/* =========================================================
   浙江佳怡针织有限公司 · 企业官网
   Design: minimal, editorial, warm paper + deep ink
   ========================================================= */

:root {
  --paper: #fbf8f3;
  --paper-2: #f3ede4;
  --paper-3: #eae2d5;
  --ink: #171412;
  --ink-2: #3e3833;
  --ink-3: #756c64;
  --line: rgba(23, 20, 18, 0.13);
  --line-soft: rgba(23, 20, 18, 0.07);
  --accent: #9a4a32;
  --accent-rgb: 154, 74, 50;
  --accent-soft: #b87a5c;
  --deep: #1e1a17;
  --deep-2: #131010;
  --deep-ink: #f2ede7;
  --white: #fff;

  --sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei UI", "Microsoft YaHei",
    "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC", -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, Arial, sans-serif;
  --serif: Georgia, "Times New Roman", "Songti SC", "STSong", serif;

  --max: 1180px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--ink); color: var(--paper); }

/* ---------- layout ---------- */
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 40px; }
.section { padding: 110px 0; }
.section--tight { padding: 76px 0; }
.section--paper2 { background: var(--paper-2); }
.section--deep { background: var(--deep); color: var(--deep-ink); }
.section--deep .eyebrow { color: var(--accent-soft); }
.section--deep .lead { color: rgba(242, 237, 231, 0.72); }

/* ---------- type ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin: 0 0 22px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.2;
  margin: 0;
}

h1 { font-size: clamp(2.4rem, 4.6vw, 3.9rem); }
h2 { font-size: clamp(1.8rem, 3.1vw, 2.66rem); line-height: 1.28; }
h3 { font-size: 1.32rem; line-height: 1.4; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

.lead {
  font-size: 1.06rem;
  line-height: 1.9;
  color: var(--ink-2);
  max-width: 62ch;
}

.muted { color: var(--ink-3); }
.small { font-size: 0.86rem; line-height: 1.7; }
.num { font-family: var(--serif); font-variant-numeric: tabular-nums; }

.section-head { max-width: 850px; margin-bottom: 62px; }
.section-head h2 { margin-bottom: 20px; }

/* ---------- header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  background: rgba(251, 250, 247, 0.9);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line-soft);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 34px;
  height: 34px;
  border: 1px solid var(--ink);
  display: grid;
  place-items: center;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0;
  flex: none;
}
.brand-name {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
  line-height: 1.2;
}
.brand-sub {
  display: block;
  font-family: var(--sans);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: 3px;
}

.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a {
  position: relative;
  font-size: 0.92rem;
  color: var(--ink-2);
  padding: 6px 0;
  transition: color 0.25s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 0;
  background: var(--ink);
  transition: width 0.35s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--ink); }

.nav-actions { display: flex; align-items: center; gap: 14px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  padding: 12px 24px;
  border-radius: 0;
  transition: background 0.28s, color 0.28s, border-color 0.28s, transform 0.28s;
}
.btn:hover { background: #000; }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn--ghost:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn--light { background: transparent; border-color: rgba(255, 255, 255, 0.35); color: #fff; }
.btn--light:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn--sm { padding: 9px 18px; font-size: 0.82rem; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: 0.45; pointer-events: none; }

/* account chip */
.account { position: relative; }
.account-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: transparent;
  border: 1px solid var(--line);
  padding: 7px 14px 7px 8px;
  color: var(--ink);
  font-size: 0.85rem;
  transition: border-color 0.25s, background 0.25s;
}
.account-btn:hover { border-color: var(--ink); }
.avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--deep);
  color: #fff;
  font-size: 11px;
  display: grid;
  place-items: center;
  flex: none;
  overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.account-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  min-width: 208px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 18px 44px rgba(20, 24, 26, 0.13);
  padding: 8px;
  display: none;
}
.account-menu.open { display: block; }
.account-menu .who {
  padding: 10px 12px 12px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 6px;
}
.account-menu .who strong { display: block; font-size: 0.9rem; font-weight: 600; }
.account-menu .who span { font-size: 0.76rem; color: var(--ink-3); word-break: break-all; }
.account-menu a, .account-menu button {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  padding: 9px 12px;
  font-size: 0.86rem;
  color: var(--ink-2);
  transition: background 0.2s, color 0.2s;
}
.account-menu a:hover, .account-menu button:hover { background: var(--paper-2); color: var(--ink); }

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0;
  place-items: center;
}
.menu-toggle span { display: block; width: 16px; height: 1px; background: var(--ink); position: relative; }
.menu-toggle span::before, .menu-toggle span::after {
  content: ""; position: absolute; left: 0; width: 16px; height: 1px; background: var(--ink);
}
.menu-toggle span::before { top: -5px; }
.menu-toggle span::after { top: 5px; }

/* ---------- real photo layer ---------- */
/* 放入 assets 下的同名图片即可自动替换纹理占位；图片缺失时自动回退到纹理 */
.hero-visual img,
.prod-visual img,
.pv img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-visual img { z-index: 1; }
.prod-visual img,
.pv img { z-index: 3; }

.hero-visual .veil { z-index: 2; }
.hero-visual .stamp,
.hero-visual .caption { z-index: 3; }

/* ---------- hero ---------- */
.hero { padding: 178px 0 96px; position: relative; overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: 72px;
  align-items: center;
}
.hero h1 { margin-bottom: 30px; }
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.hero .lead { margin-bottom: 36px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-visual {
  position: relative;
  aspect-ratio: 4 / 4.5;
  background: var(--deep);
  color: var(--deep-ink);
  overflow: hidden;
  isolation: isolate;
}
.knit {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.085) 0 1px, transparent 1px 9px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.055) 0 1px, transparent 1px 17px);
  opacity: 1;
}
.hero-visual .veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(78% 62% at 84% 6%, rgba(var(--accent-rgb), 0.72), transparent 62%),
    radial-gradient(120% 80% at 10% 100%, rgba(var(--accent-rgb), 0.32), transparent 60%),
    linear-gradient(158deg, rgba(255, 255, 255, 0.09) 0%, transparent 42%),
    linear-gradient(180deg, transparent 26%, rgba(12, 8, 6, 0.92) 100%);
  z-index: 2;
}
.hero-visual .stamp {
  position: absolute;
  top: 30px;
  left: 30px;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}
.hero-visual .caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 34px;
}
.hero-visual .caption .k {
  font-family: var(--serif);
  font-size: 2.1rem;
  line-height: 1.15;
  margin-bottom: 8px;
}
.hero-visual .caption .k span {
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: 0;
}.hero-visual .caption p {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

/* ---------- stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat { padding: 34px 26px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat .v {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 2.6vw, 2.35rem);
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat .v small { font-family: var(--sans); font-weight: 500; font-size: 0.5em; margin-left: 4px; letter-spacing: 0; }
.stat .l {
  display: block;
  margin-top: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

/* ---------- capability grid ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.cap {
  background: var(--paper);
  padding: 42px 34px 46px;
  transition: background 0.35s;
}
.cap:hover { background: var(--white); }
.cap .idx {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.76rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  display: block;
  margin-bottom: 26px;
}
.cap h3 { margin-bottom: 14px; }
.cap p { font-size: 0.93rem; color: var(--ink-2); }

/* ---------- product cards ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.prod {
  border: 1px solid var(--line);
  background: var(--white);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.prod:hover { transform: translateY(-3px); box-shadow: 0 22px 48px rgba(20, 24, 26, 0.09); }

/* ---------- product visuals ---------- */
.prod-visual {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--paper-3);
}

.pv { position: relative; overflow: hidden; }
.pv-idx {
  position: absolute;
  top: 22px;
  right: 26px;
  font-family: var(--serif);
  font-size: 0.76rem;
  letter-spacing: 0.22em;
}
.pv-en {
  position: absolute;
  left: 28px;
  bottom: 24px;
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.3vw, 2rem);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  line-height: 1;
}
.prod-visual .knit { opacity: 0.5; }
.prod-visual .pv-en,
.prod-visual .pv-idx { z-index: 2; }
.prod-visual .pv-en {
  font-size: 1.28rem;
  letter-spacing: 0.24em;
  bottom: 22px;
  left: 24px;
}
.prod-visual .pv-idx { top: 20px; right: 22px; }
.prod-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.42), transparent 55%);
}
.prod-visual .tag {
  position: absolute;
  left: 18px;
  bottom: 16px;
  z-index: 2;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.9);
  mix-blend-mode: difference;
}
.prod-body { padding: 30px 32px 34px; }
.prod-body h3 { margin-bottom: 12px; }
.prod-body p { font-size: 0.92rem; color: var(--ink-2); margin-bottom: 18px; }
.spec-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-soft); }
.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  font-size: 0.82rem;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ink-2);
}
.spec-list li span:first-child { color: var(--ink-3); }
.spec-list li:last-child { border-bottom: 0; }

/* ---------- cert strip ---------- */
.cert-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.14);
}
.cert {
  background: var(--deep);
  padding: 34px 28px;
  transition: background 0.35s;
}
.cert:hover { background: var(--deep-2); }
.cert .mark {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.06rem;
  letter-spacing: 0.02em;
  margin-bottom: 10px;
}
.cert p { font-size: 0.8rem; color: rgba(242, 237, 231, 0.6); margin: 0; }

/* ---------- market list ---------- */
.market-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.market-list li {
  border: 1px solid var(--line);
  padding: 7px 15px;
  font-size: 0.82rem;
  color: var(--ink-2);
  transition: border-color 0.25s, color 0.25s;
}
.market-list li:hover { border-color: var(--ink); color: var(--ink); }

/* ---------- CTA ---------- */
.cta-band {
  display: grid;
  grid-template-columns: 1.4fr auto;
  align-items: center;
  gap: 40px;
  padding: 66px 56px;
  background: var(--paper-2);
  border: 1px solid var(--line);
}
.cta-band h2 { margin-bottom: 14px; }

/* ---------- page hero ---------- */
.page-hero {
  padding: 168px 0 74px;
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { margin-bottom: 24px; }
.page-hero .lead { max-width: 58ch; }
.crumb {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin-bottom: 26px;
}
.crumb a:hover { color: var(--ink); }

/* ---------- two column ---------- */
.split {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 80px;
  align-items: start;
}
.split--even { grid-template-columns: 1fr 1fr; gap: 64px; }

/* ---------- timeline ---------- */
.steps { border-top: 1px solid var(--line); }
.step {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 30px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}
.step .n {
  font-family: var(--serif);
  font-size: 0.86rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  padding-top: 5px;
}
.step h3 { margin-bottom: 8px; }
.step p { font-size: 0.93rem; color: var(--ink-2); margin: 0; }

/* ---------- flow ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  border-right: 0;
}
.flow-item {
  padding: 26px 20px 30px;
  border-right: 1px solid var(--line);
  position: relative;
}
.flow-item .n {
  font-family: var(--serif);
  font-size: 0.74rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  display: block;
  margin-bottom: 14px;
}
.flow-item h4 { font-size: 0.96rem; margin-bottom: 8px; }
.flow-item p { font-size: 0.78rem; color: var(--ink-3); margin: 0; line-height: 1.6; }

/* ---------- contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 72px;
  align-items: start;
}
.info-block { border-top: 1px solid var(--line); padding: 26px 0; }
.info-block:first-of-type { border-top: 0; padding-top: 0; }
.info-block .k {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.info-block .v { font-family: var(--sans); font-weight: 600; font-size: 1.02rem; line-height: 1.6; letter-spacing: 0.01em; }
.info-block .v span { display: block; font-family: var(--sans); font-size: 0.92rem; color: var(--ink-2); }

.form-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 42px 44px 46px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 0.79rem;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  margin-bottom: 8px;
}
.field label .req { color: var(--accent); }
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--ink);
  border-radius: 0;
  transition: border-color 0.25s, background 0.25s;
  -webkit-appearance: none;
  appearance: none;
}
.field select {
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-3) 50%),
    linear-gradient(135deg, var(--ink-3) 50%, transparent 50%);
  background-position: calc(100% - 17px) 50%, calc(100% - 12px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.field textarea { min-height: 118px; resize: vertical; line-height: 1.7; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ink);
  background: var(--white);
}
.field .hint { font-size: 0.76rem; color: var(--ink-3); margin-top: 7px; }
.field .err { font-size: 0.78rem; color: #a3372b; margin-top: 7px; display: none; }
.field.has-error input, .field.has-error textarea, .field.has-error select { border-color: #c0564a; }
.field.has-error .err { display: block; }

.field label.upload {
  border: 1px dashed var(--line);
  background: var(--paper);
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  font-size: 0.86rem;
  letter-spacing: normal;
  color: var(--ink);
  transition: border-color 0.25s, background 0.25s;
  cursor: pointer;
}
.upload:hover { border-color: var(--ink-3); background: var(--white); }
.upload.has-file { border-style: solid; border-color: var(--accent); }
.upload .u-t { font-size: 0.86rem; }
.upload .u-s { font-size: 0.76rem; color: var(--ink-3); margin-top: 3px; }
.upload input[type="file"] { display: none; }
.field input[type="file"] { display: none; }

.form-note {
  font-size: 0.78rem;
  color: var(--ink-3);
  margin-top: 18px;
  line-height: 1.7;
}
.form-note a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.form-note a:hover { opacity: .8; }

.alert {
  padding: 13px 16px;
  font-size: 0.86rem;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  background: var(--paper-2);
  display: none;
}
.alert.show { display: block; }
.alert.ok { border-color: rgba(38, 92, 60, 0.35); background: rgba(38, 92, 60, 0.07); color: #26553a; }
.alert.bad { border-color: rgba(163, 55, 43, 0.32); background: rgba(163, 55, 43, 0.06); color: #8d3428; }

/* my inquiries */
.my-list { margin-top: 26px; }
.my-item {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 22px 24px;
  margin-bottom: 12px;
}
.my-item .top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 10px;
}
.my-item .top strong { font-size: 0.94rem; font-weight: 600; }
.my-item .top time { font-size: 0.76rem; color: var(--ink-3); white-space: nowrap; }
.my-item .msg { font-size: 0.88rem; color: var(--ink-2); margin: 0 0 12px; white-space: pre-wrap; }
.my-item .meta { font-size: 0.76rem; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.badge {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  padding: 3px 9px;
  border: 1px solid var(--line);
  color: var(--ink-2);
}
.badge.new { border-color: rgba(150, 104, 60, 0.5); color: var(--accent); }

.empty {
  border: 1px dashed var(--line);
  padding: 34px 24px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--ink-3);
}

/* ---------- login modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal.open { display: flex; }
.modal-veil {
  position: absolute;
  inset: 0;
  background: rgba(21, 15, 12, 0.55);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.modal-card {
  position: relative;
  width: 100%;
  max-width: 424px;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 34px 80px rgba(21, 14, 10, 0.3);
  padding: 38px 38px 34px;
  animation: rise 0.34s var(--ease);
}
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 30px;
  height: 30px;
  border: 0;
  background: transparent;
  font-size: 20px;
  line-height: 1;
  color: var(--ink-3);
}
.modal-close:hover { color: var(--ink); }
.modal-card h3 { font-size: 1.42rem; margin-bottom: 8px; }
.modal-card .sub { font-size: 0.86rem; color: var(--ink-3); margin-bottom: 26px; }

.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.tab {
  flex: 1;
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  padding: 0 0 12px;
  font-size: 0.88rem;
  color: var(--ink-3);
  margin-bottom: -1px;
  transition: color 0.25s, border-color 0.25s;
}
.tab.active { color: var(--ink); border-bottom-color: var(--ink); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.code-row { display: flex; gap: 10px; }
.code-row input { flex: 1; }
.code-btn {
  flex: none;
  min-width: 112px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-size: 0.82rem;
  padding: 0 12px;
  transition: background 0.25s, color 0.25s;
}
.code-btn:hover { background: var(--ink); color: var(--paper); }
.code-btn[disabled] { opacity: 0.45; pointer-events: none; }

.wechat-box { text-align: center; padding: 6px 0 2px; }
.wechat-box .qrph {
  width: 148px;
  height: 148px;
  margin: 0 auto 22px;
  border: 1px solid var(--line);
  background: var(--white);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}
.wechat-box .qrph svg { width: 84px; height: 84px; opacity: 0.85; }
.wechat-box p { font-size: 0.84rem; color: var(--ink-3); margin-bottom: 18px; }

.modal-foot { margin-top: 20px; font-size: 0.74rem; color: var(--ink-3); line-height: 1.65; }
.divider {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink-3);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  margin: 22px 0;
}
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 38px;
  transform: translate(-50%, 14px);
  background: var(--ink);
  color: var(--paper);
  padding: 12px 22px;
  font-size: 0.86rem;
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s var(--ease);
  max-width: calc(100vw - 48px);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- footer ---------- */
.site-footer {
  background: var(--deep-2);
  color: rgba(242, 237, 231, 0.78);
  padding: 76px 0 34px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.site-footer .brand-name { color: #fff; }
.site-footer .brand-mark { border-color: rgba(255, 255, 255, 0.4); color: #fff; }
.site-footer .brand-sub { color: rgba(255, 255, 255, 0.42); }
.footer-about { font-size: 0.86rem; line-height: 1.85; color: rgba(242, 237, 231, 0.55); margin-top: 20px; max-width: 30ch; }
.footer-col h4 {
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 18px;
  font-weight: 600;
}
.footer-col a, .footer-col p {
  display: block;
  font-size: 0.87rem;
  color: rgba(242, 237, 231, 0.75);
  margin: 0 0 11px;
  line-height: 1.6;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 26px;
  font-size: 0.76rem;
  color: rgba(255, 255, 255, 0.38);
  flex-wrap: wrap;
}


/* ---------- language switch ---------- */
.nav-links a.lang-switch {
  color: var(--ink-3);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  padding-left: 14px;
  margin-left: 12px;
  border-left: 1px solid var(--line);
}
.nav-links a.lang-switch::after { display: none; }
.nav-links a.lang-switch:hover { color: var(--ink); }

/* ---------- fact sheet ---------- */
.fact-sheet {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 40px;
  padding: 34px 0 38px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.fact-sheet .fs-k {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  padding-top: 4px;
}
.fact-sheet p { font-size: 0.96rem; line-height: 1.95; color: var(--ink-2); margin: 0; }
.fact-sheet strong { color: var(--ink); font-weight: 600; }

/* ---------- terms ---------- */
.terms {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.term { background: var(--paper); padding: 30px 26px 34px; }
.term .t-k {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 600;
}
.term .t-v { font-size: 1.55rem; font-weight: 600; line-height: 1.2; margin-bottom: 10px; letter-spacing: -0.01em; }
.term .t-v small { font-size: 0.55em; font-weight: 500; margin-left: 3px; letter-spacing: 0; }
.term p { font-size: 0.81rem; color: var(--ink-3); margin: 0; line-height: 1.7; }

/* ---------- faq ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 22px 44px 22px 0;
  position: relative;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  transition: color 0.25s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.15rem;
  color: var(--accent);
}
.faq details[open] summary::after { content: "\2013"; }
.faq summary:hover { color: var(--accent); }
.faq .a { padding: 0 44px 26px 0; font-size: 0.93rem; line-height: 1.9; color: var(--ink-2); }
.faq .a p { margin: 0 0 0.75em; }
.faq .a p:last-child { margin: 0; }


/* ---------- English typography ---------- */
html.lang-en h1,
html.lang-en h2,
html.lang-en h3,
html.lang-en h4 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.12;
}
html.lang-en h3 { letter-spacing: -0.01em; line-height: 1.25; }
html.lang-en .brand-name,
html.lang-en .cert .mark,
html.lang-en .term .t-v,
html.lang-en .info-block .v {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: 0.005em;
}
html.lang-en .eyebrow { letter-spacing: 0.24em; }
html.lang-en .stat .v small,
html.lang-en .hero-visual .caption .k span {
  font-family: var(--serif);
  font-weight: 400;
}

html.lang-en .lead { font-size: 1.06rem; line-height: 1.85; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.85s var(--ease), transform 0.85s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .hero-grid { gap: 44px; }
  .split { grid-template-columns: 1fr; gap: 44px; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow-item:nth-child(3n) { border-right: 1px solid var(--line); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .wrap { padding: 0 22px; }
  .section { padding: 74px 0; }
  .hero { padding: 138px 0 66px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { aspect-ratio: 16 / 11; }
  .page-hero { padding: 132px 0 54px; }

  .nav-links {
    position: fixed;
    inset: 78px 0 auto 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 22px 18px;
    display: none;
    box-shadow: 0 18px 30px rgba(20, 24, 26, 0.08);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 0; border-bottom: 1px solid var(--line-soft); }
  .nav-links a::after { display: none; }
  .menu-toggle { display: grid; }

  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { border-bottom: 1px solid var(--line); }
  .stat:nth-child(2n) { border-right: 0; }
  .cap-grid { grid-template-columns: 1fr; }
  .prod-grid { grid-template-columns: 1fr; }
  .cert-row { grid-template-columns: 1fr 1fr; }
  .cta-band { grid-template-columns: 1fr; padding: 42px 28px; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow-item:nth-child(3n) { border-right: 1px solid var(--line); }
  .form-card { padding: 30px 22px 34px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .step { grid-template-columns: 56px 1fr; gap: 16px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .modal-card { padding: 30px 22px 26px; }
}

@media (max-width: 560px) {
  .stats { grid-template-columns: 1fr; }
  .stat { border-right: 0; }
  .flow { grid-template-columns: 1fr; }
  .flow-item { border-right: 1px solid var(--line); }
  .cert-row { grid-template-columns: 1fr; }
  .nav-actions .btn--ghost { display: none; }
  .brand-sub { display: none; }
  .brand-name { font-size: 0.96rem; letter-spacing: 0.02em; }
  .nav { gap: 10px; height: 70px; }
  .nav-actions { gap: 8px; }
  .nav-actions .btn { padding: 9px 14px; font-size: 0.8rem; }
  .nav-links { inset: 70px 0 auto 0; }
  .hero { padding-top: 118px; }
  .page-hero { padding-top: 112px; }
  h2 { font-size: 1.6rem; }
}

@media (max-width: 1080px) {
  .terms { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .fact-sheet { grid-template-columns: 1fr; gap: 16px; padding: 28px 0 30px; }
  .nav-links a.lang-switch { border-left: 0; margin-left: 0; padding-left: 0; }
}
@media (max-width: 560px) {
  .terms { grid-template-columns: 1fr; }
}