/* ============================================================
   HSBAGG · EVA 包袋官网样式
   ============================================================ */
:root {
  --bg: #F5F2EC;
  --bg-tint: #EDE8DF;
  --card: #FFFFFF;
  --ink: #22201C;
  --ink-2: #5C574E;
  --ink-3: #948E83;
  --line: #E2DCD1;
  --accent: #5F7357;
  --accent-deep: #49573F;
  --coral: #E4795C;
  --radius: 20px;
  --shadow-sm: 0 2px 10px rgba(50, 44, 34, .06);
  --shadow-md: 0 10px 30px rgba(50, 44, 34, .10);
  --shadow-lg: 0 24px 60px rgba(50, 44, 34, .14);
  --header-h: 64px;
  --seriesbar-h: 52px;
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", -apple-system, sans-serif;
  --font-en: "Avenir Next", "Futura", "Segoe UI", var(--font);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + var(--seriesbar-h) + 16px); }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
.container { width: min(1200px, 92%); margin: 0 auto; }

/* ---------- 通用组件 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 24px; border-radius: 999px; border: 1.5px solid transparent;
  font-size: 15px; font-weight: 600; transition: all .22s ease; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-deep); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-outline:hover { background: var(--ink); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink-2); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }
.btn-mini { padding: 6px 14px; font-size: 13px; border-radius: 999px; background: var(--bg-tint); border: none; color: var(--ink-2); }
.btn-mini:hover { background: var(--ink); color: #fff; }
.btn-block { width: 100%; }
.link-btn { background: none; border: none; color: var(--ink-3); font-size: 13px; }
.link-btn:hover { color: var(--coral); }

.section { padding: 96px 0; }
.section-tint { background: var(--bg-tint); }
.section-kicker {
  font-family: var(--font-en); letter-spacing: .35em; font-size: 12px;
  color: var(--coral); font-weight: 700; text-transform: uppercase; margin-bottom: 12px;
}
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(30px, 4vw, 44px); line-height: 1.25; letter-spacing: .02em; }
.section-desc { color: var(--ink-2); margin-top: 14px; font-size: 16px; }

.img-frame {
  overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow-md);
  background: var(--bg-tint);
}
.img-frame img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.12); /* 轻微放大裁掉图片右下角水印 */
  transition: transform .6s ease;
}
.img-frame:hover img { transform: scale(1.16); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245, 242, 236, .88); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 32px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 52px; height: 52px; object-fit: contain; flex: 0 0 auto; }
.brand-text { font-weight: 800; font-size: 20px; letter-spacing: .06em; display: flex; flex-direction: column; line-height: 1.1; }
.brand-text i { font-style: normal; font-size: 10px; font-weight: 600; color: var(--ink-3); letter-spacing: .22em; }
.main-nav { display: flex; gap: 28px; margin-left: auto; }
.main-nav a { font-size: 15px; font-weight: 500; color: var(--ink-2); position: relative; padding: 6px 0; }
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--accent); border-radius: 2px; transition: width .25s;
}
.main-nav a:hover { color: var(--ink); }
.main-nav a:hover::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 20px; padding: 0 5px; border-radius: 999px;
  background: var(--coral); color: #fff; font-size: 12px; font-weight: 700;
}
.nav-toggle { display: none; background: none; border: none; flex-direction: column; gap: 5px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; }

/* ---------- 系列导航条（预留空间） ---------- */
.series-bar { border-top: 1px solid var(--line); background: rgba(255,255,255,.55); }
.series-bar-inner { display: flex; align-items: center; gap: 16px; height: var(--seriesbar-h); }
.series-bar-label {
  font-size: 12px; color: var(--ink-3); letter-spacing: .2em; flex-shrink: 0;
  padding-right: 16px; border-right: 1px solid var(--line);
}
.series-chips { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; padding: 8px 2px; }
.series-chips::-webkit-scrollbar { display: none; }
.chip {
  flex-shrink: 0; padding: 6px 18px; border-radius: 999px; font-size: 14px;
  border: 1px solid var(--line); background: #fff; color: var(--ink-2);
  transition: all .2s ease; cursor: pointer;
}
.chip:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.chip-cta { border-color: var(--coral); color: var(--coral); font-weight: 700; flex-shrink: 0; }
.chip-cta:hover { background: var(--coral); color: #fff; border-color: var(--coral); }

/* ---------- 首屏（整幅底图铺满） ---------- */
.hero {
  position: relative; padding: 110px 0 120px; overflow: hidden;
  background: var(--bg);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  /* 高度撑满、右锚定：任何屏宽下产品都完整显示在右侧，不裁切 */
  background: url("../assets/img/hero-hs01.jpg") right center / auto 100% no-repeat;
  background-color: #efe9e1;
}
/* 左侧渐变遮罩：衔接底色 + 保证文案可读性 */
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg,
    #f7f4ee 0%,
    rgba(247,244,238,.96) 26%,
    rgba(247,244,238,.55) 44%,
    rgba(247,244,238,0) 62%);
}
.hero-grid { position: relative; z-index: 1; display: block; max-width: 1200px; }
.hero-kicker {
  font-family: var(--font-en); letter-spacing: .3em; font-size: 13px;
  color: var(--accent); font-weight: 700; margin-bottom: 20px;
}
.hero h1 { font-size: clamp(44px, 6.4vw, 76px); line-height: 1.15; letter-spacing: .02em; }
.hero-sub { margin-top: 24px; color: var(--ink-2); font-size: 17px; max-width: 480px; }
.hero-cta { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 40px; list-style: none; margin-top: 48px;
  padding-top: 28px; border-top: 1px solid var(--line); max-width: 560px;
  backdrop-filter: blur(2px);
}
.hero-stats strong { display: block; font-size: 26px; font-family: var(--font-en); }
.hero-stats span { font-size: 13px; color: var(--ink-3); }
@media (max-width: 900px) {
  .hero-bg::after {
    background: linear-gradient(180deg,
      rgba(247,244,238,.92) 0%,
      rgba(247,244,238,.74) 45%,
      rgba(247,244,238,.28) 100%);
  }
}

/* ---------- 系列区块 ---------- */
.series-block { margin-bottom: 88px; }
.series-head {
  display: flex; align-items: flex-end; gap: 28px; flex-wrap: wrap;
  padding-bottom: 24px; margin-bottom: 32px; border-bottom: 1px solid var(--line);
}
.series-index {
  font-family: var(--font-en); font-size: 44px; font-weight: 800;
  color: transparent; -webkit-text-stroke: 1.5px var(--ink-3); line-height: 1;
}
.series-head h3 { font-size: 26px; letter-spacing: .02em; }
.series-head h3 em {
  font-style: normal; font-family: var(--font-en); font-size: 13px;
  color: var(--ink-3); letter-spacing: .25em; margin-left: 12px;
}
.series-head p { color: var(--ink-2); margin-top: 6px; max-width: 560px; font-size: 15px; }
.series-head > div:nth-child(2) { flex: 1; }
.series-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.series-tags span {
  font-size: 12px; padding: 5px 12px; border-radius: 999px;
  background: var(--bg-tint); color: var(--ink-2);
}

.product-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px;
}
.product-card {
  background: var(--card); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-sm); border: 1px solid var(--line);
  transition: transform .28s ease, box-shadow .28s ease;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-thumb {
  aspect-ratio: 1; background: linear-gradient(160deg, #FBF9F5, #EFEAE1);
  display: flex; align-items: center; justify-content: center; padding: 12%;
}
.product-thumb svg { width: 100%; height: 100%; }
.product-thumb img {
  width: 100%; height: 100%; object-fit: contain;
  transition: transform .35s ease;
}
.product-card:hover .product-thumb img { transform: scale(1.04); }
.product-info { padding: 18px 18px 20px; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.product-code { font-family: var(--font-en); font-size: 11px; letter-spacing: .2em; color: var(--ink-3); }
.product-info h4 { font-size: 17px; }
.product-specs { font-size: 13px; color: var(--ink-2); }
.product-dots { display: flex; gap: 5px; margin: 4px 0 8px; }
.product-dots i { width: 14px; height: 14px; border-radius: 50%; border: 2px solid #fff; box-shadow: 0 0 0 1px var(--line); }
.product-card .btn { margin-top: auto; }

/* ---------- 材质 ---------- */
.material-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: center; }
.material-visual .img-frame { aspect-ratio: 4/3; }
.material-caption { font-size: 13px; color: var(--ink-3); margin-top: 14px; text-align: center; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 32px; }
.feature-card {
  background: var(--card); border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--line);
  transition: transform .25s ease;
}
.feature-card:hover { transform: translateY(-4px); }
.feature-icon { font-size: 26px; margin-bottom: 10px; }
.feature-card h4 { font-size: 16px; margin-bottom: 6px; }
.feature-card p { font-size: 13.5px; color: var(--ink-2); }

/* ---------- 配色定制工坊 ---------- */
.studio-layout {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start;
}
.studio-preview {
  background: var(--card); border-radius: 24px; padding: 24px;
  box-shadow: var(--shadow-md); border: 1px solid var(--line);
  position: sticky; top: calc(var(--header-h) + var(--seriesbar-h) + 20px);
}
.preview-stage {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 18px; padding: 28px; display: flex; align-items: center; justify-content: center;
  min-height: 380px;
}
#bagPreview { width: min(340px, 100%); filter: drop-shadow(0 24px 24px rgba(60,52,40,.18)); }
#bagPreview svg { width: 100%; height: auto; display: block; }
.preview-info { margin-top: 20px; }
.preview-name-row { display: flex; align-items: center; justify-content: space-between; }
.preview-info h4 { font-size: 19px; }
.scheme-hexes { display: flex; gap: 8px; margin: 12px 0 14px; flex-wrap: wrap; }
.scheme-hexes .hex-tag {
  display: inline-flex; align-items: center; gap: 7px; font-size: 12px;
  font-family: var(--font-en); background: var(--bg); padding: 5px 12px 5px 6px;
  border-radius: 999px; border: 1px solid var(--line); color: var(--ink-2);
}
.scheme-hexes .hex-tag i { width: 18px; height: 18px; border-radius: 50%; display: inline-block; }
.preview-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.preview-actions .btn { padding: 10px 18px; font-size: 14px; }

.saved-schemes { margin-top: 20px; border-top: 1px dashed var(--line); padding-top: 16px; }
.saved-head { display: flex; justify-content: space-between; align-items: center; font-size: 14px; font-weight: 700; margin-bottom: 10px; }
.saved-list { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; min-height: 40px; }
.empty-tip { font-size: 13px; color: var(--ink-3); }
.saved-item {
  display: flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 12px;
  background: var(--bg); border: 1px solid var(--line); cursor: pointer; transition: border-color .2s;
}
.saved-item:hover { border-color: var(--accent); }
.saved-item i { width: 16px; height: 16px; border-radius: 5px; }
.saved-item .del { color: var(--ink-3); font-size: 12px; padding: 2px; }
.saved-item .del:hover { color: var(--coral); }

.studio-panel {
  background: var(--card); border-radius: 24px; padding: 28px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 26px;
}
.panel-group h5 { font-size: 15px; margin-bottom: 14px; color: var(--ink); letter-spacing: .04em; }

.shape-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.shape-tab {
  border: 1.5px solid var(--line); background: var(--bg); border-radius: 14px;
  padding: 10px 4px 8px; text-align: center; font-size: 12.5px; color: var(--ink-2);
  transition: all .2s ease;
}
.shape-tab svg { width: 100%; height: 52px; display: block; margin-bottom: 4px; }
.shape-tab:hover { border-color: var(--accent); }
.shape-tab.active { border-color: var(--accent); background: #EDF1EA; color: var(--accent-deep); font-weight: 700; }

.zone-select { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.zone-tab {
  padding: 8px 16px; border-radius: 999px; border: 1.5px solid var(--line);
  background: #fff; font-size: 13.5px; color: var(--ink-2); display: inline-flex; align-items: center; gap: 8px;
  transition: all .2s;
}
.zone-tab i { width: 14px; height: 14px; border-radius: 50%; border: 1px solid rgba(0,0,0,.12); }
.zone-tab.active { border-color: var(--ink); color: var(--ink); font-weight: 700; }

.swatch-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 10px; }
.swatch {
  aspect-ratio: 1; border-radius: 50%; border: 2px solid #fff; cursor: pointer;
  box-shadow: 0 0 0 1.5px var(--line), inset 0 -6px 10px rgba(0,0,0,.08);
  transition: transform .18s ease, box-shadow .18s ease; position: relative;
}
.swatch:hover { transform: scale(1.12); }
.swatch.selected { box-shadow: 0 0 0 2.5px var(--accent); transform: scale(1.08); }
.swatch.selected::after {
  content: "✓"; position: absolute; inset: 0; display: flex; align-items: center;
  justify-content: center; color: #fff; font-size: 13px; font-weight: 800;
  text-shadow: 0 1px 3px rgba(0,0,0,.4);
}

.custom-color { display: flex; align-items: center; gap: 12px; margin-top: 14px; font-size: 13.5px; color: var(--ink-2); }
.custom-color input[type="color"] {
  width: 42px; height: 32px; border: 1px solid var(--line); border-radius: 8px;
  padding: 2px; background: #fff; cursor: pointer;
}
#customHex { font-family: var(--font-en); }

.preset-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.preset-card {
  border: 1.5px solid var(--line); border-radius: 14px; padding: 14px;
  background: var(--bg); text-align: left; transition: all .2s;
}
.preset-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.preset-strips { display: flex; height: 22px; border-radius: 8px; overflow: hidden; margin-bottom: 8px; }
.preset-strips i { flex: 1; }
.preset-card b { font-size: 13.5px; font-weight: 700; color: var(--ink); }
.preset-card em { display: block; font-style: normal; font-size: 11.5px; color: var(--ink-3); }

/* ---------- 步骤 ---------- */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step-card {
  background: var(--card); border-radius: var(--radius); padding: 28px 24px;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm); position: relative;
}
.step-no {
  font-family: var(--font-en); font-size: 15px; font-weight: 800; color: #fff;
  background: var(--accent); width: 34px; height: 34px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center; margin-bottom: 14px;
}
.step-card h4 { font-size: 17px; margin-bottom: 8px; }
.step-card p { font-size: 13.5px; color: var(--ink-2); }

/* ---------- 专利认证 ---------- */
.patent-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.patent-card {
  background: var(--card); border-radius: var(--radius); border: 1px solid var(--line);
  box-shadow: var(--shadow-sm); overflow: hidden; cursor: zoom-in; position: relative;
  transition: transform .25s ease, box-shadow .25s ease;
}
.patent-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.patent-card-media { position: relative; background: var(--bg-tint); overflow: hidden; }
.patent-card-media img {
  width: 100%; aspect-ratio: 1061 / 1500; object-fit: cover; display: block;
  transition: transform .35s ease;
}
.patent-card:hover .patent-card-media img { transform: scale(1.045); }
.patent-card-tag {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  background: rgba(34, 32, 28, .82); color: #fff; font-size: 11.5px;
  letter-spacing: .08em; padding: 4px 11px; border-radius: 999px;
  backdrop-filter: blur(4px);
}
.patent-card-body { padding: 14px 16px 16px; }
.patent-card-body h4 { font-size: 15px; margin-bottom: 5px; }
.patent-card-no {
  font-family: var(--font-en); font-size: 12.5px; color: var(--ink-2); letter-spacing: .02em;
}
.patent-card-view {
  margin-top: 9px; font-size: 12px; font-weight: 700; color: var(--accent);
  display: inline-flex; align-items: center; gap: 5px;
}
.patent-card-view::after { content: "↗"; font-size: 12px; }

/* 证书放大查看 */
.patent-lightbox { position: fixed; inset: 0; z-index: 300; padding: 4vh 4vw; }
.patent-lightbox[hidden] { display: none; }
.patent-lightbox-mask {
  position: absolute; inset: 0; background: rgba(24, 21, 16, .8);
  backdrop-filter: blur(3px); animation: plbFade .25s ease;
}
@keyframes plbFade { from { opacity: 0; } to { opacity: 1; } }
.patent-lightbox-body {
  position: relative; height: 100%; display: flex; align-items: center;
  justify-content: center;
}
.patent-lightbox-body img {
  max-height: 94vh; max-width: 100%; width: auto; border-radius: 10px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .5);
  animation: plbRise .38s cubic-bezier(.2, .7, .3, 1);
}
@keyframes plbRise {
  from { opacity: 0; transform: translateY(20px) scale(.95); }
  to { opacity: 1; transform: none; }
}
.patent-lightbox-close {
  position: absolute; top: -46px; right: 0; width: 38px; height: 38px;
  border-radius: 50%; border: none; background: rgba(255, 255, 255, .16);
  color: #fff; font-size: 22px; line-height: 1; transition: background .2s ease;
}
.patent-lightbox-close:hover { background: rgba(255, 255, 255, .34); }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: start; }
.contact-list { list-style: none; margin-top: 28px; display: flex; flex-direction: column; gap: 12px; color: var(--ink-2); font-size: 15px; }
.contact-list strong { color: var(--ink); margin-right: 12px; font-weight: 700; }
.contact-form {
  background: var(--card); border-radius: 24px; padding: 32px;
  box-shadow: var(--shadow-md); border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 18px;
}
.contact-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form label { display: flex; flex-direction: column; gap: 8px; font-size: 14px; font-weight: 600; }
.contact-form input, .contact-form textarea {
  font-family: inherit; font-size: 14.5px; padding: 12px 16px;
  border: 1.5px solid var(--line); border-radius: 12px; background: var(--bg);
  color: var(--ink); transition: border-color .2s; resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--accent); }
.form-tip { font-size: 13px; color: var(--accent); min-height: 18px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #26241F; color: #B7B1A6; padding: 48px 0; margin-top: 40px; }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: center; }
.site-footer strong { color: #fff; font-size: 18px; letter-spacing: .08em; }
.footer-note { font-size: 13px; }

/* ---------- 询价抽屉 ---------- */
.drawer-mask {
  position: fixed; inset: 0; background: rgba(30,26,20,.4); z-index: 200;
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
.drawer-mask.show { opacity: 1; pointer-events: auto; }
.inquiry-drawer {
  position: fixed; top: 0; right: -420px; width: min(400px, 92vw); height: 100vh;
  background: var(--bg); z-index: 201; transition: right .35s cubic-bezier(.22,.8,.3,1);
  display: flex; flex-direction: column; box-shadow: var(--shadow-lg);
}
.inquiry-drawer.show { right: 0; }
.drawer-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px; border-bottom: 1px solid var(--line);
}
.icon-btn { background: none; border: none; font-size: 18px; color: var(--ink-2); }
.drawer-body { flex: 1; overflow-y: auto; padding: 20px 24px; display: flex; flex-direction: column; gap: 14px; }
.inquiry-item {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 14px;
  display: flex; gap: 12px; align-items: center;
}
.inquiry-item .mini-bag { width: 72px; flex-shrink: 0; }
.inquiry-item h5 { font-size: 14.5px; }
.inquiry-item .dots { display: flex; gap: 4px; margin-top: 6px; }
.inquiry-item .dots i { width: 13px; height: 13px; border-radius: 50%; border: 1.5px solid #fff; box-shadow: 0 0 0 1px var(--line); }
.inquiry-item .rm { margin-left: auto; background: none; border: none; color: var(--ink-3); font-size: 15px; }
.inquiry-item .rm:hover { color: var(--coral); }
.drawer-empty { text-align: center; color: var(--ink-3); font-size: 14px; padding: 48px 0; }
.drawer-foot { padding: 18px 24px; border-top: 1px solid var(--line); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 24px);
  background: var(--ink); color: #fff; padding: 12px 26px; border-radius: 999px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: all .3s ease; z-index: 300;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .product-grid, .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .patent-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-grid, .material-grid, .studio-layout, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .studio-preview { position: static; }
  .swatch-grid { grid-template-columns: repeat(8, 1fr); }
}
@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .patent-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .patent-lightbox-body { flex-direction: column; justify-content: center; }
  .patent-lightbox-body img { max-height: 70vh; }
  .main-nav {
    position: fixed; inset: calc(var(--header-h) + var(--seriesbar-h)) 0 auto 0;
    background: var(--bg); flex-direction: column; padding: 24px 6%;
    border-bottom: 1px solid var(--line); display: none; box-shadow: var(--shadow-lg);
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .hero { padding: 56px 0 72px; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .product-grid, .steps-grid, .preset-list { grid-template-columns: 1fr; }
  .shape-tabs { grid-template-columns: repeat(3, 1fr); }
  .swatch-grid { grid-template-columns: repeat(6, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .chip-a { left: 8px; } .chip-b { right: 8px; }
  .contact-form .form-row { grid-template-columns: 1fr; }
}

/* ============================================================
   产品详情页
   ============================================================ */
.detail-page .site-header .series-bar { display: none; }
.detail-page main { padding-top: calc(var(--header-h) + 8px); }
.crumb-bar { border-bottom: 1px solid var(--line); background: var(--card); }
.crumb-bar .container { display: flex; gap: 10px; align-items: center; padding: 14px 0; font-size: 13.5px; color: var(--ink-3); }
.crumb-bar a { color: var(--ink-2); text-decoration: none; }
.crumb-bar a:hover { color: var(--accent-deep); }
.crumb-bar b { color: var(--ink); font-weight: 600; }

.detail-hero { padding: 56px 0 72px; }
.detail-layout { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: start; }

.detail-stage {
  background: #fff; border: 1px solid var(--line); border-radius: 24px;
  overflow: hidden; aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
}
.detail-stage img { width: 100%; height: 100%; object-fit: contain; }
.detail-thumbs { display: grid; grid-template-columns: repeat(10, 1fr); gap: 8px; margin-top: 14px; }
.detail-thumbs .thumb {
  border: 2px solid transparent; border-radius: 10px; overflow: hidden;
  background: #fff; padding: 0; cursor: pointer; transition: border-color .2s;
}
.detail-thumbs .thumb.active { border-color: var(--accent); }
.detail-thumbs .thumb img { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; }

.detail-info h1 { font-size: clamp(28px, 3.4vw, 40px); margin: 8px 0 18px; }
.detail-desc { color: var(--ink-2); line-height: 1.9; font-size: 15.5px; }
.detail-specs {
  list-style: none; margin: 26px 0; padding: 18px 22px;
  background: var(--card); border-radius: 16px; border: 1px solid var(--line);
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px;
}
.detail-specs li { display: flex; gap: 10px; align-items: baseline; font-size: 14px; }
.detail-specs span { color: var(--ink-3); flex: 0 0 3.2em; }
.detail-specs b { font-weight: 600; }

.detail-color-block { margin-bottom: 26px; }
.detail-color-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 12px; }
.detail-color-head h5 { font-size: 15px; }
.detail-color-head span { font-size: 14px; color: var(--accent-deep); font-weight: 700; }
.detail-swatches { display: flex; gap: 10px; flex-wrap: wrap; }
.detail-hex { margin-top: 10px; font-size: 12.5px; color: var(--ink-3); font-family: var(--font-en); letter-spacing: .08em; }

.detail-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.detail-note { margin-top: 14px; font-size: 12.5px; color: var(--ink-3); }

.detail-features { background: var(--card); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 8px; }
.feature-card {
  background: var(--bg); border: 1px solid var(--line); border-radius: 18px;
  padding: 26px 22px; transition: transform .25s ease, box-shadow .25s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-ico { font-size: 26px; }
.feature-card h4 { margin: 10px 0 6px; font-size: 16.5px; }
.feature-card p { font-size: 13.5px; color: var(--ink-2); line-height: 1.8; }

.colorway-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.colorway-card {
  position: relative; background: #fff; border: 2px solid var(--line);
  border-radius: 16px; overflow: hidden; padding: 0; cursor: pointer;
  text-align: center; transition: border-color .2s, transform .2s;
}
.colorway-card:hover { transform: translateY(-4px); }
.colorway-card.active { border-color: var(--accent); box-shadow: var(--shadow-md); }
.colorway-card img { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; }
.colorway-card .cw-dot {
  position: absolute; top: 10px; right: 10px; width: 18px; height: 18px;
  border-radius: 50%; border: 2px solid #fff; box-shadow: 0 1px 4px rgba(0,0,0,.2);
}
.colorway-card b { display: block; margin-top: 10px; font-size: 14.5px; }
.colorway-card em { display: block; margin: 3px 0 12px; font-size: 11px; font-style: normal; color: var(--ink-3); font-family: var(--font-en); letter-spacing: .08em; }

.site-footer { border-top: 1px solid var(--line); padding: 28px 0; background: var(--card); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--ink-3); }
.footer-inner a { color: var(--ink-2); text-decoration: none; }
.footer-inner a:hover { color: var(--accent-deep); }

@media (max-width: 900px) {
  .detail-layout { grid-template-columns: 1fr; gap: 36px; }
  .detail-specs { grid-template-columns: 1fr; }
  .colorway-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .detail-thumbs { grid-template-columns: repeat(5, 1fr); }
}

/* ---------- 尺寸选择（产品卡 / 详情页通用） ---------- */
.size-picker { display: flex; gap: 8px; margin: 2px 0 6px; }
.size-chip {
  display: flex; flex-direction: column; align-items: center; gap: 1px;
  min-width: 58px; padding: 7px 12px;
  border: 1.5px solid var(--line); border-radius: 12px; background: var(--card);
  font-family: inherit; font-weight: 700; font-size: 14px; color: var(--ink-2);
  transition: border-color .2s, background .2s, color .2s, transform .15s;
}
.size-chip em { font-style: normal; font-size: 10.5px; font-weight: 500; color: var(--ink-3); letter-spacing: .04em; }
.size-chip:hover { border-color: var(--accent); transform: translateY(-1px); }
.size-chip.selected { border-color: var(--accent); background: var(--accent); color: #fff; }
.size-chip.selected em { color: rgba(255,255,255,.85); }

.detail-sizes { display: flex; gap: 10px; flex-wrap: wrap; }
.detail-sizes .size-chip { min-width: 150px; padding: 10px 16px; font-size: 15px; align-items: flex-start; text-align: left; }

/* ---------- 工坊：产品选择器 ---------- */
.studio-products { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.studio-prod {
  display: flex; flex-direction: column; align-items: flex-start; gap: 1px;
  padding: 10px 14px; border: 1.5px solid var(--line); border-radius: 12px;
  background: var(--card); font-family: inherit; text-align: left;
  transition: border-color .2s, background .2s, transform .15s, box-shadow .2s;
}
.studio-prod b { font-size: 13.5px; font-weight: 700; color: var(--ink); letter-spacing: .02em; }
.studio-prod em { font-style: normal; font-size: 11.5px; color: var(--ink-3); }
.studio-prod:hover { border-color: var(--accent); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.studio-prod.selected { border-color: var(--accent); background: var(--accent); }
.studio-prod.selected b, .studio-prod.selected em { color: #fff; }
.studio-prod.selected em { color: rgba(255,255,255,.85); }