/* ===== 丝巾定制独立站 · 原型样式 ===== */
:root{
  --ivory:#F7F3EC;
  --paper:#FFFDF8;
  --ink:#1F1B18;
  --muted:#6B6258;
  --bordeaux:#8C1F2B;
  --bordeaux-d:#6E1620;
  --gold:#B8893E;
  --line:#E3DACB;
  --ok:#2E7D52;
  --warn:#B5471A;
  --shadow:0 8px 30px rgba(31,27,24,.08);
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:var(--ivory);line-height:1.7;font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:74px 0}
.section.alt{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{letter-spacing:.22em;text-transform:uppercase;font-size:12px;color:var(--gold);font-weight:700;margin-bottom:12px}
h1,h2,h3{line-height:1.25;font-weight:800}
h2{font-size:30px;margin-bottom:14px}
h3{font-size:20px;margin-bottom:8px}
.lead{color:var(--muted);font-size:17px;max-width:720px}

/* 按钮 */
.btn{display:inline-block;padding:13px 26px;border-radius:2px;font-weight:700;font-size:15px;cursor:pointer;border:1px solid transparent;transition:.18s}
.btn-primary{background:var(--bordeaux);color:#fff}
.btn-primary:hover{background:var(--bordeaux-d)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn[disabled]{opacity:.4;cursor:not-allowed}
.btn-lg{padding:16px 34px;font-size:17px}

/* 顶部导航 */
header.nav{position:sticky;top:0;z-index:50;background:rgba(247,243,236,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav .row{display:flex;align-items:center;justify-content:space-between;gap:18px;height:62px}
.brand{font-weight:800;font-size:16px;letter-spacing:.02em;white-space:nowrap}
.brand b{color:var(--bordeaux)}
.nav nav{display:flex;gap:13px;font-size:14px;flex-wrap:nowrap}
.nav nav a{color:var(--muted);font-weight:600;white-space:nowrap}
.nav nav a:hover{color:var(--bordeaux)}
.nav .wa{font-size:13px;font-weight:700;color:#fff;background:#25D366;padding:7px 12px;border-radius:2px;white-space:nowrap;flex-shrink:0}
.nav .wa:hover{opacity:.9}
.nav .lang{font-size:13px;font-weight:700;color:var(--muted);border:1px solid var(--line);padding:7px 12px;border-radius:2px;white-space:nowrap}
.nav .lang:hover{color:var(--bordeaux);border-color:var(--bordeaux)}
@media(max-width:1100px){.nav nav{gap:10px;font-size:13px}}
@media(max-width:860px){.nav nav{display:none}}

/* 入场页 */
.entrance{height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;position:relative;overflow:hidden;
  background:
    radial-gradient(120% 120% at 80% 10%, #c98a93 0%, transparent 55%),
    radial-gradient(120% 120% at 10% 90%, #8C1F2B 0%, transparent 50%),
    linear-gradient(135deg,#3a1419,#5a1d27 60%,#7a2533);
}
.entrance::after{content:"";position:absolute;inset:0;background:rgba(20,8,10,.28)}
.entrance .inner{position:relative;z-index:2;color:#fff;padding:0 22px}
.entrance .kicker{letter-spacing:.4em;text-transform:uppercase;font-size:13px;opacity:.85;margin-bottom:22px}
.entrance h1{font-size:clamp(44px,9vw,104px);font-weight:900;letter-spacing:.04em;text-shadow:0 6px 30px rgba(0,0,0,.35)}
.entrance .sub{margin-top:20px;font-size:clamp(16px,2.4vw,22px);opacity:.92;letter-spacing:.06em}
.entrance .enter{margin-top:42px}
.entrance .langswitch{margin-top:20px}
.entrance .langswitch a{display:inline-block;color:#fff;opacity:.82;border:1px solid rgba(255,255,255,.5);padding:10px 22px;border-radius:2px;font-size:14px;font-weight:600;letter-spacing:.04em}
.entrance .langswitch a:hover{opacity:1;background:rgba(255,255,255,.12)}
.entrance .enter a{display:inline-block;background:#fff;color:var(--bordeaux);padding:16px 42px;border-radius:2px;font-weight:800;font-size:18px;letter-spacing:.04em;box-shadow:var(--shadow)}
.entrance .enter a:hover{transform:translateY(-2px)}
.entrance .fine{position:relative;z-index:2;margin-top:46px;font-size:11px;opacity:.7;max-width:760px;padding:0 22px;line-height:1.6}
.entrance .fine b{color:#ffd9de}

/* Hero（首页） */
.hero{background:linear-gradient(135deg,#2a0f13,#5a1d27 70%,#7a2533);color:#fff;padding:96px 0 86px}
.hero h1{font-size:clamp(34px,6vw,62px);font-weight:900;letter-spacing:.02em}
.hero .sub{margin-top:18px;font-size:19px;opacity:.92;max-width:640px}
.hero .cta{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.hero .cta .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6)}

/* 信任条 */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:54px}
.trust .t{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:3px;padding:18px 16px;text-align:center}
.trust .t b{display:block;font-size:18px;margin-bottom:4px}
.trust .t span{font-size:13px;opacity:.85}
@media(max-width:760px){.trust{grid-template-columns:repeat(2,1fr)}}

/* 卡片网格 */
.grid{display:grid;gap:20px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){.grid.c3,.grid.c4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.grid.c3,.grid.c4,.grid.c2{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:4px;padding:24px;box-shadow:var(--shadow)}
.card h3{color:var(--bordeaux)}
.card .ph{height:120px;border-radius:3px;margin-bottom:14px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;letter-spacing:.1em;background:linear-gradient(135deg,#9c4a55,#6e1620)}
.step{background:var(--paper);border:1px solid var(--line);border-radius:4px;padding:26px 22px;position:relative}
.step .no{width:40px;height:40px;border-radius:50%;background:var(--bordeaux);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px}
.step h3{margin-bottom:6px}

/* 图片占位 */
.ph{background:linear-gradient(135deg,#b98a90,#7a2533);display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;letter-spacing:.08em;border-radius:4px}
.ph.tall{height:240px}
.ph.square{height:0;padding-bottom:100%}
.pic{width:100%;height:180px;object-fit:cover;border-radius:4px;display:block}
.card .pic{height:210px;margin-bottom:12px}
.hero-img{width:100%;height:360px;object-fit:cover;border-radius:6px;margin-top:26px;display:block}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery .pic{height:180px}
.gallery .ph{height:180px}
@media(max-width:760px){.gallery{grid-template-columns:repeat(2,1fr)}}

/* 表格 */
.tablewrap{overflow-x:auto;margin-top:18px;border:1px solid var(--line);border-radius:4px}
table{border-collapse:collapse;width:100%;min-width:640px;font-size:14px;background:var(--paper)}
th,td{border:1px solid var(--line);padding:11px 13px;text-align:left}
th{background:#f0e9dc;font-weight:700;color:var(--ink)}
tbody tr:nth-child(even){background:#fcf9f2}
.tag{display:inline-block;font-size:12px;padding:2px 9px;border-radius:20px;background:#f0e9dc;color:var(--muted);margin-right:6px}
.tag.red{background:#fbe6e8;color:var(--bordeaux)}
.tag.green{background:#e6f3ea;color:var(--ok)}

/* 提示框 */
.note{border-left:4px solid var(--bordeaux);background:#fbf3f1;padding:16px 18px;border-radius:0 4px 4px 0;margin:16px 0}
.note.warn{border-color:var(--warn);background:#fdf1ea}
.note.ok{border-color:var(--ok);background:#eef6f0}
.note b{color:var(--bordeaux)}
.note.warn b{color:var(--warn)}

/* 侵权横幅 */
.infringe{background:#1F1B18;color:#fff;text-align:center;padding:16px 18px;font-weight:700;letter-spacing:.02em;font-size:15px}
.infringe span{color:#ffd9de}

/* 结账 */
.checkout-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px}
@media(max-width:860px){.checkout-grid{grid-template-columns:1fr}}
.pay-opt{border:1px solid var(--line);border-radius:4px;padding:16px 18px;margin-bottom:12px;background:var(--paper)}
.pay-opt.sel{border-color:var(--bordeaux);box-shadow:0 0 0 2px rgba(140,31,43,.12)}
.pay-opt h4{font-size:16px;margin-bottom:4px}
.pay-opt p{font-size:13px;color:var(--muted)}
.pay-opt .bank{font-size:13px;background:#fbf3f1;border:1px dashed var(--bordeaux);border-radius:3px;padding:10px;margin-top:10px}
.hidden{display:none}
.summary{background:var(--paper);border:1px solid var(--line);border-radius:4px;padding:22px}
.summary .line{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--line)}
.summary .total{border-bottom:none;font-size:19px;font-weight:800;color:var(--bordeaux);padding-top:14px}

/* 上传 */
.drop{border:2px dashed var(--line);border-radius:6px;padding:46px 20px;text-align:center;background:var(--paper);cursor:pointer;transition:.18s}
.drop:hover{border-color:var(--bordeaux);background:#fdf6f4}
.drop b{font-size:17px}
.check{display:flex;gap:12px;align-items:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:4px;padding:14px 16px;margin:12px 0}
.check input{margin-top:5px;width:18px;height:18px;accent-color:var(--bordeaux)}
.check label{font-size:14px}
.check.en{background:#fbf3f1;border-color:#eccfcf}

/* 表单 */
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;margin-bottom:6px;font-size:14px}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:3px;font:inherit;background:#fff}
.field textarea{min-height:110px}

/* 浮动 WhatsApp */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:60;background:#25D366;color:#fff;width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;box-shadow:0 8px 24px rgba(37,211,102,.4);text-align:center;line-height:1.1}
.wa-float:hover{transform:scale(1.05)}

/* 页脚 */
footer.foot{background:#1F1B18;color:#e9e2d6;padding:54px 0 30px}
footer.foot h3{color:#fff;font-size:17px;margin-bottom:12px}
footer.foot a{color:#cfc6b6}
footer.foot a:hover{color:#fff}
.foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
@media(max-width:760px){.foot .cols{grid-template-columns:1fr 1fr}}
.foot .infringe-foot{background:#000;margin-top:34px;padding:16px;border-radius:3px;color:#fff;font-weight:700;text-align:center;font-size:14px}
.foot .infringe-foot span{color:#ffd9de}
.foot .copy{margin-top:22px;font-size:12px;color:#9a9183;text-align:center}

/* 面包屑 / 页眉条 */
.pagehead{padding:56px 0 30px;background:var(--paper);border-bottom:1px solid var(--line)}
.pagehead h1{font-size:34px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:10px}
.crumbs a:hover{color:var(--bordeaux)}

/* 切换开关 */
.toggle{display:inline-flex;border:1px solid var(--line);border-radius:3px;overflow:hidden;margin:8px 0 4px}
.toggle button{border:none;background:var(--paper);padding:9px 18px;font:inherit;font-weight:700;cursor:pointer;color:var(--muted)}
.toggle button.on{background:var(--bordeaux);color:#fff}

/* 博客 */
.blog-grid{margin-top:24px}
.bcard{display:block;background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:18px;color:inherit;text-decoration:none;transition:.18s}
.bcard:hover{box-shadow:0 6px 22px rgba(0,0,0,.08);transform:translateY(-2px)}
.bcard .bthumb{height:96px;background:linear-gradient(135deg,var(--bordeaux),#7a2230);color:#fff;display:flex;align-items:center;justify-content:center;text-align:center;font-weight:700;border-radius:4px;padding:10px;margin-bottom:12px;font-size:15px}
.bcard h3{font-size:18px;margin:6px 0}
.bcard p{color:var(--muted);font-size:14px;margin:0}
.bcard .more{display:inline-block;margin-top:10px;color:var(--bordeaux);font-weight:700;font-size:14px}
.post{max-width:760px;line-height:1.9;font-size:16px}
.post h2{font-size:24px;margin:34px 0 12px;color:var(--bordeaux)}
.post p{margin:0 0 14px}