:root {
  --paper: #FBF8F3;
  --surface: #FFFFFF;
  --tint: #F4EEE4;
  --ink: #151B2E;
  --ink-2: #3A4258;
  --muted: #646B7D;
  --line: #E6DFD3;
  --primary: #012697;
  --primary-2: #001A70;
  --primary-soft: #E7ECF8;
  --kraft: #C99A66;
  --kraft-2: #B5854F;
  --kraft-soft: #F3E6D4;
  --dark: #0A1230;
  --brand-blue: #012697;
  --brand-red: #E50111;
  --brand-green: #029B44;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 1px 2px rgba(21, 27, 46, .04), 0 8px 24px rgba(21, 27, 46, .06);
  --shadow-lg: 0 2px 4px rgba(21, 27, 46, .04), 0 18px 48px rgba(21, 27, 46, .10);
  --gutter: 24px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.12; letter-spacing: -0.02em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: 860px; }
.icon { width: 20px; height: 20px; flex: none; }

/* 待确认内容高亮（仅 --highlight 草稿） */
.tbd { background: #FFE58A; color: inherit; border-radius: 3px; padding: 0 2px; box-shadow: 0 0 0 1px #F2C94C inset; cursor: help; }
.draft-bar { background: #EEF1F8; color: var(--muted); font-size: 13px; text-align: center; padding: 8px 16px; border-bottom: 1px solid var(--line); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 22px; border-radius: 999px; border: 1.5px solid transparent;
  font-weight: 700; font-size: 15px; white-space: nowrap; cursor: pointer;
  transition: background .2s, color .2s, border-color .2s, transform .2s, box-shadow .2s;
}
.btn .icon { width: 18px; height: 18px; transition: transform .2s; }
.btn:hover .icon:last-child { transform: translateX(3px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(1, 38, 151, .25); }
.btn-primary:hover { background: var(--primary-2); }
.btn-secondary { background: transparent; border-color: rgba(21, 27, 46, .2); color: var(--ink); }
.btn-secondary:hover { border-color: var(--ink); background: rgba(255, 255, 255, .6); }
.btn-accent { background: var(--kraft); color: var(--dark); }
.btn-accent:hover { background: #D7AB79; }
.btn-ghost-light { border-color: rgba(255, 255, 255, .35); color: #fff; }
.btn-ghost-light:hover { border-color: #fff; background: rgba(255, 255, 255, .08); }
.btn-link { height: auto; padding: 0; color: var(--primary); border: 0; }
.btn-link:hover { color: var(--primary-2); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 248, 243, .88);
  backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .2s, box-shadow .2s;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 4px 20px rgba(21, 27, 46, .05); }
.header-inner { display: flex; align-items: center; gap: 28px; height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; flex: none; }
.logo-mark { height: 36px; width: auto; }
.logo-text { display: flex; flex-direction: column; font-weight: 800; font-size: 19px; line-height: 1; letter-spacing: .01em; text-transform: uppercase; color: var(--brand-blue); }
.logo-text span { font-weight: 600; font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-top: 5px; }
.logo-light .logo-text { color: #fff; }
.logo-light .logo-text span { color: rgba(255, 255, 255, .55); }

.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item > a { display: flex; align-items: center; gap: 4px; white-space: nowrap; padding: 10px 14px; border-radius: 999px; font-weight: 600; font-size: 15px; color: var(--ink-2); transition: background .2s, color .2s; }
.nav-item > a:hover, .nav-item > a[aria-current="page"] { color: var(--ink); background: rgba(21, 27, 46, .05); }
.chev { width: 16px; height: 16px; transition: transform .2s; }
.has-dd { position: relative; }
.dropdown {
  position: absolute; top: calc(100% + 10px); left: 50%; transform: translate(-50%, 6px);
  width: 640px; padding: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transition: opacity .18s, transform .18s, visibility .18s;
}
.dropdown::before { content: ""; position: absolute; left: 0; right: 0; top: -12px; height: 12px; }
.has-dd:hover .dropdown, .has-dd:focus-within .dropdown { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.has-dd:hover .chev { transform: rotate(180deg); }
.dd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.dd-grid a { display: flex; gap: 12px; align-items: center; padding: 10px; border-radius: var(--radius-sm); transition: background .15s; }
.dd-grid a:hover { background: var(--tint); }
.dd-art { width: 64px; height: 48px; flex: none; background: var(--kraft-soft); border-radius: 10px; padding: 4px; }
.dd-art svg { width: 100%; height: 100%; }
.dd-grid strong { display: block; font-size: 14px; }
.dd-grid small { display: block; font-size: 12.5px; color: var(--muted); line-height: 1.4; margin-top: 2px; }
.dd-all { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; padding: 12px 14px; border-radius: var(--radius-sm); background: var(--tint); font-weight: 700; font-size: 14px; color: var(--primary); }
.dd-all .icon { width: 18px; height: 18px; }

.header-actions { display: flex; align-items: center; gap: 12px; }
.header-actions .btn { height: 44px; padding: 0 20px; }
.wa-link { display: flex; align-items: center; gap: 6px; font-weight: 600; font-size: 14px; color: var(--ink-2); padding: 8px; }
.wa-link span { display: none; }
.wa-link:hover { color: var(--primary); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); align-items: center; justify-content: center; cursor: pointer; }
.menu-toggle .i-close { display: none; }
.nav-mobile-cta { display: none; }

/* ---------- 通用区块 ---------- */
.section { padding: 104px 0; }
.section-tight { padding: 72px 0; }
.section-tint { background: var(--tint); }
.pt-0 { padding-top: 0; }
.section-dark { background: var(--dark); color: #fff; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--kraft-2); }
.section-dark .eyebrow { color: var(--kraft); }
.eyebrow.pill { display: inline-flex; padding: 7px 14px; border-radius: 999px; background: var(--kraft-soft); color: #8A6131; letter-spacing: .06em; text-transform: none; font-size: 13.5px; }
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; margin-top: 14px; }
.section-head .lead { margin-top: 18px; }
.lead { font-size: 18px; color: var(--muted); line-height: 1.65; }
.section-dark .lead { color: rgba(255, 255, 255, .65); }
.section-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 48px; }
.section-head-row .section-head { margin-bottom: 0; }
.center-link { display: flex; justify-content: center; margin-top: 40px; }
.split { display: grid; grid-template-columns: 1fr 1.15fr; gap: 64px; align-items: start; }
.split-wide { grid-template-columns: 1fr 1fr; align-items: center; }
.split > div > .btn { margin-top: 4px; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { padding: 9px 16px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-weight: 600; font-size: 14.5px; color: var(--ink-2); }
.section-tint .chip { background: var(--paper); }

/* ---------- 首页首屏 ---------- */
.hero { padding: 56px 0 40px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(40px, 5.6vw, 68px); font-weight: 800; letter-spacing: -0.035em; margin: 22px 0 22px; }
.hero .lead { font-size: 19px; max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 30px; }
.hero-points li { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14.5px; color: var(--ink-2); }
.hero-points .icon { color: var(--primary); width: 20px; height: 20px; }
.hero-art svg { width: 100%; height: auto; margin-right: -24px; }

.stats-wrap { padding: 0 0 24px; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.stat { padding: 28px 30px; display: flex; flex-direction: column; gap: 4px; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat-num { font-size: clamp(28px, 3vw, 40px); font-weight: 800; letter-spacing: -0.03em; color: var(--primary); line-height: 1.1; }
.stat-label { font-size: 14.5px; color: var(--muted); font-weight: 500; }
.stats-light { margin-top: 32px; }

/* ---------- 产品卡片 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.product-card { grid-column: span 2; display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform .25s, box-shadow .25s, border-color .25s; }
.product-grid .product-card:nth-child(4), .product-grid .product-card:nth-child(5) { grid-column: span 3; }
.product-grid:has(> :nth-child(3):last-child) .product-card { grid-column: span 2; }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.pc-art { background: linear-gradient(160deg, var(--kraft-soft), #EFE1CC); padding: 18px 24px 8px; display: flex; justify-content: center; }
.pc-art svg { width: 100%; max-width: 300px; height: auto; transition: transform .35s; }
.product-card:hover .pc-art svg { transform: scale(1.04) translateY(-4px); }
.pc-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.pc-body h3 { font-size: 21px; font-weight: 700; }
.pc-body p { color: var(--muted); margin-top: 8px; font-size: 15px; flex: 1; }
.pc-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 14px; font-weight: 600; color: var(--ink-2); }
.pc-link { display: flex; align-items: center; gap: 6px; color: var(--primary); }
.pc-link .icon { width: 16px; height: 16px; transition: transform .2s; }
.product-card:hover .pc-link .icon { transform: translateX(3px); }

/* ---------- 优势 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--paper); border-radius: var(--radius); padding: 30px; border: 1px solid var(--line); }
.feature-icon { width: 46px; height: 46px; padding: 11px; border-radius: 14px; background: var(--primary); color: #fff; margin-bottom: 22px; }
.feature h3 { font-size: 19px; font-weight: 700; }
.feature p { color: var(--muted); margin-top: 10px; font-size: 15.5px; }

.finish-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow); }
.finish-card h3 { font-size: 24px; font-weight: 800; margin: 10px 0 22px; }
.finish-card .btn-link { margin-top: 24px; }
.swatch-chips { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.swatch-chip { display: flex; align-items: center; gap: 12px; padding: 10px; border-radius: var(--radius-sm); background: var(--paper); font-weight: 600; font-size: 14.5px; }

/* 材料和工艺的色块 */
.sw { display: block; width: 36px; height: 36px; border-radius: 10px; flex: none; border: 1px solid rgba(21, 27, 46, .1); }
.sw-lg { width: 100%; height: 120px; border-radius: var(--radius-sm); margin-bottom: 18px; }
.fin-matte { background: #2F5A47; }
.fin-gloss { background: linear-gradient(125deg, #2B6449 0%, #3F8A68 38%, #E9F5EE 46%, #3F8A68 54%, #1E4D3A 100%); }
.fin-soft { background: radial-gradient(circle at 30% 30%, #4A4F4C, #2A2E2C); }
.fin-foil { background: linear-gradient(120deg, #9C7A3C, #F2D594 30%, #B8914A 50%, #FBE7B5 70%, #9C7A3C); }
.fin-emboss { background: #F2EDE5; box-shadow: inset 2px 2px 4px rgba(255, 255, 255, .9), inset -3px -3px 6px rgba(0, 0, 0, .12); }
.sw-lg.fin-emboss { background: radial-gradient(circle at 50% 50%, #F2EDE5 30%, transparent 31%), #F2EDE5; box-shadow: inset 4px 4px 10px rgba(255, 255, 255, .9), inset -6px -6px 14px rgba(0, 0, 0, .1); }
.fin-spot { background: radial-gradient(circle at 50% 50%, #1b1b1b 0 34%, transparent 35%), linear-gradient(135deg, #2a2a2a, #3a3a3a); position: relative; }
.sw-lg.fin-spot { background: linear-gradient(115deg, transparent 40%, rgba(255, 255, 255, .25) 48%, transparent 56%), radial-gradient(circle at 50% 50%, #0d0d0d 0 28%, transparent 29%), #3a3a3a; }
.fin-window { background: linear-gradient(#F6DED7, #F6DED7) padding-box; position: relative; overflow: hidden; }
.fin-window::after { content: ""; position: absolute; inset: 22%; border-radius: 4px; background: linear-gradient(135deg, rgba(176, 214, 226, .9), rgba(255, 255, 255, .7) 45%, rgba(176, 214, 226, .9)); }
.sw.fin-window { position: relative; }
.fin-varnish { background: linear-gradient(135deg, #E6C295, #F3DDBE 50%, #E6C295); }

.mat { display: block; width: 100%; height: 120px; border-radius: var(--radius-sm); margin-bottom: 18px; border: 1px solid rgba(21, 27, 46, .08); }
.mat-white { background: linear-gradient(135deg, #FFFFFF, #EFEBE4); }
.mat-kraft { background: repeating-linear-gradient(35deg, rgba(0, 0, 0, .03) 0 2px, transparent 2px 5px), #C99A66; }
.mat-corrugated { background: repeating-linear-gradient(90deg, #C99A66 0 6px, #B5854F 6px 7px, #D6AA76 7px 13px); }
.mat-grey { background: linear-gradient(180deg, #F7EBD9 0 22%, #9A968F 22% 78%, #F7EBD9 78%); }
.mat-specialty { background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, .6), transparent 40%), linear-gradient(135deg, #E9DCCB, #D7C3E0 50%, #CFE3E0); }

/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .1); border-radius: var(--radius); overflow: hidden; counter-reset: step; }
.step { background: var(--dark); padding: 32px; display: flex; flex-direction: column; }
.step-num { font-size: 15px; font-weight: 800; color: var(--kraft); letter-spacing: .06em; }
.step h3 { font-size: 21px; font-weight: 700; margin-top: 16px; }
.step p { color: rgba(255, 255, 255, .62); margin-top: 10px; font-size: 15.5px; flex: 1; }
.step-time { display: inline-flex; align-self: flex-start; margin-top: 20px; padding: 6px 12px; border-radius: 999px; background: rgba(201, 154, 102, .14); color: #E6C295; font-size: 13px; font-weight: 700; }
.step-time .tbd { color: var(--ink); }

/* ---------- 照片 ---------- */
.photo { margin: 0; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4 / 3; background: var(--tint); }
.photo img { width: 100%; height: 100%; object-fit: cover; }
.photo-slot {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; text-align: center; padding: 20px;
  border: 1.5px dashed #CDBFA8; color: #8A7A63;
  background: repeating-linear-gradient(-45deg, rgba(201, 154, 102, .06) 0 12px, transparent 12px 24px), #F7F0E5;
}
.photo-slot .icon { width: 32px; height: 32px; opacity: .7; }
.photo-slot span { font-weight: 700; font-size: 14.5px; color: #6E5F4A; }
.photo-slot small { font-size: 12.5px; color: #9A8A72; max-width: 260px; line-height: 1.45; }
.photo-trio { display: grid; grid-template-columns: 1.2fr 1fr; grid-template-rows: 1fr 1fr; gap: 16px; }
.photo-trio .photo:first-child { grid-row: span 2; aspect-ratio: auto; }
.photo-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.photo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.photo-grid .photo:nth-child(1), .photo-grid .photo:nth-child(6) { grid-column: span 2; grid-row: span 2; aspect-ratio: auto; }
.video-slot { aspect-ratio: 21 / 9; border-radius: var(--radius); }
.photo-grid.plain { grid-template-columns: repeat(var(--cols, 4), 1fr); }
.photo-grid.plain .photo { grid-column: auto; grid-row: auto; aspect-ratio: 4 / 3; }
.video-slot .icon { width: 56px; height: 56px; }
.section-tint .photo-slot { background: repeating-linear-gradient(-45deg, rgba(201, 154, 102, .07) 0 12px, transparent 12px 24px), var(--paper); }

/* ---------- 认证 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cert { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; text-align: center; display: flex; flex-direction: column; gap: 6px; }
.cert-name { font-size: 20px; font-weight: 800; color: var(--primary); }
.cert-desc { font-size: 14px; color: var(--muted); }
.quality-grid { grid-template-columns: repeat(5, 1fr); }
.quality-grid .cert { text-align: left; align-items: flex-start; }
.quality-grid .cert-name { font-size: 17px; }
.quality-grid .q-num { width: 30px; height: 30px; font-size: 14px; margin-bottom: 6px; }
.product-grid:has(> :nth-child(4):last-child) .product-card { grid-column: span 3; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); transition: border-color .2s, box-shadow .2s; }
.faq[open] { border-color: rgba(1, 38, 151, .3); box-shadow: var(--shadow); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px 22px; font-weight: 700; font-size: 16.5px; }
.faq summary::-webkit-details-marker { display: none; }
.faq-plus { position: relative; width: 28px; height: 28px; flex: none; border-radius: 999px; background: var(--tint); }
.faq-plus::before, .faq-plus::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 2px; background: var(--primary); border-radius: 2px; transform: translate(-50%, -50%); transition: transform .2s; }
.faq-plus::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq[open] .faq-plus::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-a { padding: 0 22px 22px; color: var(--muted); }
.faq-group + .faq-group { margin-top: 56px; }
.faq-group h2 { font-size: 26px; font-weight: 800; margin-bottom: 20px; }

/* ---------- 内页 ---------- */
.page-hero { padding: 72px 0 24px; }
.page-hero h1 { font-size: clamp(38px, 5vw, 60px); font-weight: 800; letter-spacing: -0.035em; margin: 16px 0 20px; max-width: 820px; }
.page-hero .lead { max-width: 680px; }

.product-hero { padding: 40px 0 24px; }
.product-hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.product-hero h1 { font-size: clamp(38px, 5vw, 58px); font-weight: 800; letter-spacing: -0.035em; margin: 18px 0 18px; }
.product-hero-art { background: linear-gradient(160deg, var(--kraft-soft), #EBDBC3); border-radius: 28px; padding: 32px; }
.product-hero-art svg { width: 100%; height: auto; }
.crumbs { display: flex; gap: 8px; font-size: 14px; color: var(--muted); font-weight: 500; }
.crumbs a:hover { color: var(--primary); }
.quick-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 28px; }
.quick-facts li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; display: flex; flex-direction: column; gap: 2px; }
.quick-facts span { font-size: 13px; color: var(--muted); }
.quick-facts strong { font-size: 17px; }

.style-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.style-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.section-tint .style-item { background: var(--paper); }
.style-item h3 { font-size: 18px; font-weight: 700; }
.style-item p { color: var(--muted); margin-top: 8px; font-size: 15px; }

.option-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.option-grid-4 { grid-template-columns: repeat(4, 1fr); }
.option-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 16px 22px; }
.option-card h3 { font-size: 17px; font-weight: 700; padding: 0 4px; }
.option-card p { color: var(--muted); font-size: 14.5px; margin-top: 6px; padding: 0 4px; }

.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); }
.data-table { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.data-table th, .data-table td { text-align: left; padding: 16px 22px; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table tr:last-child th, .data-table tr:last-child td { border-bottom: 0; }
.data-table thead th { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); background: var(--paper); }
.data-table tbody th { font-weight: 700; }
.data-table tbody th a { color: var(--primary); }
.spec-table tbody th { width: 34%; color: var(--ink-2); background: var(--paper); }
.good-for { margin-top: 8px; }
.good-for h3 { font-size: 15px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 14px; }

.info-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 8px; }
.info-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--ink-2); }
.info-list .icon { color: var(--primary); margin-top: 2px; }

.q-steps { display: flex; flex-direction: column; gap: 22px; }
.q-steps li { display: flex; gap: 18px; }
.q-num { width: 36px; height: 36px; flex: none; border-radius: 999px; background: var(--primary); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.q-steps h3 { font-size: 18px; font-weight: 700; }
.q-steps p { color: var(--muted); margin-top: 4px; }

.prose h2 { font-size: 22px; font-weight: 800; margin: 36px 0 10px; }
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--ink-2); font-size: 17px; }
.prose p + p { margin-top: 16px; }
.prose a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 询价表单 ---------- */
.quote-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 40px; align-items: start; }
.quote-form { background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 36px; box-shadow: var(--shadow); }
.quote-form fieldset { border: 0; padding: 0; margin: 0; }
.quote-form fieldset + fieldset { margin-top: 32px; padding-top: 32px; border-top: 1px solid var(--line); }
.quote-form legend { font-size: 20px; font-weight: 800; margin-bottom: 20px; padding: 0; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; font-size: 14px; font-weight: 600; color: var(--ink-2); }
.field.full { grid-column: 1 / -1; }
.field em { font-style: normal; color: var(--muted); font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%; border: 1.5px solid var(--line); border-radius: var(--radius-sm); background: var(--paper);
  padding: 12px 14px; font-size: 15.5px; font-weight: 500; transition: border-color .2s, background .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px rgba(1, 38, 151, .1); }
.field textarea { resize: vertical; }
.size-row { display: flex; gap: 10px; }
.size-row select { width: 110px; flex: none; }
.checks { display: flex; flex-wrap: wrap; gap: 10px; }
.check { display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; border: 1.5px solid var(--line); border-radius: 999px; cursor: pointer; font-weight: 600; font-size: 14px; background: var(--paper); transition: border-color .2s, background .2s; }
.check:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.check input { accent-color: var(--primary); margin: 0; }
.form-note { font-weight: 500; color: var(--muted); background: var(--paper); border-radius: var(--radius-sm); padding: 14px 16px; }
.form-foot { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-top: 32px; }
.form-privacy { font-size: 13.5px; color: var(--muted); flex: 1; min-width: 200px; }
.form-privacy a { color: var(--primary); text-decoration: underline; }
.form-status:not(:empty) { margin-top: 20px; padding: 14px 16px; border-radius: var(--radius-sm); background: var(--primary-soft); color: var(--primary-2); font-weight: 600; }
.form-status.error { background: #FBE6E2; color: #8C2B1A; }
.quote-side { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 100px; }
.side-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.side-card h2 { font-size: 20px; font-weight: 800; margin-bottom: 16px; }
.contact-row { display: flex; gap: 14px; align-items: flex-start; padding: 12px 0; border-top: 1px solid var(--line); font-size: 15px; }
.contact-row:first-of-type { border-top: 0; padding-top: 0; }
.contact-row .icon { color: var(--primary); margin-top: 2px; }
.contact-row strong { display: block; font-size: 13px; color: var(--muted); font-weight: 600; }
a.contact-row:hover span { color: var(--primary); }
.next-steps { counter-reset: n; display: flex; flex-direction: column; gap: 14px; }
.next-steps li { counter-increment: n; display: flex; gap: 12px; color: var(--ink-2); font-size: 15px; }
.next-steps li::before { content: counter(n); width: 26px; height: 26px; flex: none; border-radius: 999px; background: var(--kraft-soft); color: #8A6131; font-weight: 800; font-size: 13px; display: flex; align-items: center; justify-content: center; }

/* ---------- 底部 ---------- */
.cta-band { background: var(--primary); color: #fff; padding: 80px 0; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(230, 194, 149, .22), transparent 70%); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; position: relative; z-index: 1; }
.cta-band h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 800; }
.cta-band p { color: rgba(255, 255, 255, .72); margin-top: 14px; font-size: 17px; max-width: 560px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; flex: none; }

.site-footer { background: var(--dark); color: rgba(255, 255, 255, .7); padding: 72px 0 0; font-size: 15px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr; gap: 40px; }
.footer-brand p { margin-top: 18px; max-width: 320px; }
.site-footer h3 { color: #fff; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 18px; }
.site-footer ul { display: flex; flex-direction: column; gap: 10px; }
.site-footer a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer-contact .icon { color: var(--kraft); margin-top: 2px; width: 18px; height: 18px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 56px; padding: 24px var(--gutter); border-top: 1px solid rgba(255, 255, 255, .1); font-size: 13.5px; color: rgba(255, 255, 255, .5); }
.site-footer .tbd { color: var(--ink); }

.wa-float { position: fixed; right: 20px; bottom: 20px; z-index: 40; width: 56px; height: 56px; border-radius: 999px; background: #25D366; color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(37, 211, 102, .4); transition: transform .2s; }
.wa-float:hover { transform: scale(1.06); }
.wa-float .icon { width: 28px; height: 28px; }

/* ---------- 语言切换和中文排版 ---------- */
.lang-switch { display: flex; align-items: center; gap: 6px; white-space: nowrap; flex: none; padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line); font-weight: 700; font-size: 14px; color: var(--ink-2); background: var(--surface); transition: border-color .2s, color .2s; }
.lang-switch:hover { border-color: var(--primary); color: var(--primary); }
.lang-switch .icon { width: 17px; height: 17px; }
.lang-zh h1, .lang-zh h2, .lang-zh h3 { letter-spacing: 0; line-height: 1.28; }
.lang-zh .hero h1 { font-size: clamp(36px, 4.8vw, 58px); letter-spacing: .01em; }
.lang-zh .page-hero h1, .lang-zh .product-hero h1 { font-size: clamp(34px, 4.4vw, 52px); }
.lang-zh .eyebrow { letter-spacing: .1em; }
.lang-zh .logo-text { text-transform: none; letter-spacing: .08em; font-size: 20px; }
.lang-zh .logo-text span { letter-spacing: .06em; font-size: 9px; }
.lang-zh .lead, .lang-zh p { line-height: 1.8; }
.lang-zh .btn { letter-spacing: .02em; }
@media (max-width: 640px) { .lang-switch span { display: none; } .lang-switch { padding: 10px; } }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .header-inner { gap: 16px; }
  .nav-item > a { padding: 10px 10px; font-size: 14.5px; }
  .wa-link span { display: none; }
  .option-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 960px) {
  .menu-toggle { display: flex; }
  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0; height: calc(100vh - 76px); height: calc(100dvh - 76px); z-index: 49; margin: 0; background: var(--paper); border-top: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0; padding: 12px var(--gutter) 32px; overflow-y: auto;
    opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .2s, transform .2s, visibility .2s;
  }
  .nav-open .main-nav { opacity: 1; visibility: visible; transform: none; }
  .nav-open { overflow: hidden; }
  .nav-open .menu-toggle .i-open { display: none; }
  .nav-open .menu-toggle .i-close { display: block; }
  .nav-item > a { padding: 16px 4px; font-size: 18px; border-radius: 0; border-bottom: 1px solid var(--line); justify-content: space-between; }
  .nav-item > a:hover { background: none; }
  .chev { display: none; }
  .dropdown { position: static; width: auto; transform: none; opacity: 1; visibility: visible; box-shadow: none; border: 0; padding: 4px 0 8px; background: none; }
  .has-dd:hover .dropdown { transform: none; }
  .dd-grid { grid-template-columns: 1fr; }
  .dd-grid small, .dd-all { display: none; }
  .nav-mobile-cta { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
  .nav-wa { display: flex; align-items: center; justify-content: center; gap: 8px; height: 48px; border-radius: 999px; border: 1.5px solid var(--line); font-weight: 700; }
  .header-actions .btn { display: none; }
  .header-actions { margin-left: auto; }

  .section { padding: 80px 0; }
  .section-tight { padding: 56px 0; }
  .hero-grid, .split, .split-wide, .product-hero-grid, .quote-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-art { max-width: 560px; margin: 0 auto; }
  .hero-art svg { margin: 0; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid .product-card, .product-grid .product-card:nth-child(4), .product-grid .product-card:nth-child(5), .product-grid:has(> :nth-child(3):last-child) .product-card { grid-column: span 1; }
  .feature-grid, .style-grid, .steps { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .quality-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid:has(> :nth-child(4):last-child) .product-card { grid-column: span 1; }
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .photo-grid.plain { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .section-head-row { flex-direction: column; align-items: flex-start; }
  .quote-side { position: static; }
}

@media (max-width: 640px) {
  :root { --gutter: 16px; }
  .header-inner { height: 64px; }
  .main-nav { height: calc(100vh - 64px); height: calc(100dvh - 64px); }
  .eyebrow.pill { font-size: 12.5px; padding: 6px 12px; letter-spacing: .02em; }
  .wa-link { display: none; }
  .hero { padding-top: 32px; }
  .hero .lead, .lead { font-size: 17px; }
  .hero-actions .btn { flex: 1; }
  .section { padding: 64px 0; }
  .section-tight { padding: 48px 0; }
  .section-head { margin-bottom: 32px; }
  .stat { padding: 20px; }
  .product-grid, .feature-grid, .style-grid, .steps, .photo-row, .option-grid, .option-grid-4, .cert-grid, .quality-grid { grid-template-columns: 1fr; }
  .photo-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .photo-slot small { display: none; }
  .photo-trio { grid-template-columns: 1fr 1fr; }
  .photo-trio .photo:first-child { grid-column: span 2; grid-row: auto; aspect-ratio: 4 / 3; }
  .swatch-chips { grid-template-columns: 1fr; }
  .quick-facts { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .quick-facts li { padding: 10px 12px; }
  .quick-facts strong { font-size: 15px; }
  .fields { grid-template-columns: 1fr; }
  .quote-form { padding: 24px 18px; border-radius: var(--radius); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .video-slot { aspect-ratio: 16 / 9; }
  .data-table th, .data-table td { padding: 14px 16px; }
  .cta-actions .btn { flex: 1; }
  .cta-actions { width: 100%; }
}