/* ============================================================
   FUNCIPAX · 乐奇派 · 高端行李箱制造品牌 · 设计系统
   方向：编辑部式极简（editorial minimal）——真实摄影、衬线大标题、
   大留白、细线分隔、黄铜金属点缀。参考高端旅行箱品牌的克制语言。
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --paper: #F6F4EF;
  --paper-2: #EFEBE3;
  --ink: #16130E;
  --ink-2: #4A453C;
  --ink-3: #8B857A;
  --line: #DED8CC;
  --line-2: #C8C0B0;
  --brass: #9A7B4F;
  --brass-deep: #7E6238;
  --brass-soft: #EDE4D4;
  --white: #FFFFFF;

  --serif: "Didot", "Bodoni MT", "Playfair Display", Georgia, "Songti SC", "STSong", serif;
  --sans: "Helvetica Neue", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;

  --gap: clamp(20px, 4vw, 56px);
  --sech: clamp(72px, 9vw, 128px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul, ol { list-style: none; }

.wrap { max-width: 1320px; margin: 0 auto; padding: 0 clamp(20px, 4vw, 48px); }
.wrap-narrow { max-width: 920px; margin: 0 auto; padding: 0 clamp(20px, 4vw, 48px); }

/* ---------- Typography ---------- */
h1, h2, h3, .serif {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: 0.005em;
}
.display {
  font-size: clamp(40px, 6vw, 84px);
  line-height: 1.04;
}
h2.title { font-size: clamp(30px, 4vw, 52px); }
.kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--brass);
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
.kicker::before { content: ""; width: 34px; height: 1px; background: var(--brass); }
.lead { font-size: clamp(16px, 1.5vw, 19px); color: var(--ink-2); line-height: 1.75; }
.serif-it { font-style: italic; }

/* ---------- Buttons（细边框/方角，无渐变） ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 17px 38px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  transition: all 0.25s ease;
  white-space: nowrap;
  background: transparent;
}
.btn-solid { background: var(--ink); color: var(--paper); }
.btn-solid:hover { background: var(--brass-deep); border-color: var(--brass-deep); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-brass { border-color: var(--brass); color: var(--brass-deep); }
.btn-brass:hover { background: var(--brass); color: #fff; }
.btn-sm { padding: 12px 24px; font-size: 11px; }
.btn-block { width: 100%; }
.btn .arr { font-family: var(--sans); letter-spacing: 0; }

/* ---------- 顶栏 ---------- */
.topbar {
  background: var(--ink);
  color: #B9B2A5;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-align: center;
  padding: 10px 16px;
}
.topbar b { color: #E8DFCB; font-weight: 500; }

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 244, 239, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 84px;
}
.brand {
  display: flex; flex-direction: column; line-height: 1;
  font-family: var(--serif);
}
.brand b { font-size: 25px; font-weight: 600; letter-spacing: 0.18em; }
.brand span {
  font-family: var(--sans);
  font-size: 8.5px; letter-spacing: 0.52em;
  color: var(--brass); text-transform: uppercase;
  margin-top: 6px; font-weight: 600;
}
.nav { display: flex; gap: 40px; }
.nav a {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: all 0.2s;
}
.nav a:hover, .nav a.active { color: var(--ink); border-bottom-color: var(--brass); }

.head-acts { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  width: 42px; height: 42px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 0;
  font-size: 17px;
  color: var(--ink-2);
  transition: all 0.2s;
}
.icon-btn:hover { color: var(--ink); background: var(--paper-2); }
.lang-sw {
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em;
  color: var(--ink-2);
  padding: 9px 14px;
  border: 1px solid var(--line-2);
  transition: all 0.2s;
  text-transform: uppercase;
}
.lang-sw:hover { border-color: var(--ink); color: var(--ink); }
.lang-sw b { color: var(--brass-deep); }
.menu-btn { display: none; }

/* ---------- Hero：整幅摄影 + 衬线大字 ---------- */
.hero { position: relative; background: var(--ink); color: var(--paper); overflow: hidden; }
.hero-img {
  width: 100%; height: clamp(520px, 82vh, 860px);
  object-fit: cover;
  object-position: center;
  opacity: 0.86;
}
.hero-body {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: clamp(28px, 5vw, 72px);
  background: linear-gradient(180deg, rgba(22,19,14,0.05) 30%, rgba(22,19,14,0.82) 100%);
}
.hero-kicker {
  font-size: 11px; font-weight: 600; letter-spacing: 0.34em; text-transform: uppercase;
  color: #D8C9A8; margin-bottom: 22px;
}
.hero-h {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(38px, 5.6vw, 78px);
  line-height: 1.06;
  max-width: 13em;
  color: #F7F4EC;
}
.hero-h em { font-style: italic; color: #E4D5B0; }
.hero-sub { max-width: 520px; color: #CFC8BA; margin: 26px 0 36px; font-size: clamp(15px, 1.4vw, 17.5px); line-height: 1.8; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero .btn { border-color: rgba(247,244,236,0.85); color: #F7F4EC; }
.hero .btn:hover { background: var(--paper); color: var(--ink); }
.hero .btn-solid { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.hero .btn-solid:hover { background: var(--brass); border-color: var(--brass); color: #fff; }
.hero-facts {
  display: flex; gap: clamp(28px, 5vw, 76px);
  border-top: 1px solid rgba(247,244,236,0.25);
  margin-top: clamp(30px, 4vw, 54px);
  padding-top: 26px;
  flex-wrap: wrap;
}
.hero-facts b { font-family: var(--serif); font-size: clamp(24px, 2.6vw, 36px); display: block; color: #F2EDE1; }
.hero-facts span { font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: #A79F8E; }

/* ---------- 数字带（工厂实力） ---------- */
.numbers { border-bottom: 1px solid var(--line); background: var(--paper); }
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.num-cell {
  padding: clamp(30px, 3.6vw, 52px) 20px;
  text-align: center;
  border-left: 1px solid var(--line);
}
.num-cell:first-child { border-left: 0; }
.num-cell b { font-family: var(--serif); font-size: clamp(30px, 3.4vw, 48px); display: block; line-height: 1.05; }
.num-cell b i { font-style: normal; color: var(--brass); }
.num-cell span { font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-3); margin-top: 10px; display: block; }

/* ---------- 章节头 ---------- */
.sec { padding: var(--sech) 0; }
.sec-head { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: end; margin-bottom: clamp(36px, 5vw, 64px); }
.sec-head .lead { margin-top: 20px; max-width: 560px; }
.sec-link {
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink); border-bottom: 1px solid var(--brass);
  padding-bottom: 6px;
  transition: color 0.2s;
  white-space: nowrap;
}
.sec-link:hover { color: var(--brass-deep); }

/* ---------- 系列（Collection）：大图编辑排版 ---------- */
.collections { display: grid; gap: clamp(28px, 4vw, 56px); }
.col-row {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 4.5vw, 72px);
  align-items: center;
}
.col-row.flip .col-media { order: 2; }
.col-media { position: relative; overflow: hidden; background: var(--white); }
.col-media img {
  width: 100%; height: clamp(300px, 40vw, 520px);
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.2, 0.6, 0.2, 1);
}
.col-row:hover .col-media img { transform: scale(1.045); }
.col-no {
  position: absolute; top: 18px; left: 22px;
  font-family: var(--serif); font-style: italic;
  font-size: 15px; color: var(--brass-deep);
  background: rgba(246,244,239,0.92);
  padding: 6px 14px; letter-spacing: 0.08em;
}
.col-body h2 { font-size: clamp(26px, 3vw, 40px); margin: 16px 0 18px; }
.col-body p { color: var(--ink-2); line-height: 1.85; max-width: 480px; }
.col-tags { display: flex; flex-wrap: wrap; gap: 10px 26px; margin: 24px 0 30px; }
.col-tags li {
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-3);
  display: flex; gap: 10px; align-items: center;
}
.col-tags li::before { content: ""; width: 18px; height: 1px; background: var(--brass); }

/* ---------- 产品卡（目录页/首页通用） ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 2.6vw, 36px); }
.prod-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.pcard { background: var(--white); border: 1px solid var(--line); transition: border-color 0.25s, transform 0.25s; }
.pcard:hover { border-color: var(--line-2); transform: translateY(-4px); }
.pcard-media { position: relative; overflow: hidden; aspect-ratio: 4/3.1; background: #FAF8F4; }
.pcard-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.pcard:hover .pcard-media img { transform: scale(1.05); }
.pcard-flag {
  position: absolute; top: 14px; left: 14px;
  background: var(--ink); color: var(--paper);
  font-size: 9.5px; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase;
  padding: 6px 12px;
}
.pcard-flag.brass { background: var(--brass); color: #fff; }
.pcard-body { padding: 22px 24px 26px; border-top: 1px solid var(--line); }
.pcard-cat { font-size: 10px; letter-spacing: 0.26em; text-transform: uppercase; color: var(--brass-deep); font-weight: 600; }
.pcard-name { font-family: var(--serif); font-size: 21px; margin: 10px 0 6px; line-height: 1.25; }
.pcard-name a:hover { color: var(--brass-deep); }
.pcard-sub { font-size: 13px; color: var(--ink-3); line-height: 1.6; }
.pcard-foot {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line);
}
.pcard-nums { font-size: 11px; letter-spacing: 0.14em; color: var(--ink-3); text-transform: uppercase; }
.pcard-nums b { color: var(--ink); font-weight: 600; }
.pcard-cta {
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink); border-bottom: 1px solid var(--brass); padding-bottom: 3px;
}
.pcard-cta:hover { color: var(--brass-deep); }

/* ---------- 工厂段（深色） ---------- */
.factory { background: var(--ink); color: #CFC8BA; }
.factory .kicker { color: #C9B98F; }
.factory .kicker::before { background: #C9B98F; }
.factory h2.title { color: #F2EDE1; }
.factory-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 80px); align-items: center; }
.factory-img { position: relative; }
.factory-img img { width: 100%; height: clamp(320px, 44vw, 560px); object-fit: cover; filter: saturate(0.88); }
.factory-img::after {
  content: ""; position: absolute; inset: 0;
  border: 1px solid rgba(201,185,143,0.35);
  transform: translate(16px, 16px);
  pointer-events: none;
}
.fact-list { margin: 34px 0 38px; display: grid; }
.fact-list li {
  display: grid; grid-template-columns: 120px 1fr; gap: 18px;
  padding: 16px 0; border-top: 1px solid rgba(247,244,236,0.14);
  font-size: 14.5px;
}
.fact-list li:last-child { border-bottom: 1px solid rgba(247,244,236,0.14); }
.fact-list b { color: #F2EDE1; font-family: var(--serif); font-size: 17px; font-weight: 500; letter-spacing: 0.04em; }
.fact-list span { color: #ABA48F; line-height: 1.7; }

/* ---------- 信任 / 资质 ---------- */
.trust-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-2); }
.trust-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: clamp(28px, 3vw, 44px) 0;
}
.trust-cell { padding: 0 clamp(14px, 2vw, 30px); border-left: 1px solid var(--line-2); }
.trust-cell:first-child { border-left: 0; padding-left: 0; }
.trust-cell b { font-family: var(--serif); font-size: 18px; display: block; margin-bottom: 6px; letter-spacing: 0.03em; }
.trust-cell span { font-size: 12.5px; color: var(--ink-3); line-height: 1.6; display: block; }

/* ---------- 询盘表单（线索核心） ---------- */
.inquiry { background: var(--paper-2); border-top: 1px solid var(--line); scroll-margin-top: 80px; }
.inq-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(36px, 5vw, 88px); }
.inq-side h2 { margin: 18px 0 20px; }
.inq-side p { color: var(--ink-2); line-height: 1.85; max-width: 440px; }
.inq-list { margin-top: 32px; display: grid; }
.inq-list li {
  display: flex; gap: 16px; align-items: baseline;
  padding: 15px 2px; border-top: 1px solid var(--line-2);
  font-size: 14px; color: var(--ink-2);
}
.inq-list li:last-child { border-bottom: 1px solid var(--line-2); }
.inq-list .n { font-family: var(--serif); font-style: italic; color: var(--brass); font-size: 15px; }
.inq-contact { margin-top: 34px; display: grid; gap: 8px; font-size: 13.5px; color: var(--ink-2); }
.inq-contact a { border-bottom: 1px solid var(--line-2); }
.inq-contact a:hover { color: var(--brass-deep); border-bottom-color: var(--brass); }
.inq-contact b { color: var(--ink); font-weight: 600; }

.form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; background: var(--white); border: 1px solid var(--line); padding: clamp(26px, 3.4vw, 46px); }
.f-full { grid-column: 1 / -1; }
.fld { display: grid; gap: 8px; }
.fld label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--ink-3);
}
.fld input, .fld select, .fld textarea {
  border: 0; border-bottom: 1px solid var(--line-2);
  background: transparent; padding: 11px 2px;
  font: inherit; font-size: 15px; color: var(--ink);
  outline: none; border-radius: 0;
  transition: border-color 0.2s;
  appearance: none;
}
.fld select {
  background: var(--white) url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='9' height='6'%3E%3Cpath d='M1 1l3.5 3.5L8 1' stroke='%238B857A' stroke-width='1.4' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 4px center;
}
.fld input:focus, .fld select:focus, .fld textarea:focus { border-bottom-color: var(--brass); }
.fld input::placeholder, .fld textarea::placeholder { color: #B4AC9C; }
.fld textarea { min-height: 96px; resize: vertical; }
.form-note { grid-column: 1/-1; font-size: 12px; color: var(--ink-3); line-height: 1.7; }
.form .btn { grid-column: 1/-1; }

/* ---------- 引言横幅 ---------- */
.quote-band { background: var(--ink); color: #E9E2D2; text-align: center; padding: var(--sech) 24px; }
.quote-band .q {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  font-size: clamp(24px, 3.4vw, 42px); line-height: 1.4; max-width: 22em; margin: 0 auto;
}
.quote-band .who { margin-top: 26px; font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: #A79F8E; }

/* ---------- 页脚 ---------- */
.footer { background: var(--ink); color: #A8A08F; }
.foot-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(30px, 4vw, 60px);
  padding: clamp(52px, 6vw, 84px) 0 44px;
}
.footer .brand b { color: #F2EDE1; }
.footer .brand span { color: #C9B98F; }
.foot-brand p { font-size: 13.5px; line-height: 1.8; margin: 18px 0 22px; max-width: 300px; }
.foot-col h4 {
  font-size: 10.5px; letter-spacing: 0.28em; text-transform: uppercase;
  color: #E9E2D2; margin-bottom: 20px; font-weight: 600;
}
.foot-col a { display: block; font-size: 13.5px; padding: 6px 0; color: #A8A08F; transition: color 0.2s; }
.foot-col a:hover { color: #F2EDE1; }
.foot-contact { font-size: 13px; line-height: 2; }
.foot-contact b { color: #E9E2D2; font-weight: 500; }
.foot-bottom {
  border-top: 1px solid rgba(247,244,236,0.12);
  padding: 22px 0 30px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  font-size: 12px; color: #7E7768; letter-spacing: 0.04em;
}
.foot-bottom a { color: #7E7768; }
.foot-bottom a:hover { color: #E9E2D2; }

/* ---------- 面包屑 ---------- */
.crumbs {
  display: flex; gap: 12px; align-items: center;
  font-size: 11px; letter-spacing:  0.18em; text-transform: uppercase;
  color: var(--ink-3);
  padding: 30px 0 8px;
}
.crumbs a:hover { color: var(--brass-deep); }
.crumbs .sep { color: var(--line-2); }
.crumbs .cur { color: var(--ink); }

/* ---------- 目录页工具条 ---------- */
.page-head { padding: 26px 0 30px; max-width: 760px; }
.page-head h1 { font-size: clamp(32px, 4.4vw, 54px); margin: 14px 0 16px; }
.page-head p { color: var(--ink-2); line-height: 1.8; }
.filter-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 16px 0; margin-bottom: clamp(32px, 4vw, 52px);
  flex-wrap: wrap;
}
.fchips { display: flex; gap: 6px 26px; flex-wrap: wrap; }
.fchip {
  font-size: 11px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-3); padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: all 0.2s;
}
.fchip:hover { color: var(--ink); }
.fchip.on { color: var(--ink); border-bottom-color: var(--brass); }
.fcount { font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-3); }

/* ---------- 详情页 ---------- */
.pd { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: clamp(32px, 4.6vw, 76px); padding: 28px 0 10px; align-items: start; }
.pd-gallery { position: sticky; top: 104px; }
.pd-main-img { background: var(--white); border: 1px solid var(--line); overflow: hidden; }
.pd-main-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.pd-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 12px; }
.pd-thumb {
  border: 1px solid var(--line); overflow: hidden; background: var(--white);
  opacity: 0.65; transition: all 0.2s; padding: 0;
}
.pd-thumb img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.pd-thumb.on, .pd-thumb:hover { opacity: 1; border-color: var(--brass); }

.pd-info h1 { font-size: clamp(28px, 3.4vw, 42px); margin: 14px 0 14px; }
.pd-lead { color: var(--ink-2); line-height: 1.85; font-size: 15.5px; max-width: 520px; }
.pd-spec { margin: 30px 0; border-top: 1px solid var(--line); }
.pd-spec li {
  display: grid; grid-template-columns: 170px 1fr; gap: 20px;
  padding: 13px 2px; border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.pd-spec li span:first-child { color: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase; font-size: 11px; padding-top: 3px; }
.pd-spec li span:last-child { color: var(--ink); }
.pd-cta-row { display: flex; gap: 14px; margin: 32px 0 14px; flex-wrap: wrap; }
.pd-assure { display: flex; gap: 26px; flex-wrap: wrap; margin-top:  22px; }
.pd-assure span { font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); display: flex; gap: 9px; align-items: center; }
.pd-assure span::before { content: ""; width: 16px; height: 1px; background: var(--brass); }

/* 详情页色卡 */
.swatches { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0 4px; }
.sw { width: 26px; height: 26px; border: 1px solid var(--line-2); outline: 1px solid transparent; outline-offset: 3px; transition: outline-color 0.2s; }
.sw.on { outline-color: var(--brass); }
.lab { font-size: 10px; font-weight: 600; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ink-3); margin-top: 22px; display: block; }

/* ---------- 详情标签页 ---------- */
.tabs { border-top: 1px solid var(--line); margin-top: clamp(40px, 5vw, 64px); }
.tab-nav { display: flex; gap: 44px; overflow-x: auto; }
.tab-btn {
  padding: 20px 2px 18px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-3); border-bottom: 1px solid transparent; margin-bottom: -1px;
  white-space: nowrap;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.on { color: var(--ink); border-bottom-color: var(--brass); }
.tab-panel { display: none; padding: clamp(30px, 4vw, 48px) 0; }
.tab-panel.on { display: block; }
.tab-panel h3 { font-size: 24px; margin-bottom: 18px; }
.tab-panel p { color: var(--ink-2); line-height: 1.9; max-width: 760px; margin-bottom: 14px; }
.spec-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 60px; max-width: 900px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 30px;
  transform: translate(-50%, 90px);
  background: var(--ink); color: var(--paper);
  border-left: 2px solid var(--brass);
  padding: 15px 28px;
  font-size: 12.5px; letter-spacing: 0.08em;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.25, 1);
  z-index: 999; max-width: 90vw;
}
.toast.show { transform: translate(-50%, 0); }

/* ---------- 移动菜单 ---------- */
.m-nav {
  display: none; flex-direction: column;
  border-top: 1px solid var(--line); background: var(--paper);
  padding: 10px 24px 22px;
}
.m-nav.open { display: flex; }
.m-nav a {
  padding: 15px 4px; font-size: 12px; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase;
  border-bottom: 1px solid var(--line); color: var(--ink-2);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .nav { display: none; }
  .menu-btn { display: inline-flex; }
  .head-cta { display: none; }
  .col-row { grid-template-columns: 1fr; }
  .col-row.flip .col-media { order: 0; }
  .factory-grid, .inq-grid { grid-template-columns: 1fr; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .foot-main { grid-template-columns: 1fr 1fr; }
  .pd { grid-template-columns: 1fr; }
  .pd-gallery { position: static; }
}
@media (max-width: 680px) {
  .numbers-grid { grid-template-columns: 1fr 1fr; }
  .num-cell:nth-child(3) { border-left: 0; }
  .num-cell { border-top: 1px solid var(--line); }
  .num-cell:nth-child(-n+2) { border-top: 0; }
  .trust-row { grid-template-columns: 1fr; }
  .trust-cell { border-left: 0; border-top: 1px solid var(--line-2); padding: 18px 0; }
  .trust-cell:first-child { border-top: 0; }
  .form { grid-template-columns: 1fr; padding: 24px 20px; }
  .prod-grid { grid-template-columns: 1fr; }
  .sec-head { grid-template-columns: 1fr; align-items: start; }
  .pd-spec li { grid-template-columns: 120px 1fr; }
  .spec-cols { grid-template-columns: 1fr; }
  .foot-main { grid-template-columns: 1fr; }
  .brand b { font-size: 21px; }
  .hero-facts { gap: 22px; }
}