/* ===== 拾光唐卡 · 唐卡艺术礼品站 样式 ===== */
:root{
  --ink:#160f29;
  --ink-2:#211733;
  --panel:#2a1d44;
  --panel-2:#33244f;
  --maroon:#8c2435;
  --maroon-2:#b8324a;
  --gold:#c9a227;
  --gold-light:#ecc94b;
  --turq:#2f9e8f;
  --cream:#f4ecd8;
  --cream-dim:#c7b394;
  --line:rgba(201,162,39,.32);
  --serif:"Noto Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --tib:"Noto Sans Tibetan","Microsoft Himalaya","BabelStone Tibetan",sans-serif;
  --shadow:0 18px 50px rgba(0,0,0,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink);
  color:var(--cream);
  font-family:var(--sans);
  line-height:1.85;
  font-size:16px;
  overflow-x:hidden;
  /* subtle mineral texture */
  background-image:
    radial-gradient(circle at 12% 8%,rgba(140,36,53,.18),transparent 38%),
    radial-gradient(circle at 88% 22%,rgba(47,158,143,.14),transparent 40%),
    radial-gradient(circle at 50% 100%,rgba(201,162,39,.10),transparent 55%);
  background-attachment:fixed;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.tib{font-family:var(--tib);color:var(--gold-light);letter-spacing:.04em}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.gold{color:var(--gold-light)}

/* ===== 导航 ===== */
header.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(22,15,41,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--serif);color:var(--cream)}
.brand .logo{height:38px;width:38px;flex:0 0 auto;filter:drop-shadow(0 0 6px rgba(201,162,39,.35))}
.brand .word{display:flex;flex-direction:column;line-height:1.06}
.brand .zh{font-size:20px;font-weight:700;letter-spacing:.08em}
.brand .en{font-size:9.5px;color:var(--cream-dim);letter-spacing:.26em;font-family:var(--sans);font-weight:500;margin-top:2px}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:15px;color:var(--cream-dim);position:relative;transition:color .25s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--gold-light);transition:width .25s}
.nav-links a:hover,.nav-links a.active{color:var(--cream)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:0;padding:6px}
.burger span{width:24px;height:2px;background:var(--cream);display:block}

/* ===== 通用区块 ===== */
section{padding:84px 0}
.eyebrow{font-size:13px;letter-spacing:.34em;color:var(--gold);text-transform:uppercase;font-family:var(--sans);margin-bottom:14px}
.h-title{font-family:var(--serif);font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.25;margin-bottom:18px}
.h-title .tib{display:block;font-size:.5em;font-weight:400;margin-top:8px;opacity:.85}
.lead{font-size:17px;color:var(--cream-dim);max-width:760px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:0}

/* ===== Hero ===== */
.hero{position:relative;padding:96px 0 88px;overflow:hidden}
.hero .mandala-bg{position:absolute;top:-160px;right:-160px;width:620px;height:620px;opacity:.16;pointer-events:none;animation:spin 90s linear infinite}
.hero-inner{position:relative;z-index:2;max-width:820px}
.hero h1{font-family:var(--serif);font-size:clamp(40px,7vw,78px);line-height:1.06;font-weight:800;letter-spacing:.02em}
.hero h1 .tib{display:block;font-size:.34em;font-weight:400;margin-top:14px;color:var(--gold-light)}
.hero .tag{margin-top:26px;font-size:20px;color:var(--cream);max-width:620px}
.hero .tag b{color:var(--gold-light);font-weight:700}
.hero .cta{margin-top:38px;display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s;border:1px solid transparent}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-light));color:#241a06;box-shadow:0 10px 28px rgba(201,162,39,.35)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(201,162,39,.5)}
.btn-ghost{border-color:var(--line);color:var(--cream)}
.btn-ghost:hover{background:rgba(201,162,39,.12);transform:translateY(-3px)}

/* 金线描边卡片 */
.card{
  background:linear-gradient(160deg,var(--panel),var(--ink-2));
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  transition:transform .3s,box-shadow .3s,border-color .3s;
  position:relative;
}
.card::before{content:"";position:absolute;inset:7px;border:1px solid rgba(201,162,39,.18);border-radius:12px;pointer-events:none}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:rgba(201,162,39,.6)}

/* 唐卡卡片网格 */
.grid{display:grid;gap:28px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.tk-card .tk-img{aspect-ratio:3/4;overflow:hidden;position:relative;background:#0f0a1d}
.tk-card .tk-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.tk-card:hover .tk-img img{transform:scale(1.06)}
.tk-card .tk-body{padding:18px 18px 22px}
.tk-card .tk-name{font-family:var(--serif);font-size:21px;font-weight:700;display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.tk-card .tk-name .tib{font-size:14px;font-weight:400}
.tk-role{display:inline-block;margin-top:8px;font-size:13px;color:var(--gold-light);border:1px solid var(--line);padding:3px 12px;border-radius:999px}
.tk-soul{margin-top:12px;font-size:14.5px;color:var(--cream-dim);font-style:italic;line-height:1.7}
.tk-gift{margin-top:14px;font-size:13px;color:var(--turq)}
.tk-gift b{color:var(--cream)}

/* 灵魂区块 */
.soul-box{
  position:relative;background:linear-gradient(160deg,var(--panel-2),var(--ink-2));
  border:1px solid var(--line);border-radius:20px;padding:42px 40px;
  box-shadow:var(--shadow);
}
.soul-box::after{content:"“";position:absolute;top:6px;left:24px;font-family:var(--serif);font-size:120px;color:rgba(201,162,39,.22);line-height:1}
.soul-box .soul-text{font-family:var(--serif);font-size:clamp(20px,2.6vw,30px);line-height:1.7;position:relative;z-index:2}
.soul-box .soul-sign{margin-top:18px;font-size:14px;color:var(--cream-dim);text-align:right}

/* 送礼指南 */
.guide-card{display:flex;gap:22px;align-items:center;padding:22px}
.guide-card .g-ico{width:64px;height:64px;flex:0 0 64px;border-radius:50%;display:grid;place-items:center;background:rgba(201,162,39,.15);border:1px solid var(--line);font-size:30px}
.guide-card h3{font-family:var(--serif);font-size:21px;margin-bottom:4px}
.guide-card p{font-size:14.5px;color:var(--cream-dim)}

/* 工艺步骤 */
.steps{counter-reset:step;display:grid;gap:18px}
.step{display:flex;gap:18px;align-items:flex-start}
.step .num{counter-increment:step;flex:0 0 46px;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--gold),var(--gold-light));color:#241a06;font-weight:800;font-family:var(--serif)}
.step .num::before{content:counter(step)}
.step h4{font-family:var(--serif);font-size:18px;margin-bottom:3px}
.step p{font-size:14.5px;color:var(--cream-dim)}

/* 详情页 */
.detail-hero{display:grid;grid-template-columns:minmax(0,420px) 1fr;gap:48px;align-items:start;padding-top:56px}
.detail-img{border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:sticky;top:90px}
.detail-img img{width:100%;display:block}
.detail-meta .role-badge{display:inline-block;font-size:14px;color:var(--gold-light);border:1px solid var(--line);padding:5px 14px;border-radius:999px;margin-bottom:16px}
.detail-meta h1{font-family:var(--serif);font-size:clamp(32px,4.5vw,52px);line-height:1.1}
.detail-meta .tib{display:block;font-size:.5em;margin-top:8px;font-weight:400}
.spec{margin-top:22px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.spec div{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.spec .k{font-size:12px;color:var(--cream-dim);letter-spacing:.1em}
.spec .v{font-size:16px;margin-top:4px;color:var(--cream)}
.gift-tag{margin-top:22px;display:inline-flex;align-items:center;gap:10px;background:rgba(47,158,143,.12);border:1px solid rgba(47,158,143,.4);padding:12px 18px;border-radius:14px;font-size:15px}
.gift-tag b{color:var(--turq)}
.detail-body{padding:54px 0}
.detail-body h2{font-family:var(--serif);font-size:26px;margin:30px 0 12px}
.detail-body p{color:var(--cream-dim);font-size:16px;margin-bottom:14px}
.detail-body .tib{display:block;margin-bottom:6px}

/* 咨询表单 */
.form-grid{display:grid;gap:18px;max-width:560px}
.field label{display:block;font-size:14px;color:var(--cream-dim);margin-bottom:7px}
.field input,.field textarea,.field select{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:12px;padding:13px 15px;color:var(--cream);font-family:var(--sans);font-size:15px;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--gold-light)}
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
.contact-card{background:linear-gradient(160deg,var(--panel),var(--ink-2));border:1px solid var(--line);border-radius:16px;padding:24px;text-align:center}
.contact-card .ico{font-size:30px}
.contact-card h4{font-family:var(--serif);font-size:18px;margin:10px 0 6px}
.contact-card p{font-size:14px;color:var(--cream-dim)}
.form-ok{display:none;background:rgba(47,158,143,.14);border:1px solid rgba(47,158,143,.45);color:var(--cream);padding:16px 20px;border-radius:12px;margin-top:18px}
.form-ok.show{display:block}

/* 页脚 */
footer{background:var(--ink-2);border-top:1px solid var(--line);padding:54px 0 36px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px}
.foot-grid h4{font-family:var(--serif);font-size:17px;margin-bottom:14px;color:var(--gold-light)}
.foot-grid a{display:block;color:var(--cream-dim);font-size:14px;margin-bottom:9px;transition:color .2s}
.foot-grid a:hover{color:var(--cream)}
.foot-bottom{margin-top:36px;padding-top:22px;border-top:1px solid var(--line);font-size:13px;color:var(--cream-dim);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes shimmer{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
.shimmer{background:linear-gradient(90deg,var(--gold),var(--gold-light),var(--gold));background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shimmer 4s linear infinite}

/* 响应式 */
@media(max-width:960px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .detail-hero{grid-template-columns:1fr;gap:28px}
  .detail-img{position:static;max-width:360px}
  .contact-cards{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}
@media(max-width:680px){
  .nav-links{position:fixed;inset:68px 0 auto 0;flex-direction:column;background:var(--ink-2);padding:20px 24px;gap:18px;border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
  .burger{display:flex}
  .grid-4{grid-template-columns:1fr}
  section{padding:60px 0}
}