);padding:8px 12px}
.btn-ghost:hover{color:var(--bronze)}
.btn-lg{padding:14px 32px;font-size:15.5px}
.btn-sm{padding:7px 16px;font-size:13.5px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;pointer-events:none}

/* ---------- 5. 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(246,243,238,.82);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:26px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--bronze-3),var(--bronze-2));
  color:#fff;display:grid;place-items:center;
  font-family:var(--serif);font-size:22px;font-weight:700;
  box-shadow:0 6px 16px rgba(126,85,48,.28);
  position:relative;overflow:hidden;
}
.brand-mark::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.35),transparent 55%)}
.brand-text{display:flex;flex-direction:column;justify-content:center;line-height:1.2}
.brand-text b{font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:2.5px}
.brand-text small{font-size:10px;color:var(--muted);letter-spacing:3px;text-transform:uppercase}

.main-nav{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:5px;
  padding:9px 15px;border-radius:var(--r-sm);
  font-weight:600;font-size:14.5px;color:var(--ink-2);
}
.nav-link:hover{background:var(--bronze-wash);color:var(--bronze-2)}
.nav-link::after{
  content:"";position:absolute;left:15px;right:15px;bottom:4px;height:1.5px;
  background:var(--bronze);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.nav-link:hover::after{transform:scaleX(1)}
.caret{font-size:9px;opacity:.55;transition:transform .2s}
.nav-item{position:relative}
.nav-item:hover .caret{transform:rotate(180deg)}
.drop-menu{
  position:absolute;top:calc(100% + 10px);left:0;min-width:186px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
.nav-item:hover .drop-menu{opacity:1;visibility:visible;transform:translateY(0)}
.drop-menu a{
  display:block;padding:9px 13px;border-radius:var(--r-xs);
  font-size:14px;font-weight:500;color:var(--ink-2);
}
.drop-menu a:hover{background:var(--bronze-soft);color:var(--bronze-2)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.user-chip{
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;flex:0 0 auto;
  font-size:13px;font-weight:600;color:var(--bronze-2);
  background:var(--bronze-soft);padding:4px 12px 4px 4px;border-radius:var(--r-full);
  transition:background .18s var(--ease);
}
.user-chip:hover{background:#EBDCC6}
.uc-initial{
  width:24px;height:24px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(140deg,var(--bronze-3),var(--bronze-2));
  color:#fff;display:grid;place-items:center;font-size:12px;font-weight:700;
}
.uc-name{max-width:110px;overflow:hidden;text-overflow:ellipsis}
.nav-mobile-only{display:none}
.nav-desktop-only{display:inline-flex}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-sm);align-items:center;justify-content:center;border:1px solid var(--line)}
.nav-toggle span{display:block;width:18px;height:1.8px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:1.8px;background:var(--ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 6. Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(1100px 520px at 82% -12%,rgba(192,141,92,.28),transparent 62%),
    radial-gradient(760px 420px at 4% 118%,rgba(88,107,79,.32),transparent 60%),
    linear-gradient(118deg,#191713 0%,#2A2620 48%,#4A4133 100%);
}
/* 蓝图网格纹理 */
.hero::before{
  content:"";position:absolute;inset:0;opacity:.14;
  background-image:
    linear-gradient(rgba(255,255,255,.55) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:58px 58px;
  mask-image:radial-gradient(circle at 50% 30%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000,transparent 78%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;padding:84px 0 88px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  padding:7px 16px;border-radius:var(--r-full);
  font-size:12.5px;letter-spacing:.4px;color:rgba(255,255,255,.88);
  margin-bottom:22px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:#8FD69B;box-shadow:0 0 0 4px rgba(143,214,155,.22);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
.hero h1{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(34px,4.6vw,54px);line-height:1.18;letter-spacing:1.5px;
  margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;color:var(--bronze-3);position:relative;padding:0 2px;
}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;background:rgba(192,141,92,.22);z-index:-1}
.hero-lead{font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.76);max-width:540px;margin-bottom:30px}
.hero-cta{display:flex;gap:13px;flex-wrap:wrap;margin-bottom:30px}
.hero-search{
  display:flex;align-items:center;gap:8px;max-width:470px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.2);
  border-radius:var(--r-full);padding:6px 6px 6px 20px;
  transition:border-color .2s,background .2s;
}
.hero-search:focus-within{border-color:rgba(192,141,92,.7);background:rgba(255,255,255,.13)}
.hero-search input{flex:1;min-width:0;background:transparent;border:0;outline:none;color:#fff;font-size:14.5px}
.hero-search input::placeholder{color:rgba(255,255,255,.45)}
.hero-search button{
  background:var(--bronze);color:#fff;border-radius:var(--r-full);
  padding:10px 24px;font-weight:600;font-size:14.5px;transition:background .2s;
}
.hero-search button:hover{background:var(--bronze-3)}

/* Hero 视觉：拼贴 + 悬浮数据卡 */
.hero-visual{position:relative}
.hero-collage{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hero-collage figure{position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.14);margin:0}
.hero-collage figure:nth-child(1){aspect-ratio:3/4}
.hero-collage figure:nth-child(2){aspect-ratio:3/4;margin-top:34px}
.hero-collage figure:nth-child(3){aspect-ratio:16/11;grid-column:1/-1}
.hero-collage img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.hero-collage figure:hover img{transform:scale(1.06)}
.hero-float{
  position:absolute;right:-6px;bottom:-18px;z-index:3;
  background:rgba(255,255,255,.94);backdrop-filter:blur(12px);
  border-radius:var(--r-md);padding:15px 18px;
  box-shadow:var(--sh-4);min-width:196px;
}
.hero-float .fl-num{font-family:var(--serif);font-size:27px;font-weight:700;color:var(--bronze-2);line-height:1.1}
.hero-float .fl-label{font-size:12.5px;color:var(--muted);margin-top:2px}

/* ---------- 7. 区块标题 ---------- */
.section{padding:76px 0}
.section-tight{padding:52px 0}
.section-tint{background:var(--paper-2)}
.section-ink{background:var(--ink);color:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;margin-bottom:34px;flex-wrap:wrap}
.title-wrap{display:flex;flex-direction:column;gap:8px}
.kicker{
  font-size:11.5px;font-weight:700;letter-spacing:3.4px;text-transform:uppercase;
  color:var(--bronze);display:flex;align-items:center;gap:10px;
}
.kicker::before{content:"";width:26px;height:1px;background:var(--bronze-3)}
.section-head h2{font-family:var(--serif);font-size:clamp(25px,3vw,34px);font-weight:700;letter-spacing:1px;line-height:1.3}
.section-head p{color:var(--muted);max-width:560px;font-size:14.5px}
.link-more{
  display:inline-flex;align-items:center;gap:7px;font-weight:600;color:var(--bronze-2);
  font-size:14.5px;padding-bottom:2px;border-bottom:1px solid var(--bronze-3);
}
.link-more:hover{gap:11px;color:var(--bronze)}

/* ---------- 8. 分类筛选条 ---------- */
.chip-row{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 16px;border:1px solid var(--line);border-radius:var(--r-full);
  background:var(--surface);font-size:14px;font-weight:600;color:var(--ink-2);
  transition:all .2s var(--ease);
}
.chip:hover{border-color:var(--bronze);color:var(--bronze-2);transform:translateY(-2px);box-shadow:var(--sh-2)}
.chip.active{background:var(--bronze);border-color:var(--bronze);color:#fff;box-shadow:var(--sh-bronze)}
.chip.active .chip-ico{background:rgba(255,255,255,.22) !important}
.chip-ico{width:24px;height:24px;border-radius:7px;display:grid;place-items:center;flex:0 0 auto}
.chip-ico svg{width:14px;height:14px;fill:#fff}

/* 工具条 */
.toolbar{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 18px;margin-bottom:30px;box-shadow:var(--sh-1);
}
.toolbar-label{font-weight:600;font-size:13.5px;color:var(--muted);letter-spacing:.5px}
.toolbar-right{margin-left:auto;display:flex;align-items:center;gap:9px}
.input,.select{
  height:40px;padding:0 14px;border:1px solid var(--line-3);border-radius:var(--r-sm);
  background:var(--surface-2);font-size:14px;outline:none;transition:.18s;
}
.input:focus,.select:focus{border-color:var(--bronze);background:#fff;box-shadow:0 0 0 3px var(--bronze-soft)}
.input::placeholder{color:var(--muted-2)}
.select{cursor:pointer;padding-right:34px;appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%238A8378'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 8px center;background-size:18px;
}
.result-count{font-size:13.5px;color:var(--muted)}
.result-count b{color:var(--bronze-2);font-weight:700}

/* ---------- 9. 卡片 ---------- */
.grid{display:grid;gap:26px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-side{grid-template-columns:1fr 320px;gap:34px;align-items:start}

.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--sh-4);border-color:var(--line-3)}
.card-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--paper-3)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.card:hover .card-media img{transform:scale(1.06)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(28,26,23,.28),transparent 38%,transparent 62%,rgba(28,26,23,.16))}
.badge{
  position:absolute;top:12px;left:12px;z-index:2;
  background:rgba(28,26,23,.7);color:#fff;font-size:11.5px;font-weight:600;
  padding:4px 11px;border-radius:var(--r-full);backdrop-filter:blur(6px);
}
.badge.gold{background:rgba(154,107,63,.92)}
.badge.top{background:linear-gradient(135deg,var(--bronze-3),var(--bronze-2))}
.badge.right{
  position:static;align-self:flex-start;background:var(--bronze-soft);color:var(--bronze-2);
  backdrop-filter:none;padding:4px 10px;font-size:11.5px;letter-spacing:.4px;
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:9px;flex:1}
.card-kicker{font-size:12px;font-weight:700;color:var(--bronze);letter-spacing:1.2px;display:flex;align-items:center;gap:7px}
.card-title{font-family:var(--serif);font-size:18.5px;font-weight:700;line-height:1.45;letter-spacing:.4px}
.card:hover .card-title{color:var(--bronze-2)}
.card-text{font-size:13.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  display:flex;align-items:center;gap:14px;margin-top:auto;padding-top:14px;
  border-top:1px solid var(--line-2);font-size:12.5px;color:var(--muted);
}
.card-foot b{color:var(--ink);font-weight:700}
.card-foot .push{margin-left:auto}
.price{color:var(--bronze-2);font-weight:700;font-size:14px}

/* 列表条目（资讯） */
.list-row{
  display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line-2);
  transition:background .2s;
}
.list-row:last-child{border-bottom:0}
.list-thumb{width:196px;flex:0 0 auto;aspect-ratio:16/10;border-radius:var(--r-sm);overflow:hidden;background:var(--paper-3)}
.list-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.list-row:hover .list-thumb img{transform:scale(1.07)}
.list-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}
.list-body h3{font-family:var(--serif);font-size:19px;font-weight:700;line-height:1.45}
.list-row:hover .list-body h3{color:var(--bronze-2)}
.list-sum{font-size:13.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-meta{font-size:12.5px;color:var(--muted-2);margin-top:2px;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 10. 价值主张 / 商业模式 ---------- */
.biz-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.biz-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:30px 28px;overflow:hidden;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.biz-card:hover{transform:translateY(-5px);box-shadow:var(--sh-3)}
.biz-card::before{content:"";position:absolute;left:0;top:0;width:3px;height:0;background:var(--bronze);transition:height .35s var(--ease)}
.biz-card:hover::before{height:100%}
.biz-idx{
  font-family:var(--serif);font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--bronze-3);margin-bottom:14px;
}
.biz-card h3{font-family:var(--serif);font-size:20px;font-weight:700;margin-bottom:9px}
.biz-card p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- 11. CTA ---------- */
.cta{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--bronze),var(--bronze-2));
  border-radius:var(--r-xl);padding:56px 60px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.08);
}
.cta h2{font-family:var(--serif);font-size:clamp(23px,2.6vw,30px);font-weight:700;margin-bottom:9px;letter-spacing:.8px}
.cta p{opacity:.9;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}

/* ---------- 12. 详情页 ---------- */
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:24px;flex-wrap:wrap}
.crumb a:hover{color:var(--bronze)}
.crumb .sep{opacity:.45}

.detail-layout{display:grid;grid-template-columns:1.32fr .68fr;gap:36px;align-items:start}
.gallery-main{
  position:relative;aspect-ratio:16/11;border-radius:var(--r-lg);overflow:hidden;
  background:var(--paper-3);box-shadow:var(--sh-2);
}
.gallery-main img{width:100%;height:100%;object-fit:cover}
.gallery-count{
  position:absolute;right:16px;bottom:16px;z-index:2;
  background:rgba(28,26,23,.66);color:#fff;backdrop-filter:blur(8px);
  padding:5px 13px;border-radius:var(--r-full);font-size:12.5px;
}
.thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px}
.thumb{
  aspect-ratio:4/3;border-radius:var(--r-sm);overflow:hidden;cursor:pointer;
  border:2px solid transparent;transition:.2s var(--ease);background:var(--paper-3);
}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.thumb.active{border-color:var(--bronze)}

.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-2);position:sticky;top:calc(var(--header-h) + 20px);
}
.side-card h1{font-family:var(--serif);font-size:26px;font-weight:700;line-height:1.35;margin:10px 0 14px;letter-spacing:.6px}
.side-price{font-family:var(--serif);font-size:30px;font-weight:700;color:var(--bronze-2);margin-bottom:18px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:13px 18px;font-size:14px;margin:0 0 20px;padding:18px 0;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.kv dt{color:var(--muted)}
.kv dd{font-weight:600;text-align:right}
.author-line{display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:14px}
.author-line b{font-weight:700}
.verified{
  display:inline-flex;align-items:center;gap:4px;font-size:11.5px;font-weight:600;
  color:var(--ok);background:var(--olive-soft);padding:3px 10px;border-radius:var(--r-full);
}
.inquiry{
  margin-top:20px;background:var(--bronze-wash);border:1px solid var(--bronze-soft);
  border-radius:var(--r-md);padding:22px;
}
.inquiry h4{font-family:var(--serif);font-size:16.5px;font-weight:700;margin-bottom:4px}
.inquiry .tip{font-size:12.5px;color:var(--muted);margin-bottom:14px}
.inquiry input,.inquiry textarea{
  width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;font-size:14px;outline:none;margin-bottom:10px;transition:.18s;
}
.inquiry input:focus,.inquiry textarea:focus{border-color:var(--bronze);box-shadow:0 0 0 3px var(--bronze-soft)}
.inquiry textarea{min-height:84px;resize:vertical}
.inquiry-msg{font-size:13px;min-height:20px;margin-top:9px}

.prose{max-width:780px;margin:0 auto;font-size:16px;line-height:2}
.prose h3{font-family:var(--serif);font-size:22px;font-weight:700;margin:36px 0 14px;padding-left:14px;border-left:3px solid var(--bronze)}
.prose h3:first-child{margin-top:0}
.prose p{margin-bottom:18px;color:var(--ink-2)}
.prose img{border-radius:var(--r-md);margin:22px 0}
.prose blockquote{
  margin:26px 0;padding:20px 24px;background:var(--bronze-wash);
  border-left:3px solid var(--bronze);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-2);
}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:22px}
.related-grid .card-title{font-size:15.5px}

/* ---------- 13. 表单 ---------- */
.form-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:38px 40px;box-shadow:var(--sh-2);
}
.form-group{margin-bottom:20px}
.form-label{display:block;font-weight:600;font-size:14px;margin-bottom:8px}
.form-label .req{color:var(--clay);margin-left:3px}
.form-input,.form-textarea,.form-select{
  width:100%;padding:12px 15px;border:1px solid var(--line-3);border-radius:var(--r-sm);
  background:var(--surface-2);font-size:14.5px;outline:none;transition:.18s;
}
.form-input:focus,.form-textarea:focus,.form-select:focus{
  border-color:var(--bronze);background:#fff;box-shadow:0 0 0 3px var(--bronze-soft);
}
.form-textarea{min-height:140px;resize:vertical;line-height:1.8}
.form-select{appearance:none;-webkit-appearance:none;cursor:pointer;padding-right:38px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%238A8378'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;background-size:18px;
}
.form-hint{font-size:12.5px;color:var(--muted);margin-top:6px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}

/* 分段选择器 */
.segment{display:inline-flex;background:var(--paper-2);border-radius:var(--r-sm);padding:4px;gap:4px;flex-wrap:wrap}
.segment label{position:relative;cursor:pointer}
.segment input{position:absolute;opacity:0;width:0;height:0}
.segment span{
  display:inline-block;padding:9px 20px;border-radius:var(--r-xs);
  font-weight:600;font-size:14px;color:var(--ink-2);transition:.18s var(--ease);
}
.segment label:hover span{color:var(--bronze-2)}
.segment input:checked + span{background:#fff;color:var(--bronze-2);box-shadow:var(--sh-2)}

.alert{display:flex;align-items:flex-start;gap:10px;padding:14px 18px;border-radius:var(--r-sm);margin-bottom:18px;font-size:14px}
.alert-err{background:var(--clay-soft);color:#8C3A28;border:1px solid #EFD3CB}
.alert-ok{background:var(--olive-soft);color:#3F5C40;border:1px solid #D6E3D2}
.alert-info{background:var(--bronze-soft);color:var(--bronze-2);border:1px solid #E4D5C0}

.quota-bar{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:var(--bronze-soft);border:1px solid #E7DAC6;border-radius:var(--r-sm);
  padding:13px 18px;margin-bottom:22px;font-size:14px;color:var(--bronze-2);
}
.quota-bar b{font-weight:700}
.quota-bar.over{background:var(--clay-soft);border-color:#EFD3CB;color:#8C3A28}

/* 认证页 */
.auth-wrap{max-width:460px;margin:0 auto}
.auth-wrap.wide{max-width:560px}
.auth-head{text-align:center;margin-bottom:30px}
.auth-head .brand-mark{margin:0 auto 16px;width:54px;height:54px;font-size:28px;border-radius:16px}
.auth-head h2{font-family:var(--serif);font-size:28px;font-weight:700;letter-spacing:1px;margin-bottom:8px}
.auth-head p{color:var(--muted);font-size:14px}
.auth-foot{text-align:center;margin-top:20px;font-size:13.5px;color:var(--muted)}
.auth-foot a{color:var(--bronze-2);font-weight:700}
.auth-note{
  margin-top:20px;text-align:center;font-size:12.5px;color:var(--muted);
  background:var(--paper-2);border-radius:var(--r-sm);padding:11px;
}

/* ---------- 14. 会员套餐 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch}
.plan-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:30px 26px;transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.plan-card:hover{transform:translateY(-6px);box-shadow:var(--sh-3)}
.plan-card.featured{border-color:var(--bronze);box-shadow:0 14px 44px rgba(154,107,63,.16)}
.plan-card.featured::before{content:"";position:absolute;inset:-1px;border-radius:var(--r-md);border:1px solid var(--bronze);pointer-events:none}
.plan-ribbon{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:linear-gradient(135deg,var(--bronze-3),var(--bronze-2));color:#fff;
  font-size:11.5px;font-weight:700;padding:4px 15px;border-radius:var(--r-full);
  letter-spacing:.5px;white-space:nowrap;
}
.plan-name{font-family:var(--serif);font-size:22px;font-weight:700;letter-spacing:.5px}
.plan-price{font-family:var(--serif);font-size:40px;font-weight:700;line-height:1.15;margin:12px 0 4px}
.plan-price small{font-size:14px;color:var(--muted);font-weight:500;font-family:var(--sans)}
.plan-quota{font-size:13px;color:var(--muted);padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid var(--line-2)}
.plan-list{display:grid;gap:11px;margin-bottom:24px;flex:1}
.plan-list li{display:flex;gap:10px;font-size:14px;align-items:flex-start;line-height:1.6}
.plan-list li::before{
  content:"✓";color:#fff;background:var(--olive);width:18px;height:18px;border-radius:50%;
  display:grid;place-items:center;font-size:11px;flex:0 0 auto;margin-top:3px;font-weight:700;
}

/* ---------- 15. 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.62);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--bronze-3),var(--bronze-2))}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text small{color:rgba(255,255,255,.4)}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.9;max-width:330px}
.footer-col h4{color:#fff;font-size:14.5px;font-weight:700;margin-bottom:16px;letter-spacing:.5px}
.footer-col a{display:block;font-size:13.5px;padding:6px 0;transition:.18s}
.footer-col a:hover{color:var(--bronze-3);transform:translateX(3px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:22px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.4);
}
.footer-bottom a:hover{color:var(--bronze-3)}

/* ---------- 16. 后台 ---------- */
.admin-body{background:var(--paper-2)}
.admin-shell{display:grid;grid-template-columns:238px 1fr;min-height:100vh}
.admin-side{
  background:var(--ink);color:#fff;padding:24px 16px;
  position:sticky;top:0;height:100vh;overflow-y:auto;
}
.admin-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16.5px;padding:0 8px 22px;margin-bottom:14px;border-bottom:1px solid rgba(255,255,255,.1)}
.admin-logo .brand-mark{width:34px;height:34px;font-size:18px;border-radius:10px}
.admin-nav{display:grid;gap:3px}
.admin-nav a{
  display:flex;align-items:center;gap:11px;padding:11px 14px;border-radius:var(--r-sm);
  color:rgba(255,255,255,.68);font-size:14px;font-weight:500;transition:.18s;
}
.admin-nav a:hover{background:rgba(255,255,255,.07);color:#fff}
.admin-nav a.active{background:rgba(192,141,92,.2);color:#fff}
.admin-nav a.active::before{content:"";position:absolute;left:0;width:3px;height:18px;background:var(--bronze-3);border-radius:0 3px 3px 0}
.admin-nav a{position:relative}
.admin-nav .pill{margin-left:auto;background:var(--bronze);color:#fff;font-size:11px;padding:1px 9px;border-radius:var(--r-full);font-weight:600}
.admin-sep{height:1px;background:rgba(255,255,255,.1);margin:14px 0}
.admin-main{padding:32px 36px;min-width:0}
.admin-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.admin-head h1{font-family:var(--serif);font-size:27px;font-weight:700;letter-spacing:.8px}
.admin-head .sub{color:var(--muted);font-size:13.5px}

.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:28px}
.stat-card{
  position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;
  box-shadow:var(--sh-1);transition:.22s var(--ease);
}
.stat-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.stat-card b{font-family:var(--serif);font-size:30px;font-weight:700;line-height:1.1;display:block}
.stat-card span{font-size:13px;color:var(--muted);display:block;margin-top:4px}
.stat-card.alert b{color:var(--clay)}
.stat-card.ok b{color:var(--ok)}
.stat-card .stat-ico{position:absolute;right:16px;top:16px;font-size:20px;opacity:.28}
.stat-card.bronze b{color:var(--bronze-2)}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1)}
.panel h3{font-family:var(--serif);font-size:18px;font-weight:700;margin-bottom:16px}
.panel-title{font-family:var(--serif);font-size:18px;font-weight:700;margin:4px 0 16px}

.data-table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1)}
.data-table th,.data-table td{padding:14px 16px;text-align:left;font-size:13.5px;border-bottom:1px solid var(--line-2);vertical-align:middle}
.data-table th{background:var(--surface-2);font-weight:700;color:var(--muted);font-size:12px;letter-spacing:.8px;text-transform:uppercase;white-space:nowrap}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:hover td{background:var(--surface-2)}
.data-table .thumb{width:66px;height:48px;object-fit:cover;border-radius:var(--r-xs);display:block}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

.pill-tag{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:4px 11px;border-radius:var(--r-full);white-space:nowrap}
.pill-pending{background:#FBF0D8;color:#96701A}
.pill-approved{background:var(--olive-soft);color:var(--ok)}
.pill-rejected{background:var(--clay-soft);color:#A0432F}
.pill-neutral{background:var(--paper-3);color:var(--muted)}

.btn-mini{padding:6px 14px;font-size:12.5px;border-radius:var(--r-xs);border:1px solid var(--line-3);background:#fff;font-weight:600;transition:.18s;white-space:nowrap}
.btn-mini.ok{background:var(--ok);color:#fff;border-color:var(--ok)}
.btn-mini.ok:hover{filter:brightness(1.08)}
.btn-mini.no{color:var(--danger);border-color:#EBD0CC;background:#fff}
.btn-mini.no:hover{background:var(--clay-soft)}
.btn-mini.more:hover{border-color:var(--bronze);color:var(--bronze-2)}
.btn-mini[disabled]{opacity:.5;pointer-events:none}

.bar-track{height:7px;background:var(--paper-3);border-radius:var(--r-full);overflow:hidden}
.bar-fill{height:100%;border-radius:var(--r-full);transition:width .8s var(--ease)}

.mono{font-family:var(--mono);font-size:12.5px}

/* ---------- 16.5 后台辅助组件 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-strip-item{
  padding:26px 20px;text-align:center;border-right:1px solid var(--line);
}
.stat-strip-item:last-child{border-right:0}
.stat-strip-item b{
  display:block;font-family:var(--serif);font-size:clamp(24px,3vw,32px);
  font-weight:700;color:var(--bronze-2);line-height:1.2;letter-spacing:.5px;
}
.stat-strip-item span{font-size:13.5px;color:var(--muted);margin-top:4px;display:block}

.stack-list{display:grid;gap:10px}
.stack-item{
  display:flex;justify-content:space-between;align-items:center;
  padding:12px 16px;border-radius:var(--r-sm);
  background:var(--bronze-soft);border:1px solid #E7DAC6;font-size:14px;color:var(--bronze-2);
}
.stack-item b{font-weight:700;font-size:16px}
.stack-item.olive{background:var(--olive-soft);border-color:#D6E3D2;color:#3F5C40}

.bar-list{display:grid;gap:18px}
.bar-row{display:grid;gap:7px}
.bar-head{display:flex;justify-content:space-between;align-items:baseline;font-size:14px}
.bar-head b{font-weight:700;color:var(--bronze-2)}

/* ---------- 17. 空态 / 加载 ---------- */.empty{
  text-align:center;padding:80px 24px;color:var(--muted);
  background:var(--surface);border:1px dashed var(--line-3);border-radius:var(--r-md);
}
.empty .icon{font-size:44px;margin-bottom:14px;opacity:.55}
.empty h4{font-family:var(--serif);font-size:19px;color:var(--ink);margin-bottom:8px}
.empty p{font-size:14px;max-width:420px;margin:0 auto 20px}

.skeleton{background:linear-gradient(90deg,var(--paper-2) 25%,var(--paper-3) 37%,var(--paper-2) 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:var(--r-xs)}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- 18. 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 19. 返回顶部 ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;width:46px;height:46px;
  border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;
  box-shadow:var(--sh-3);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:.25s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--bronze-2);transform:translateY(-3px)}

/* ---------- 20. 响应式 ---------- */
@media(max-width:1080px){
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .plan-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .hero-inner{gap:38px}
}
@media(max-width:980px){
  .hero-inner{grid-template-columns:1fr;padding:60px 0 66px}
  .hero-visual{max-width:520px}
  .detail-layout{grid-template-columns:1fr}
  .side-card{position:static}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .biz-grid{grid-template-columns:repeat(2,1fr)}
  .grid-side{grid-template-columns:1fr}
  .admin-shell{grid-template-columns:1fr}
  .admin-side{position:relative;height:auto;padding:18px}
  .admin-nav{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));display:grid}
  .admin-main{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:760px){
  :root{--gutter:18px}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;left:0;right:0;top:var(--header-h);
    flex-direction:column;align-items:stretch;gap:2px;
    background:var(--paper);border-bottom:1px solid var(--line);
    padding:12px var(--gutter) 20px;margin:0;
    box-shadow:var(--sh-3);
    display:none;
    max-height:calc(100vh - var(--header-h));overflow-y:auto;
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px}
  .nav-item .drop-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 8px 12px;background:none;min-width:0}
  .nav-mobile-only{display:block}
  .nav-desktop-only{display:none !important}
  .uc-name{display:none}
  .user-chip{padding:4px}
  .header-inner{gap:10px}
  .brand-text small{display:none}
  .brand-text b{font-size:18px;letter-spacing:2px}
  .brand-mark{width:36px;height:36px;font-size:19px;border-radius:10px}
  .grid-2,.grid-3,.grid-4,.related-grid,.biz-grid,.plan-grid,.stat-grid,.form-grid{grid-template-columns:1fr}
  .thumbs{grid-template-columns:repeat(3,1fr)}
  .list-row{flex-direction:column}
  .list-thumb{width:100%;aspect-ratio:16/9}
  .hero-collage{grid-template-columns:1fr 1fr}
  .cta{padding:38px 28px}
  .section{padding:52px 0}
  .footer-grid{grid-template-columns:1fr}
  .prose{font-size:15.5px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .stat-strip-item{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
  .stat-strip-item:nth-child(2n){border-right:0}
  .stat-strip-item:nth-last-child(-n+2){border-bottom:0}
  .side-card{padding:22px}
  .hero-float{right:0;bottom:-14px;padding:12px 15px;min-width:170px}
  .hero-float .fl-num{font-size:23px}
  .hero-lead{font-size:15px;line-height:1.8}
  .hero h1{font-size:clamp(28px,8vw,36px)}
  .toolbar{padding:12px 14px}
  .toolbar-right{width:100%;margin-left:0}
  .toolbar-right .input,.toolbar-right .select{flex:1;width:auto !important}
}

/* 国产浏览器 gap 兜底 */
@supports not (gap: 1rem){
  .grid{gap:0}
  .grid>*{margin:0 13px 13px 0}
  .header-actions{gap:0}
  .header-actions>*{margin-left:10px}
  .hero-cta{gap:0}
  .hero-cta>*{margin-right:13px}
  .toolbar{gap:0}
  .toolbar>*{margin-right:14px}
  .toolbar-right{margin-left:0}
  .footer-grid{gap:0}
  .footer-grid>*{margin-right:40px;margin-bottom:30px}
  .stat-grid{gap:0}
  .stat-grid>*{margin:0 9px 18px 0}
  .plan-grid{gap:0}
  .plan-grid>*{margin:0 10px 20px 0}
  .kv{gap:0}
  .kv dt,.kv dd{padding:5px 0}
  .card-foot{gap:0}
  .card-foot>*{margin-right:14px}
}

/* 尊重系统的减少动效设置 */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}