/* ==========================================================
   泰澜化工 — 全站样式（简约大气 / 深蓝+白+金）
   ========================================================== */
:root {
  --navy: #0f2740;
  --navy-2: #16375a;
  --navy-3: #1f4a75;
  --gold: #c8a45c;
  --gold-2: #e0c48c;
  --ink: #1c2733;
  --body: #4a5765;
  --muted: #7d8a99;
  --line: #e4e9ef;
  --bg: #ffffff;
  --bg-soft: #f6f8fa;
  --white: #fff;
  --radius: 4px;
  --shadow: 0 2px 14px rgba(15, 39, 64, .07);
  --shadow-lg: 0 10px 40px rgba(15, 39, 64, .12);
  --maxw: 1240px;
  --ease: cubic-bezier(.4, 0, .2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--body);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 14px; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---------- 顶栏 ---------- */
.hd {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.hd__in { height: 76px; display: flex; align-items: center; gap: 40px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo img { height: 52px; width: auto; }
.logo__txt b {
  display: block; font-size: 19px; color: var(--navy);
  letter-spacing: .06em; font-weight: 700; line-height: 1.2;
}
.logo__txt span {
  display: block; font-size: 10px; color: var(--muted);
  letter-spacing: .18em; text-transform: uppercase;
}

.nav { display: flex; gap: 34px; margin-left: auto; align-items: center; }
.nav a {
  font-size: 14.5px; color: var(--ink); font-weight: 500;
  padding: 6px 0; position: relative; transition: color .25s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--gold); transition: width .3s var(--ease);
}
.nav a:hover { color: var(--navy-3); }
.nav a:hover::after, .nav a.on::after { width: 100%; }
.nav a.on { color: var(--navy); font-weight: 600; }

.hd__act { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 26px; border-radius: var(--radius);
  font-size: 14px; font-weight: 600; letter-spacing: .02em;
  transition: all .28s var(--ease); white-space: nowrap;
}
.btn--pri { background: var(--navy); color: #fff; }
.btn--pri:hover { background: var(--navy-3); transform: translateY(-2px); box-shadow: 0 8px 22px rgba(15, 39, 64, .22); }
.btn--gold { background: var(--gold); color: #fff; }
.btn--gold:hover { background: #b8933f; transform: translateY(-2px); box-shadow: 0 8px 22px rgba(200, 164, 92, .35); }
.btn--line { border: 1px solid var(--navy); color: var(--navy); background: transparent; }
.btn--line:hover { background: var(--navy); color: #fff; }
.btn--ghost { border: 1px solid var(--line); color: var(--ink); background: #fff; }
.btn--ghost:hover { border-color: var(--navy); color: var(--navy); }
.btn--sm { height: 36px; padding: 0 18px; font-size: 13px; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: .55; pointer-events: none; }

.link-u {
  color: var(--navy-3); font-weight: 600; font-size: 14px;
  display: inline-flex; align-items: center; gap: 6px;
  transition: gap .25s var(--ease);
}
.link-u:hover { gap: 11px; }
.link-u::after { content: "\2192"; font-size: 15px; }

/* ---------- 语言切换 ---------- */
.lang {
  position: relative;
  flex-shrink: 0;
}
.lang__btn {
  display: flex; align-items: center; gap: 7px;
  height: 36px; padding: 0 13px; border-radius: 4px;
  border: 1px solid var(--line); background: #fff;
  font-size: 13px; font-weight: 600; color: var(--navy);
  transition: all .25s var(--ease);
}
.lang__btn svg { width: 15px; height: 15px; }
.lang__btn:hover { border-color: var(--navy-3); background: var(--bg-soft); }
.lang__menu {
  position: absolute; top: calc(100% + 6px); right: 0; min-width: 132px;
  background: #fff; border: 1px solid var(--line); border-radius: 4px;
  box-shadow: var(--shadow-lg); padding: 5px; display: none; z-index: 300;
}
.lang__menu.open { display: block; }
.lang__menu button {
  display: block; width: 100%; text-align: left; padding: 9px 12px;
  font-size: 13.5px; color: var(--body); border-radius: 3px;
}
.lang__menu button:hover { background: var(--bg-soft); color: var(--navy); }
.lang__menu button.on { color: var(--navy); font-weight: 600; background: var(--bg-soft); }

/* 产品卡图片计数 */
.pcard__cnt {
  position: absolute; right: 10px; bottom: 10px;
  display: flex; align-items: center; gap: 4px;
  background: rgba(15, 39, 64, .82); color: #fff;
  font-size: 11px; font-weight: 600; padding: 3px 8px; border-radius: 3px;
  backdrop-filter: blur(3px);
}
.pcard__cnt svg { width: 12px; height: 12px; }

/* 详情弹层图片提示 */
.modal__hint {
  font-size: 12px; color: var(--muted); margin-top: 11px; line-height: 1.6;
}

/* ---------- 用户菜单 ---------- */
.user { position: relative; }
.user__btn {
  display: flex; align-items: center; gap: 9px; height: 40px; padding: 0 8px 0 14px;
  border: 1px solid var(--line); border-radius: 22px; background: #fff;
  font-size: 13.5px; color: var(--navy); font-weight: 600;
  transition: border-color .25s;
}
.user__btn:hover { border-color: var(--navy-3); }
.user__av {
  width: 27px; height: 27px; border-radius: 50%; background: var(--navy);
  color: #fff; display: grid; place-items: center; font-size: 12px; font-weight: 700;
}
.user__menu {
  position: absolute; right: 0; top: calc(100% + 10px); width: 214px;
  background: #fff; border: 1px solid var(--line); border-radius: 6px;
  box-shadow: var(--shadow-lg); padding: 6px; display: none;
}
.user__menu.open { display: block; }
.user__menu a, .user__menu button {
  display: flex; width: 100%; align-items: center; gap: 9px;
  padding: 10px 13px; font-size: 13.5px; color: var(--body);
  border-radius: 4px; text-align: left; transition: background .2s;
}
.user__menu a:hover, .user__menu button:hover { background: var(--bg-soft); color: var(--navy); }
.user__hd { padding: 11px 13px; border-bottom: 1px solid var(--line); margin-bottom: 5px; }
.user__hd b { display: block; font-size: 14px; color: var(--navy); }
.user__hd span { font-size: 12px; color: var(--muted); }

/* ---------- HERO ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 48%, var(--navy-3) 100%);
  color: #fff; padding: 92px 0 96px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 88% 18%, rgba(200, 164, 92, .17), transparent 42%),
    radial-gradient(circle at 12% 88%, rgba(255, 255, 255, .06), transparent 45%);
}
.hero__in {
  position: relative; display: grid; grid-template-columns: 1.06fr .94fr;
  gap: 64px; align-items: center;
}
.hero__tag {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--gold-2); border: 1px solid rgba(200, 164, 92, .42);
  padding: 6px 15px; border-radius: 20px; margin-bottom: 26px;
}
.hero__tag i { width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }
.hero h1 {
  font-size: 47px; line-height: 1.24; font-weight: 700;
  color: #fff; letter-spacing: -.01em; margin-bottom: 22px;
}
.hero h1 em { font-style: normal; color: var(--gold-2); }
.hero__lead { font-size: 16.5px; color: rgba(255, 255, 255, .8); margin-bottom: 34px; max-width: 540px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  margin-top: 52px; padding-top: 34px; border-top: 1px solid rgba(255, 255, 255, .15);
}
.hero__stat b { display: block; font-size: 30px; color: #fff; font-weight: 700; line-height: 1.1; }
.hero__stat span { font-size: 12.5px; color: rgba(255, 255, 255, .62); letter-spacing: .04em; }

.hero__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.hero__cell {
  aspect-ratio: 1; border-radius: 6px; overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .16);
}
.hero__cell img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.hero__cell:hover img { transform: scale(1.07); }
.hero__seal {
  position: absolute; right: -14px; bottom: -22px;
  background: #fff; border-radius: 6px; padding: 16px 22px;
  box-shadow: var(--shadow-lg); display: flex; gap: 13px; align-items: center;
}
.hero__seal i {
  width: 38px; height: 38px; border-radius: 50%; background: var(--gold);
  color: #fff; display: grid; place-items: center; font-style: normal;
  font-size: 17px; flex-shrink: 0;
}
.hero__seal b { display: block; font-size: 13.5px; color: var(--navy); }
.hero__seal span { font-size: 11.5px; color: var(--muted); }
.hero__vis { position: relative; }

/* ---------- 顶部品牌横幅（对齐参考图版式） ---------- */
.banner {
  position: relative; width: 100%; overflow: hidden;
  background: #eef3f8;
}
.banner img { width: 100%; height: auto; display: block; }
.banner__cat {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 18px; padding: 26px 0 34px; background: #fff;
  border-bottom: 1px solid var(--line);
}
.banner__cat a { text-align: center; transition: transform .28s var(--ease); }
.banner__cat a:hover { transform: translateY(-3px); }
.banner__cat i {
  display: block; width: 44px; height: 44px; border-radius: 50%;
  margin: 0 auto 11px; border: 1px solid var(--line);
  background: var(--bg-soft) no-repeat center/cover;
}
.banner__cat span { font-size: 13.5px; color: var(--body); }
.banner__cat a:hover span { color: var(--navy); font-weight: 600; }

/* ---------- 公司概览条 ---------- */
.facts { background: var(--navy); color: #fff; padding: 46px 0; }
.facts__g { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.fact__n {
  font-size: 34px; font-weight: 700; color: var(--gold-2);
  line-height: 1.1; margin-bottom: 8px;
}
.fact__t { font-size: 15px; color: #fff; font-weight: 600; margin-bottom: 6px; }
.fact__d { font-size: 13px; color: rgba(255, 255, 255, .62); }

@media (max-width: 900px) {
  .banner__cat { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .facts__g { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}
@media (max-width: 640px) {
  .banner__cat { grid-template-columns: repeat(2, 1fr); }
  .facts__g { grid-template-columns: 1fr; }
  .fact__n { font-size: 28px; }
}

/* ---------- 信任条 ---------- */
.trust { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 26px 0; }
.trust__in { display: flex; align-items: center; justify-content: space-between; gap: 26px; flex-wrap: wrap; }
.trust__lb {
  font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted); font-weight: 600; flex-shrink: 0;
}
.trust__its { display: flex; gap: 36px; flex-wrap: wrap; }
.trust__it { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--body); font-weight: 500; }
.trust__it svg { width: 16px; height: 16px; color: var(--gold); flex-shrink: 0; }

/* ---------- 区块 ---------- */
.sec { padding: 92px 0; }
.sec--soft { background: var(--bg-soft); }
.sec--navy { background: var(--navy); color: #fff; }
.sec__hd { text-align: center; max-width: 700px; margin: 0 auto 54px; }
.sec__eb {
  display: inline-block; font-size: 12px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--gold); font-weight: 700; margin-bottom: 15px;
}
.sec__ti { font-size: 33px; color: var(--navy); font-weight: 700; line-height: 1.34; letter-spacing: -.01em; }
.sec__sb { font-size: 15.5px; color: var(--body); margin-top: 15px; }
.sec--navy .sec__ti { color: #fff; }
.sec--navy .sec__sb { color: rgba(255, 255, 255, .74); }
.sec__rule { width: 46px; height: 2px; background: var(--gold); margin: 20px auto 0; }

/* ---------- 分类卡 ---------- */
.cats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cat {
  background: #fff; border: 1px solid var(--line); border-radius: 6px;
  padding: 26px 22px; transition: all .3s var(--ease); position: relative; overflow: hidden;
}
.cat::before {
  content: ""; position: absolute; left: 0; top: 0; width: 3px; height: 0;
  background: var(--gold); transition: height .35s var(--ease);
}
.cat:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.cat:hover::before { height: 100%; }
.cat__n {
  display: inline-grid; place-items: center; width: 38px; height: 38px;
  background: var(--bg-soft); border-radius: 5px; color: var(--navy);
  font-weight: 700; font-size: 13px; margin-bottom: 16px;
}
.cat h3 { font-size: 15.5px; color: var(--navy); font-weight: 600; margin-bottom: 8px; line-height: 1.5; }
.cat p { font-size: 13px; color: var(--muted); }

/* ---------- 产品卡 ---------- */
.pgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.pcard {
  background: #fff; border: 1px solid var(--line); border-radius: 6px;
  overflow: hidden; transition: all .32s var(--ease); display: flex; flex-direction: column;
}
.pcard:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.pcard__img { aspect-ratio: 4/3; overflow: hidden; background: var(--bg-soft); position: relative; }
.pcard__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.pcard:hover .pcard__img img { transform: scale(1.06); }
.pcard__tag {
  position: absolute; top: 12px; left: 12px; background: var(--gold); color: #fff;
  font-size: 10.5px; padding: 3px 9px; border-radius: 2px; letter-spacing: .08em; font-weight: 600;
}
.pcard__bd { padding: 18px 18px 20px; flex: 1; display: flex; flex-direction: column; }
.pcard__sku { font-size: 11px; color: var(--gold); letter-spacing: .1em; font-weight: 700; margin-bottom: 7px; }
.pcard__cn { font-size: 15.5px; color: var(--navy); font-weight: 600; margin-bottom: 5px; line-height: 1.5; }
.pcard__en { font-size: 12px; color: var(--muted); margin-bottom: 13px; line-height: 1.55; }
.pcard__mt { display: flex; gap: 8px; flex-wrap: wrap; margin-top: auto; padding-top: 13px; border-top: 1px solid var(--line); }
.pcard__mt span { font-size: 11px; color: var(--body); background: var(--bg-soft); padding: 3px 9px; border-radius: 2px; }

/* ---------- 优势 ---------- */
.advs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.adv { position: relative; padding-top: 26px; border-top: 2px solid var(--line); }
.adv__n {
  position: absolute; top: -13px; left: 0; background: #fff; padding-right: 14px;
  font-size: 12px; color: var(--gold); font-weight: 700; letter-spacing: .1em;
}
.sec--soft .adv__n { background: var(--bg-soft); }
.adv__ico {
  width: 46px; height: 46px; border-radius: 6px; background: var(--navy);
  color: var(--gold-2); display: grid; place-items: center; margin-bottom: 17px;
}
.adv__ico svg { width: 21px; height: 21px; }
.adv h3 { font-size: 16.5px; color: var(--navy); font-weight: 600; margin-bottom: 10px; line-height: 1.5; }
.adv p { font-size: 13.5px; color: var(--body); }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.fl {
  background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 6px; padding: 28px 24px;
}
.fl__n { font-size: 32px; color: rgba(200, 164, 92, .34); font-weight: 700; line-height: 1; margin-bottom: 14px; }
.fl h3 { font-size: 16px; color: #fff; font-weight: 600; margin-bottom: 9px; }
.fl p { font-size: 13px; color: rgba(255, 255, 255, .68); }

/* ---------- CTA ---------- */
.cta { background: linear-gradient(120deg, var(--navy) 0%, var(--navy-3) 100%); padding: 74px 0; color: #fff; position: relative; overflow: hidden; }
.cta::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 82% 30%, rgba(200, 164, 92, .18), transparent 45%); }
.cta__in { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta h2 { font-size: 31px; color: #fff; font-weight: 700; margin-bottom: 12px; line-height: 1.35; }
.cta p { color: rgba(255, 255, 255, .76); font-size: 15.5px; max-width: 560px; }
.cta__btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 页头 ---------- */
.phead {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff; padding: 62px 0; position: relative; overflow: hidden;
}
.phead::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 84% 26%, rgba(200, 164, 92, .16), transparent 44%); }
.phead__in { position: relative; }
.phead h1 { font-size: 37px; color: #fff; font-weight: 700; margin-bottom: 13px; letter-spacing: -.01em; }
.phead p { color: rgba(255, 255, 255, .76); font-size: 15.5px; max-width: 640px; }
.crumb { display: flex; align-items: center; gap: 9px; font-size: 12.5px; color: rgba(255, 255, 255, .55); margin-bottom: 16px; }
.crumb a:hover { color: var(--gold-2); }

/* ---------- 表单 ---------- */
.card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 34px; box-shadow: var(--shadow); }
.fld { margin-bottom: 20px; }
.fld label { display: block; font-size: 13px; color: var(--navy); font-weight: 600; margin-bottom: 8px; }
.fld label i { color: #d0021b; font-style: normal; margin-left: 3px; }
.fld input, .fld textarea, .fld select {
  width: 100%; height: 46px; padding: 0 14px;
  border: 1px solid var(--line); border-radius: 4px;
  background: #fff; color: var(--ink); transition: border-color .25s, box-shadow .25s; outline: none;
}
.fld textarea { height: auto; padding: 12px 14px; resize: vertical; min-height: 116px; line-height: 1.7; }
.fld input:focus, .fld textarea:focus, .fld select:focus { border-color: var(--navy-3); box-shadow: 0 0 0 3px rgba(31, 74, 117, .09); }
.fld input::placeholder, .fld textarea::placeholder { color: #a9b4c0; }
.fld__err { font-size: 12.5px; color: #d0021b; margin-top: 6px; display: none; }
.fld__err.show { display: block; }
.f2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.tip { background: var(--bg-soft); border-left: 3px solid var(--gold); padding: 15px 18px; border-radius: 0 4px 4px 0; font-size: 13px; color: var(--body); }
.tip b { color: var(--navy); }

.msg { padding: 13px 17px; border-radius: 4px; font-size: 13.5px; margin-bottom: 20px; display: none; align-items: center; gap: 9px; }
.msg.show { display: flex; }
.msg--ok { background: #edf9f1; color: #1a7f42; border: 1px solid #c4ebd3; }
.msg--er { background: #fdf0f0; color: #c02626; border: 1px solid #f5cdcd; }
.msg--wn { background: #fff8e6; color: #a3730a; border: 1px solid #f5e2b8; }

/* ---------- 登录 ---------- */
.auth { min-height: calc(100vh - 76px); display: grid; place-items: center; padding: 64px 24px; background: var(--bg-soft); }
.auth__box { width: 100%; max-width: 452px; }
.auth__hd { text-align: center; margin-bottom: 32px; }
.auth__hd h1 { font-size: 27px; color: var(--navy); font-weight: 700; margin-bottom: 10px; }
.auth__hd p { color: var(--muted); font-size: 14px; }
.auth__card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 36px; box-shadow: var(--shadow-lg); }
.tabs { display: flex; gap: 6px; background: var(--bg-soft); padding: 4px; border-radius: 5px; margin-bottom: 26px; }
.tabs button { flex: 1; height: 38px; border-radius: 4px; font-size: 13.5px; color: var(--body); font-weight: 600; transition: all .25s; }
.tabs button.on { background: #fff; color: var(--navy); box-shadow: 0 1px 4px rgba(15, 39, 64, .1); }
.code-row { display: flex; gap: 10px; }
.code-row input { flex: 1; }
.code-row button {
  flex-shrink: 0; height: 46px; padding: 0 17px; border-radius: 4px;
  background: var(--bg-soft); color: var(--navy); font-size: 13.5px; font-weight: 600;
  border: 1px solid var(--line); transition: all .25s;
}
.code-row button:hover:not([disabled]) { background: var(--navy); color: #fff; border-color: var(--navy); }
.code-row button[disabled] { opacity: .5; cursor: not-allowed; }
.auth__alt { display: flex; align-items: center; gap: 14px; margin: 24px 0 20px; color: var(--muted); font-size: 12px; }
.auth__alt::before, .auth__alt::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.oauth { display: flex; flex-direction: column; gap: 11px; }
.oauth button {
  height: 46px; border-radius: 4px; border: 1px solid var(--line);
  font-size: 14px; font-weight: 600; color: var(--ink); background: #fff;
  display: flex; align-items: center; justify-content: center; gap: 9px; transition: all .25s;
}
.oauth button:hover { border-color: var(--navy); color: var(--navy); background: var(--bg-soft); }
.oauth svg { width: 17px; height: 17px; }
.auth__ft { text-align: center; margin-top: 24px; font-size: 13px; color: var(--muted); }
.auth__ft a { color: var(--navy-3); font-weight: 600; }

/* ---------- 关于 ---------- */
.abt { display: grid; grid-template-columns: 1fr 1fr; gap: 66px; align-items: center; }
/* ---------- 关于页：工厂实景轮播 ---------- */
.abt__img {
  border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-lg);
  position: relative; background: var(--bg-soft);
}
.fslide { position: relative; width: 100%; aspect-ratio: 16/10; }
.fslide img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 0; transform: scale(1.06);
  transition: opacity .9s var(--ease), transform 6s linear;
}
.fslide img.on { opacity: 1; transform: scale(1); }
.fslide__dots {
  position: absolute; left: 0; right: 0; bottom: 12px;
  display: flex; justify-content: center; gap: 6px; z-index: 2;
}
.fslide__dots button {
  width: 7px; height: 7px; padding: 0; border-radius: 50%;
  border: 0; background: rgba(255, 255, 255, .55); cursor: pointer;
  transition: all .25s var(--ease);
}
.fslide__dots button.on { background: var(--gold-2); width: 20px; border-radius: 4px; }
.fslide__dots button:hover { background: var(--gold-2); }
.abt h2 { font-size: 30px; color: var(--navy); font-weight: 700; margin-bottom: 20px; line-height: 1.36; }
.abt p { margin-bottom: 17px; font-size: 15px; }
.abt p:last-of-type { margin-bottom: 26px; }

.mv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mvc { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 34px 30px; transition: all .3s var(--ease); text-align: center; }
.mvc:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.mvc__i { width: 56px; height: 56px; border-radius: 50%; background: var(--navy); color: var(--gold-2); display: grid; place-items: center; margin: 0 auto 20px; }
.mvc__i svg { width: 25px; height: 25px; }
.mvc h3 { font-size: 18px; color: var(--navy); font-weight: 600; margin-bottom: 11px; }
.mvc p { font-size: 13.5px; color: var(--body); }

.tl { position: relative; padding-left: 34px; }.tl::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: var(--line); }
.tli { position: relative; padding-bottom: 38px; }
.tli:last-child { padding-bottom: 0; }
.tli::before { content: ""; position: absolute; left: -34px; top: 6px; width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 3px solid var(--gold); }
.tli b { display: block; font-size: 16px; color: var(--navy); font-weight: 600; margin-bottom: 7px; }
.tli p { font-size: 14px; }

.cert { display: flex; gap: 14px; flex-wrap: wrap; }
.cert span { background: #fff; border: 1px solid var(--line); border-radius: 4px; padding: 11px 20px; font-size: 13.5px; color: var(--navy); font-weight: 500; }

/* ---------- 整合产区条 ---------- */
.region {
  margin-top: 36px; display: flex; align-items: center; justify-content: center;
  gap: 18px; flex-wrap: wrap; text-align: center;
}
.region__lb {
  font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted); font-weight: 600;
}
.region__items {
  font-size: 14px; color: var(--navy); font-weight: 500;
  letter-spacing: .04em; line-height: 1.8;
}

/* ---------- 联系 ---------- */
.ct { display: grid; grid-template-columns: 1fr 1.15fr; gap: 44px; align-items: start; }
.cti { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 32px; box-shadow: var(--shadow); }
.cti__row { display: flex; gap: 15px; padding: 19px 0; border-bottom: 1px solid var(--line); }
.cti__row:last-child { border-bottom: none; padding-bottom: 0; }
.cti__row:first-child { padding-top: 0; }
.cti__i { width: 40px; height: 40px; border-radius: 6px; background: var(--bg-soft); color: var(--navy); display: grid; place-items: center; flex-shrink: 0; }
.cti__i svg { width: 18px; height: 18px; }
.cti__lb { font-size: 12px; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 3px; }
.cti__vl { font-size: 14.5px; color: var(--navy); font-weight: 500; line-height: 1.7; word-break: break-word; }
.cti__vl a:hover { color: var(--navy-3); text-decoration: underline; }

/* ---------- 产品页 ---------- */
.filters {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  margin-bottom: 36px; padding: 20px 22px; background: #fff;
  border: 1px solid var(--line); border-radius: 8px;
}
.filters input[type=search] {
  flex: 1; min-width: 220px; height: 44px; padding: 0 15px;
  border: 1px solid var(--line); border-radius: 4px; outline: none; color: var(--ink);
  transition: border-color .25s;
}
.filters input[type=search]:focus { border-color: var(--navy-3); }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  height: 34px; padding: 0 15px; border-radius: 17px; border: 1px solid var(--line);
  font-size: 13px; color: var(--body); transition: all .25s; background: #fff;
}
.chip:hover { border-color: var(--navy-3); color: var(--navy); }
.chip.on { background: var(--navy); border-color: var(--navy); color: #fff; font-weight: 600; }
.pcount { font-size: 13.5px; color: var(--muted); margin-bottom: 22px; }

/* ---------- 产品页左侧类目树 ---------- */
.plist { display: grid; grid-template-columns: 258px 1fr; gap: 30px; align-items: start; }
.pmain { min-width: 0; }
.pside {
  position: sticky; top: 96px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  max-height: calc(100vh - 120px); display: flex; flex-direction: column;
}
.pside__hd {
  padding: 13px 18px; font-weight: 700; color: var(--navy); font-size: 15px;
  background: var(--bg-soft); border-bottom: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center; flex-shrink: 0;
}
.pside__total { font-size: 12px; color: var(--muted); font-weight: 400; }
.pside__body { overflow-y: auto; }
.pside__all, .pside__cat, .pside__prod { display: flex; width: 100%; align-items: center; text-align: left; transition: all .18s; }
.pside__all { padding: 11px 18px; font-weight: 600; color: var(--navy); font-size: 14px; border-bottom: 1px solid var(--line); }
.pside__all:hover { background: var(--bg-soft); }
.pside__all.on { color: var(--gold); }
.pside__n { margin-left: auto; font-size: 12px; color: var(--muted); font-weight: 400; }
.pside__grp { border-bottom: 1px solid var(--bg-soft); }
.pside__cat { padding: 10px 14px 10px 18px; font-size: 14px; color: var(--ink); }
.pside__cat:hover { background: var(--bg-soft); }
.pside__cat.on { color: var(--navy); font-weight: 600; background: var(--bg-soft); }
.pside__arr {
  width: 7px; height: 7px; border-right: 1.6px solid var(--muted); border-bottom: 1.6px solid var(--muted);
  transform: rotate(45deg); transition: transform .2s; margin-left: 8px; flex-shrink: 0;
}
.pside__grp.open .pside__arr { transform: rotate(225deg); }
.pside__subs { display: none; padding: 2px 0 8px; }
.pside__grp.open .pside__subs { display: block; }
.pside__prod { padding: 6px 18px 6px 32px; font-size: 13px; color: var(--body); }
.pside__prod:hover { color: var(--gold); background: var(--bg-soft); }
.pside__toggle { display: none; }
.pgrid--side { grid-template-columns: repeat(3, 1fr); }

/* 产品详情弹层 */
.modal {
  position: fixed; inset: 0; z-index: 200; background: rgba(15, 39, 64, .62);
  display: none; align-items: center; justify-content: center; padding: 30px; backdrop-filter: blur(3px);
}
.modal.open { display: flex; }
.modal__box {
  background: #fff; border-radius: 10px; max-width: 940px; width: 100%;
  max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-lg); position: relative;
}
.modal__x {
  position: absolute; top: 16px; right: 16px; z-index: 3;
  width: 36px; height: 36px; border-radius: 50%; background: rgba(255, 255, 255, .95);
  display: grid; place-items: center; font-size: 19px; color: var(--navy);
  box-shadow: 0 2px 10px rgba(0, 0, 0, .14); transition: transform .25s;
}
.modal__x:hover { transform: rotate(90deg); }
.modal__top { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.modal__gal { background: var(--bg-soft); padding: 24px; }
.modal__main { aspect-ratio: 1; border-radius: 6px; overflow: hidden; margin-bottom: 12px; background: #fff; }
.modal__main img { width: 100%; height: 100%; object-fit: contain; }
.modal__thumbs { display: flex; gap: 9px; flex-wrap: wrap; }
.modal__thumbs img {
  width: 62px; height: 62px; object-fit: cover; border-radius: 4px;
  border: 2px solid transparent; cursor: pointer; transition: border-color .25s;
}
.modal__thumbs img.on { border-color: var(--navy); }
.modal__info { padding: 30px 30px 30px 6px; }
.modal__sku { font-size: 12px; color: var(--gold); letter-spacing: .12em; font-weight: 700; margin-bottom: 9px; }
.modal__cn { font-size: 23px; color: var(--navy); font-weight: 700; margin-bottom: 7px; line-height: 1.4; }
.modal__en { font-size: 13.5px; color: var(--muted); margin-bottom: 18px; }
.modal__desc { font-size: 13.5px; color: var(--body); margin-bottom: 22px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.mrow { display: flex; gap: 12px; padding: 9px 0; font-size: 13.5px; }
.mrow__k { color: var(--muted); min-width: 96px; flex-shrink: 0; }
.mrow__v { color: var(--ink); font-weight: 500; word-break: break-word; }
.modal__sec { margin-top: 26px; }
.modal__sec h4 { font-size: 14px; color: var(--navy); font-weight: 700; margin-bottom: 13px; padding-left: 11px; border-left: 3px solid var(--gold); }
.stab { width: 100%; border-collapse: collapse; font-size: 13px; }
.stab th { background: var(--bg-soft); color: var(--navy); font-weight: 600; text-align: left; padding: 9px 13px; border: 1px solid var(--line); font-size: 12.5px; }
.stab td { padding: 9px 13px; border: 1px solid var(--line); color: var(--body); }
.ulist { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.ulist li { font-size: 13px; color: var(--body); padding-left: 19px; position: relative; }
.ulist li::before { content: ""; position: absolute; left: 0; top: 9px; width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }
.modal__ft {
  padding: 22px 30px 30px; border-top: 1px solid var(--line);
  display: flex; gap: 12px; flex-wrap: wrap; background: var(--bg-soft); border-radius: 0 0 10px 10px;
}

/* ---------- 文件上传 ---------- */
.up { border: 1.5px dashed var(--line); border-radius: 6px; padding: 22px; text-align: center; cursor: pointer; transition: all .25s; background: var(--bg-soft); }
.up:hover { border-color: var(--navy-3); background: #fff; }
.up input { display: none; }
.up b { display: block; font-size: 13.5px; color: var(--navy); margin-bottom: 4px; }
.up span { font-size: 12px; color: var(--muted); }
.files { margin-top: 13px; display: flex; flex-direction: column; gap: 8px; }
.file { display: flex; align-items: center; gap: 11px; padding: 10px 13px; background: #fff; border: 1px solid var(--line); border-radius: 4px; font-size: 13px; }
.file__i { color: var(--navy); font-size: 16px; }
.file__n { flex: 1; color: var(--body); word-break: break-all; }
.file__x { color: var(--muted); font-size: 17px; padding: 0 4px; transition: color .2s; }
.file__x:hover { color: #d0021b; }

/* ---------- 我的询价 ---------- */
.mq { display: flex; flex-direction: column; gap: 14px; }
.mqi { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 20px 22px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.mqi__m { flex: 1; min-width: 200px; }
.mqi__t { font-size: 15px; color: var(--navy); font-weight: 600; margin-bottom: 5px; }
.mqi__d { font-size: 12.5px; color: var(--muted); }
.badge { display: inline-block; font-size: 11.5px; padding: 3px 11px; border-radius: 11px; background: #fff5e0; color: #a3730a; font-weight: 600; }

.empty { text-align: center; padding: 66px 20px; color: var(--muted); }
.empty__i { width: 62px; height: 62px; border-radius: 50%; background: var(--bg-soft); display: grid; place-items: center; margin: 0 auto 17px; color: var(--muted); }
.empty__i svg { width: 27px; height: 27px; }
.empty b { display: block; font-size: 16px; color: var(--navy); margin-bottom: 6px; }

/* ---------- 页脚 ---------- */
.ft { background: var(--navy); color: rgba(255, 255, 255, .68); padding: 62px 0 0; }
.ft__g { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.3fr; gap: 46px; padding-bottom: 44px; }
.ft__logo { display: flex; align-items: center; gap: 12px; margin-bottom: 17px; }
.ft__logo img { height: 46px; opacity: .97; }
.ft__logo b { font-size: 18px; color: #fff; letter-spacing: .05em; }
.ft__ab { font-size: 13.5px; line-height: 1.85; max-width: 330px; }
.ft__co {
  font-size: 11.5px; color: rgba(255, 255, 255, .42); margin-top: 12px;
  letter-spacing: .04em; line-height: 1.7;
}
.ft h4 { font-size: 13.5px; color: #fff; font-weight: 600; margin-bottom: 17px; letter-spacing: .04em; }
.ft__l { display: flex; flex-direction: column; gap: 10px; }
.ft__l a, .ft__l span { font-size: 13.5px; color: rgba(255, 255, 255, .68); transition: color .25s; }
.ft__l a:hover { color: var(--gold-2); }
.ft__c { display: flex; flex-direction: column; gap: 13px; }
.ft__ci { display: flex; gap: 11px; align-items: flex-start; font-size: 13px; }
.ft__ci svg { width: 15px; height: 15px; color: var(--gold); flex-shrink: 0; margin-top: 4px; }
.ft__b {
  border-top: 1px solid rgba(255, 255, 255, .11); padding: 22px 0;
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  font-size: 12.5px; color: rgba(255, 255, 255, .5);
}
.ft__b a { color: rgba(255, 255, 255, .62); }
.ft__b a:hover { color: var(--gold-2); }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .cats, .pgrid, .advs { grid-template-columns: repeat(3, 1fr); }
  .pgrid--side { grid-template-columns: repeat(2, 1fr); }
  .ft__g { grid-template-columns: 1fr 1fr; gap: 34px; }
}
@media (max-width: 900px) {
  .hero__in { grid-template-columns: 1fr; gap: 44px; }
  .hero h1 { font-size: 37px; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 22px 16px; }
  .hero__vis { max-width: 460px; }
  .abt, .ct { grid-template-columns: 1fr; gap: 36px; }
  .flow, .mv { grid-template-columns: 1fr 1fr; }
  .nav { display: none; }
  .nav.mob-open {
    display: flex; flex-direction: column; gap: 0; position: absolute; top: 76px; left: 0; right: 0;
    background: #fff; padding: 8px 28px 16px; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg); align-items: stretch;
  }
  .nav.mob-open a { padding: 13px 0; border-bottom: 1px solid var(--line); }
  .nav.mob-open a:last-child { border-bottom: none; }
  .nav.mob-open a::after { display: none; }
  .burger { display: grid !important; }
  .sec { padding: 66px 0; }
  .sec__ti { font-size: 26px; }
  .modal__top { grid-template-columns: 1fr; }
  .modal__info { padding: 24px; }
  .ulist { grid-template-columns: 1fr; }
  .plist { grid-template-columns: 1fr; }
  .pgrid--side { grid-template-columns: repeat(2, 1fr); }
  .pside { position: static; max-height: none; display: none; }
  .pside.open { display: flex; }
  .pside__toggle {
    display: flex; width: 100%; justify-content: space-between; align-items: center;
    padding: 12px 16px; background: var(--navy); color: #fff;
    border-radius: var(--radius); font-size: 14px; font-weight: 600; margin-bottom: 16px;
  }
  .pside__toggle .pside__arr { border-color: #fff; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 20px; }
  .cats, .pgrid, .advs, .flow, .mv, .f2, .ft__g { grid-template-columns: 1fr; }
  .hero { padding: 62px 0 68px; }
  .hero h1 { font-size: 30px; }
  .phead h1 { font-size: 27px; }
  .ft__b { flex-direction: column; gap: 8px; }
  .hd__in { height: 66px; gap: 14px; }
  .logo img { height: 40px; }
  .nav.mob-open { top: 66px; }
  .hd__act .btn--pri { display: none; }
  .card, .auth__card, .cti { padding: 24px 20px; }
  .sec__hd { margin-bottom: 34px; }
}

.burger { display: none; width: 38px; height: 38px; place-items: center; border-radius: 4px; flex-shrink: 0; }
.burger:hover { background: var(--bg-soft); }
.burger i { display: block; width: 19px; height: 1.8px; background: var(--navy); position: relative; }
.burger i::before, .burger i::after { content: ""; position: absolute; left: 0; width: 19px; height: 1.8px; background: var(--navy); }
.burger i::before { top: -6px; }
.burger i::after { top: 6px; }

.load { text-align: center; padding: 66px 20px; color: var(--muted); font-size: 14px; }
.spin { width: 30px; height: 30px; border: 2.5px solid var(--line); border-top-color: var(--navy); border-radius: 50%; animation: sp .8s linear infinite; margin: 0 auto 14px; }
@keyframes sp { to { transform: rotate(360deg); } }

.toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(18px);
  background: var(--navy); color: #fff; padding: 13px 26px; border-radius: 5px;
  font-size: 13.5px; box-shadow: var(--shadow-lg); opacity: 0;
  transition: all .3s var(--ease); pointer-events: none; z-index: 300;
  max-width: 88vw; text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }