/* ============================================================
   KAITONG 凯通汽配出口站 · 黑金影院风格 (方案 A)
   ============================================================ */
:root{
  --black:#0b0c0d;
  --ink:#101113;
  --ink-2:#16181b;
  --line:#26282b;
  --gold:#f4cf7d;
  --gold-deep:#d8ab50;
  --gold-soft:rgba(244,207,125,.14);
  --cream:#fff7e0;
  --paper:#f6f5f1;
  --paper-2:#ffffff;
  --text-d:#e9e7e2;      /* 暗底文字 */
  --text-d-dim:#9a9c9f;
  --text-l:#1c1d1f;      /* 亮底文字 */
  --text-l-dim:#6a6c70;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
  --shadow-card:0 12px 32px rgba(20,18,12,.10);
  --font-head:"Sora",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --maxw:1180px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}   /* 关键：类选择器的 display 会压过 hidden 属性，这里强制兜底 */
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-body);background:var(--paper);color:var(--text-l);
  -webkit-font-smoothing:antialiased;line-height:1.55;
}
[dir="rtl"]{direction:rtl}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--font-head);font-weight:700;letter-spacing:-.02em;line-height:1.12;margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.gold{color:var(--gold)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-head);font-weight:600;font-size:15px;cursor:pointer;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease,color .2s;white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:#1c150a;box-shadow:0 8px 26px rgba(216,171,80,.35)}
.btn-gold:hover{box-shadow:0 12px 34px rgba(216,171,80,.5)}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--cream);border-color:rgba(244,207,125,.45)}
.btn-ghost:hover{background:rgba(244,207,125,.14)}
.btn-line{background:transparent;color:var(--text-l);border-color:#d8d6cf}
.btn-line:hover{border-color:var(--gold-deep);color:var(--gold-deep)}
.full-w{width:100%}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:60;background:rgba(11,12,13,.82);
  backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:11px;color:var(--text-d)}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-family:var(--font-head);font-weight:800;font-size:20px;color:#1c150a;
  background:linear-gradient(135deg,var(--gold),var(--gold-deep));box-shadow:0 4px 14px rgba(216,171,80,.4);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-family:var(--font-head);font-size:16px;letter-spacing:.06em}
.brand-text em{font-style:normal;font-size:11px;color:var(--gold);letter-spacing:.02em}
.nav{display:flex;gap:26px;margin-inline-start:auto}
.nav a{color:var(--text-d-dim);font-size:15px;font-weight:500;position:relative;padding:4px 0}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--gold);transition:width .25s}
.nav a:hover{color:var(--cream)}
.nav a:hover::after{width:100%}
.topbar-actions{display:flex;align-items:center;gap:8px}
.icon-btn{
  display:inline-flex;align-items:center;gap:6px;background:transparent;border:1px solid transparent;
  color:var(--text-d-dim);font-family:var(--font-body);font-size:14px;font-weight:500;
  padding:8px 12px;border-radius:999px;cursor:pointer;transition:.18s;position:relative;
}
.icon-btn:hover{color:var(--cream);background:rgba(255,255,255,.06)}
.cart-btn .cart-count{
  position:absolute;top:0;inset-inline-end:2px;min-width:17px;height:17px;padding:0 4px;
  background:var(--gold);color:#1c150a;border-radius:999px;font-size:11px;font-weight:700;
  display:grid;place-items:center;
}
.lang-select{position:relative}
.lang-menu{
  position:absolute;top:calc(100% + 8px);inset-inline-end:0;width:200px;max-height:340px;overflow:auto;
  background:var(--ink-2);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);
  padding:6px;z-index:80;
}
.lang-menu button{
  display:flex;width:100%;justify-content:space-between;gap:8px;background:transparent;border:0;
  color:var(--text-d);padding:9px 12px;border-radius:8px;cursor:pointer;font-size:14px;text-align:start;
}
.lang-menu button:hover{background:var(--gold-soft);color:var(--cream)}
.lang-menu button .nat{color:var(--text-d-dim);font-size:12px}
.hamburger{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:8px}
.hamburger span{width:22px;height:2px;background:var(--cream);border-radius:2px}

/* ---------- HERO · 黑金影院 ---------- */
.hero{position:relative;min-height:92vh;display:flex;align-items:center;overflow:hidden;background:#050506}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-sky{position:absolute;inset:0;background:
  radial-gradient(70% 50% at 50% 8%, #1d1e22 0%, #101113 38%, #050506 72%),
  radial-gradient(40% 30% at 50% 60%, rgba(244,207,125,.08), transparent 70%);}
/* 透视反光地面 */
.hero-floor{position:absolute;left:0;right:0;bottom:0;height:46%;background:
  linear-gradient(to top, #0a0b0d 0%, #050506 70%, transparent 100%);}
.hero-grid{position:absolute;left:-20%;right:-20%;bottom:0;height:50%;
  background-image:
    linear-gradient(rgba(244,207,125,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244,207,125,.07) 1px, transparent 1px);
  background-size:90px 90px;
  transform:perspective(420px) rotateX(64deg);transform-origin:bottom center;
  -webkit-mask-image:linear-gradient(to top, #000 0%, rgba(0,0,0,.4) 35%, transparent 75%);
          mask-image:linear-gradient(to top, #000 0%, rgba(0,0,0,.4) 35%, transparent 75%);}
.hero-vignette{position:absolute;inset:0;pointer-events:none;background:
  radial-gradient(75% 65% at 50% 42%, transparent 38%, rgba(0,0,0,.66) 100%);}

/* 真车照片舞台：大灯在黑暗中亮起（已去车标） */
.hero-stage{position:absolute;left:0;right:0;bottom:0;height:70%;overflow:hidden;pointer-events:none}
.hero-photo{width:100%;height:100%;object-fit:cover;object-position:center 70%;
  opacity:0;animation:photoIn 2.6s cubic-bezier(.2,.7,.2,1) .2s forwards;
  -webkit-mask-image:linear-gradient(to top, transparent 0%, #000 15%, #000 82%, transparent 100%);
          mask-image:linear-gradient(to top, transparent 0%, #000 15%, #000 82%, transparent 100%)}
/* 场景从黑暗中浮现 + 亮度点火 */
@keyframes photoIn{
  0%{opacity:0;transform:scale(1.06);filter:brightness(.28) contrast(1.12) saturate(.9)}
  45%{opacity:1;filter:brightness(.5) contrast(1.1) saturate(.92)}
  100%{opacity:1;transform:scale(1);filter:brightness(1.03) contrast(1.06) saturate(.96)}}
/* 暖金叠色：把中性白车灯往金色拉一点，呼应主题 */
.hero-photo-warm{position:absolute;inset:0;mix-blend-mode:soft-light;pointer-events:none;
  background:
    radial-gradient(60% 50% at 50% 74%, rgba(244,207,125,.5), transparent 70%),
    linear-gradient(to top, rgba(244,207,125,.12), transparent 55%);
  opacity:0;animation:fadeIn 2s ease 1s forwards}
/* 大灯缓慢亮起：两侧灯位发光，先闪再稳定 */
.hero-photo-glow{position:absolute;inset:0;mix-blend-mode:screen;pointer-events:none;opacity:0;
  background:
    radial-gradient(16% 12% at 15.5% 70%, rgba(255,248,228,.95), rgba(244,207,125,.28) 42%, transparent 72%),
    radial-gradient(16% 12% at 81% 70%, rgba(255,248,228,.95), rgba(244,207,125,.28) 42%, transparent 72%);
  animation:ignite 2.6s cubic-bezier(.3,.1,.2,1) 1.1s both}
@keyframes fadeIn{to{opacity:1}}

/* 金尘粒子 */
.particles{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.particles span{position:absolute;bottom:-10px;width:3px;height:3px;border-radius:50%;
  background:rgba(244,207,125,.7);box-shadow:0 0 6px rgba(244,207,125,.8);
  animation-name:rise;animation-timing-function:linear;animation-iteration-count:infinite}

@keyframes draw{to{stroke-dashoffset:0}}
@keyframes ignite{0%{opacity:0}9%{opacity:.85}13%{opacity:.12}19%{opacity:.95}26%{opacity:.3}33%{opacity:1}100%{opacity:1}}
@keyframes beamOn{0%{opacity:0}33%{opacity:0}40%{opacity:.55}46%{opacity:.12}54%{opacity:.7}100%{opacity:.6}}
@keyframes rise{0%{transform:translateY(0);opacity:0}10%{opacity:1}90%{opacity:1}100%{transform:translateY(-78vh);opacity:0}}
@media(prefers-reduced-motion:reduce){.hero-photo,.hero-photo-warm,.particles span{animation:none!important;opacity:1;transform:none}}

.hero-content{position:relative;z-index:2;padding-top:60px;padding-bottom:150px;max-width:760px}
.kicker{font-family:var(--font-head);font-size:13px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);margin:0 0 18px}
.hero-title{font-size:clamp(40px,6.4vw,76px);font-weight:800;color:var(--cream);letter-spacing:-.03em}
.hero-sub{margin:22px 0 30px;color:var(--text-d-dim);font-size:clamp(15px,2vw,18px);max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 实力条 ---------- */
.strength{background:var(--ink);border-block:1px solid var(--line)}
.strength-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;padding:26px 24px}
.st-item{display:flex;flex-direction:column;align-items:center;gap:5px;text-align:center;padding:6px;border-inline-start:1px solid var(--line)}
.st-item:first-child{border:0}
.st-num{font-family:var(--font-head);font-weight:700;font-size:clamp(20px,2.6vw,28px);color:var(--gold)}
.st-label{font-size:12.5px;color:var(--text-d-dim);letter-spacing:.04em}

/* ---------- 通用 section head ---------- */
.sec-head{text-align:center;max-width:680px;margin:0 auto 40px}
.sec-kicker{font-family:var(--font-head);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-deep);margin:0 0 12px}
.sec-head h2{font-size:clamp(28px,4vw,42px)}
.sec-desc{color:var(--text-l-dim);margin:14px 0 0;font-size:16px}

/* ---------- 选车区 ---------- */
.select{padding:84px 0 40px;background:var(--paper)}
.filter-card{background:var(--paper-2);border:1px solid #ebe9e2;border-radius:var(--radius);box-shadow:var(--shadow-card);padding:28px;max-width:1000px;margin:0 auto}
.catalog-search{margin-bottom:18px}
.filter-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.filter-grid.more{grid-template-columns:repeat(5,1fr);margin-top:16px;padding-top:18px;border-top:1px dashed #e3e1d9}
.field{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:600;color:var(--text-l-dim)}
.field span{font-family:var(--font-head);letter-spacing:.02em}
.field input,.field select,.field textarea{
  font-family:var(--font-body);font-size:15px;color:var(--text-l);font-weight:500;
  padding:11px 13px;border:1px solid #dcdad2;border-radius:var(--radius-sm);background:#fcfbf8;
  transition:border .15s,box-shadow .15s;width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--gold-deep);box-shadow:0 0 0 3px var(--gold-soft);
}
.more-toggle{margin-top:18px;background:none;border:0;color:var(--gold-deep);font-family:var(--font-head);font-weight:600;cursor:pointer;font-size:14px}
.filter-actions{display:flex;gap:12px;margin-top:22px}

/* ---------- 产品 ---------- */
.products{padding:48px 0 90px;background:var(--paper)}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.catalog-state{text-align:center;padding:28px;color:var(--text-l-dim)}
.catalog-error{color:#a63828}
.catalog-error .btn{margin-inline-start:12px}
.product-card{background:var(--paper-2);border:1px solid #ebe9e2;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;transition:transform .18s,box-shadow .2s}
.product-card:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(20,18,12,.16)}
.pc-img{aspect-ratio:4/3;background:linear-gradient(135deg,#15161a,#0c0d0f);display:grid;place-items:center;position:relative}
.pc-badge{font-family:var(--font-head);font-weight:800;font-size:30px;color:var(--gold);opacity:.85;letter-spacing:.08em}
.pc-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.pc-badge-bg{opacity:.18}
.product-card{cursor:default}
.pc-video{position:absolute;top:10px;inset-inline-end:10px;z-index:2;width:30px;height:30px;border-radius:50%;background:rgba(0,0,0,.55);color:#fff;display:grid;place-items:center;font-size:11px;border:1px solid rgba(255,255,255,.45)}
.pc-vtag{background:var(--gold-soft)!important;color:var(--gold-deep)!important}
.cl-img img{width:100%;height:100%;object-fit:cover;border-radius:10px}

/* 产品详情弹窗 */
.pm-modal{width:min(560px,94vw)}
.product-dialog{width:min(920px,94vw);max-height:90vh;overflow:auto;border:1px solid var(--line);border-radius:18px;background:var(--ink);color:var(--text-d);padding:26px;box-shadow:var(--shadow)}
.product-dialog::backdrop{background:rgba(0,0,0,.72);backdrop-filter:blur(3px)}
.dialog-close-form{position:sticky;top:0;z-index:3;display:flex;justify-content:flex-end;height:0}
.dialog-close-form .x{background:var(--ink-2);color:var(--cream);border:1px solid var(--line);border-radius:50%;width:36px;height:36px;cursor:pointer}
.detail-layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);gap:28px;margin-top:18px}
.detail-main-image{width:100%;height:100%;object-fit:contain}
.pm-thumb-button{border:0;background:transparent;padding:0;cursor:pointer}
.pm-video-button{height:62px;padding:0 14px;border:1px solid var(--line);border-radius:8px;background:#000;color:var(--gold)}
.media-placeholder,.media-diagnostic{color:var(--text-d-dim);font-size:12px;text-align:center;padding:12px}
.detail-main-video{width:100%;height:100%;background:#000}
.detail-controls{display:flex;flex-direction:column;gap:14px}
.detail-controls .field{color:var(--text-d-dim)}
.detail-controls .field input,.detail-controls .field select{background:var(--ink-2);border-color:var(--line);color:var(--text-d)}
.detail-fitment{color:var(--gold);font-size:13px;margin:0}
.tier-list{display:grid;gap:6px;padding:12px;border-radius:10px;background:var(--ink-2)}
.tier-row{color:var(--text-d-dim);font-size:13px}
.detail-price{font:700 22px var(--font-head);color:var(--gold)}
.quote-message{min-height:24px;margin:0;color:var(--text-d-dim);font-size:13px}
.attribute-list{display:grid;grid-template-columns:max-content 1fr;gap:6px 12px;margin:0;padding:12px;background:var(--ink-2);border-radius:10px;font-size:13px}
.attribute-list dt{color:var(--text-d-dim)}
.attribute-list dd{margin:0;color:var(--text-d)}
.pm-main{aspect-ratio:4/3;background:linear-gradient(135deg,#15161a,#0a0b0d);border-radius:12px;display:grid;place-items:center;overflow:hidden;margin-bottom:10px}
.pm-main img,.pm-main video{width:100%;height:100%;object-fit:contain;background:#000}
.pm-media{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.pm-thumb{width:62px;height:62px;object-fit:cover;border-radius:8px;border:1px solid var(--line);cursor:pointer}
.pm-thumb.active{border-color:var(--gold)}
.pm-thumb-video{display:inline-grid;place-items:center;background:#000;color:var(--gold);font-size:16px}
.pm-title{color:var(--cream);font-size:18px;margin-bottom:10px}
.pm-meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.pm-meta span{font-size:12px;background:var(--ink-2);border:1px solid var(--line);color:var(--text-d-dim);padding:3px 9px;border-radius:6px}
.pm-desc{color:var(--text-d-dim);font-size:14px;line-height:1.7;margin-bottom:16px;white-space:pre-line}
.pm-variants{width:100%;border-collapse:collapse;font-size:14px}
.pm-variants th,.pm-variants td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:start;color:var(--text-d)}
.pm-variants th{color:var(--text-d-dim);font-size:12px;font-weight:600}
.pm-variants td:nth-child(2){color:var(--gold);font-family:var(--font-head);font-weight:600}
.btn-mini{background:var(--gold);color:#1c150a;border:0;border-radius:999px;padding:6px 14px;font-family:var(--font-head);font-weight:600;font-size:12px;cursor:pointer}
.pm-buy{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:6px}
.pm-price{font-family:var(--font-head);font-weight:700;font-size:24px;color:var(--gold)}
.pc-cond{position:absolute;top:10px;inset-inline-start:10px;background:var(--gold);color:#1c150a;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px}
.pc-body{padding:16px;display:flex;flex-direction:column;gap:9px;flex:1}
.pc-tags{display:flex;flex-wrap:wrap;gap:6px}
.pc-tags span{font-size:11px;background:#f2efe6;color:var(--text-l-dim);padding:3px 8px;border-radius:6px}
.pc-title{font-family:var(--font-head);font-weight:600;font-size:15.5px;color:var(--text-l);line-height:1.3}
.pc-desc{font-size:13px;color:var(--text-l-dim);flex:1}
.pc-foot{display:flex;align-items:center;justify-content:space-between;margin-top:6px}
.pc-price{font-family:var(--font-head);font-weight:700;font-size:19px;color:var(--text-l)}
.pc-add{background:var(--ink);color:var(--cream);border:0;border-radius:999px;padding:9px 16px;font-family:var(--font-head);font-weight:600;font-size:13px;cursor:pointer;transition:.18s}
.pc-add:hover{background:var(--gold-deep);color:#1c150a}
.no-product{text-align:center;padding:48px 20px;color:var(--text-l-dim)}
.no-product p{margin-bottom:18px;font-size:17px}

/* ---------- 供应链 ---------- */
.supply{background:
  radial-gradient(90% 120% at 80% 0%, #1c1d20 0%, #0b0c0d 60%);
  color:var(--text-d);padding:96px 0;border-block:1px solid var(--line)}
.supply-inner{max-width:820px;text-align:center;margin:0 auto}
.supply-title{font-size:clamp(28px,4.4vw,46px);color:var(--cream);margin:14px 0 22px}
.supply-text{color:var(--text-d-dim);font-size:clamp(15px,2vw,18px);line-height:1.8}
.supply-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:30px}
.supply-tags span{border:1px solid rgba(244,207,125,.4);color:var(--gold);font-size:13px;padding:8px 16px;border-radius:999px;background:rgba(244,207,125,.05)}

/* ---------- 视频 ---------- */
.video{padding:90px 0;background:var(--paper)}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.video-card{aspect-ratio:16/10;border-radius:var(--radius);background:linear-gradient(135deg,#15161a,#0a0d0f);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;color:var(--text-d-dim);border:1px solid var(--line);transition:.2s}
.video-card:hover{border-color:var(--gold-deep)}
.video-card .play{width:56px;height:56px;border-radius:50%;background:var(--gold-soft);color:var(--gold);display:grid;place-items:center;font-size:20px;border:1px solid rgba(244,207,125,.4)}

/* ---------- 联系 ---------- */
.contact{padding:90px 0;background:var(--ink);color:var(--text-d)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact h2{color:var(--cream)}
.contact .sec-desc{color:var(--text-d-dim)}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.contact-form .field span{color:var(--text-d-dim)}
.contact-form .field input,.contact-form .field textarea{background:var(--ink-2);border-color:var(--line);color:var(--text-d)}
.contact-form .field.full{grid-column:1/-1}
.contact-form .btn{grid-column:1/-1}
.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}
.cc{display:flex;flex-direction:column;gap:2px;background:var(--ink-2);border:1px solid var(--line);border-radius:12px;padding:14px 16px;transition:.18s}
a.cc:hover{border-color:var(--gold-deep)}
.cc-ico{font-size:20px;margin-bottom:4px}
.cc b{font-family:var(--font-head);font-size:13px;color:var(--cream)}
.cc em{font-style:normal;font-size:13px;color:var(--text-d-dim)}
.map{height:300px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#0c0d0f}
.leaflet-container{background:#0c0d0f}

/* ---------- 页脚 ---------- */
.footer{background:var(--black);color:var(--text-d-dim);padding:26px 0;border-top:1px solid var(--line)}
.footer-inner{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px}
.footer-note{color:var(--gold-deep)}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:90;backdrop-filter:blur(2px)}
.drawer{position:fixed;top:0;inset-inline-end:0;height:100%;width:min(420px,100%);background:var(--ink);color:var(--text-d);z-index:100;display:flex;flex-direction:column;box-shadow:var(--shadow);animation:slideIn .28s ease}
[dir="rtl"] .drawer{animation:slideInR .28s ease}
@keyframes slideIn{from{transform:translateX(100%)}to{transform:translateX(0)}}
@keyframes slideInR{from{transform:translateX(-100%)}to{transform:translateX(0)}}
/* 居中弹窗（登录/注册）：点击才出现，不占满屏 */
.modal{top:50%;inset-inline-end:auto;left:50%;height:auto;max-height:90vh;width:min(404px,92vw);
  border:1px solid var(--line);border-radius:20px;overflow:hidden;
  transform:translate(-50%,-50%);animation:modalIn .26s cubic-bezier(.2,.7,.2,1)}
[dir="rtl"] .modal{animation:modalIn .26s cubic-bezier(.2,.7,.2,1)}
.modal .drawer-body{padding:24px 24px 28px}
@keyframes modalIn{from{opacity:0;transform:translate(-50%,-46%) scale(.96)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}

.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--line)}
.drawer-head h3{color:var(--cream)}
.x{background:none;border:0;color:var(--text-d-dim);font-size:28px;cursor:pointer;line-height:1}
.drawer-body{flex:1;overflow:auto;padding:20px 22px}
.drawer-foot{padding:18px 22px;border-top:1px solid var(--line)}
.cart-total{display:flex;justify-content:space-between;margin-bottom:14px;font-size:15px}
.cart-total b{font-family:var(--font-head);font-size:20px;color:var(--gold)}
.cart-line{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.cart-line .cl-img{width:60px;height:60px;border-radius:10px;background:linear-gradient(135deg,#15161a,#0a0b0d);display:grid;place-items:center;color:var(--gold);font-weight:800;flex:none}
.cart-line .cl-info{flex:1;font-size:14px}
.cart-line .cl-info b{display:block;color:var(--cream);font-weight:600;margin-bottom:4px}
.cart-line .cl-info small{color:var(--text-d-dim)}
.cl-qty{display:flex;align-items:center;gap:8px;margin-top:6px}
.cl-qty button{width:24px;height:24px;border-radius:6px;border:1px solid var(--line);background:var(--ink-2);color:var(--cream);cursor:pointer}
.cl-rm{background:none;border:0;color:var(--text-d-dim);cursor:pointer;font-size:12px}
.empty{color:var(--text-d-dim);text-align:center;padding:40px 0}
.acc-form{display:flex;flex-direction:column;gap:14px}
.acc-form .field span{color:var(--text-d-dim)}
.acc-form input{background:var(--ink-2);border-color:var(--line);color:var(--text-d)}
.code-input{display:flex;gap:8px}
.code-input input{flex:1}
.acc-switch{text-align:center;font-size:14px;color:var(--text-d-dim);margin-top:4px}
.acc-switch a{color:var(--gold);font-weight:600}
.disabled-feature{display:contents;border:0;padding:0;margin:0}
button:disabled,input:disabled,select:disabled,textarea:disabled{cursor:not-allowed;opacity:.58}

/* ---------- toast ---------- */
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:var(--ink-2);color:var(--cream);border:1px solid var(--gold-deep);padding:14px 24px;border-radius:999px;z-index:200;font-size:14px;box-shadow:var(--shadow);animation:toastIn .3s}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%,0)}}

/* ---------- 响应式 ---------- */
@media(max-width:920px){
  .nav{display:none}
  .nav.open{display:flex;position:absolute;top:68px;inset-inline-end:0;left:0;flex-direction:column;background:var(--ink);padding:18px 24px;gap:14px;border-bottom:1px solid var(--line)}
  .hamburger{display:flex}
  .filter-grid,.filter-grid.more{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .video-grid{grid-template-columns:1fr}
  .strength-grid{grid-template-columns:repeat(3,1fr);gap:18px}
  .detail-layout{grid-template-columns:1fr}
  .st-item:nth-child(4){border:0}
}
@media(max-width:560px){
  .wrap{padding:0 18px}
  .topbar-actions .icon-btn span{display:none}
  .filter-grid,.filter-grid.more{grid-template-columns:1fr 1fr}
  .product-grid{grid-template-columns:1fr}
  .product-dialog{width:100vw;max-width:none;max-height:100vh;height:100vh;margin:0;border-radius:0;padding:18px}
  .contact-form{grid-template-columns:1fr}
  .contact-cards{grid-template-columns:1fr}
  .hero-content{padding-bottom:90px}
  .strength-grid{grid-template-columns:repeat(2,1fr)}
  .st-item{border:0}
}