/* =========================================================
   GRIPWELL — Custom Grip Socks Manufacturer
   Design system + components
   ========================================================= */

:root {
  /* Brand — 辅色(30%) 炭黑 / 高级暗灰 */
  --navy-900: #1C1917;
  --navy-800: #1C1917;
  --navy-700: #292524;
  --navy-600: #44403C;
  /* 点缀色 / CTA (10%) 鼠尾草绿 */
  --accent: #16A34A;
  --accent-dark: #15803D;
  --accent-soft: #EDF7F0;

  /* Neutrals — 主色(60%) 暖白 / 米白 + 大地色浅灰 */
  --ink: #1C1917;
  --ink-2: #57534E;
  --ink-3: #7A7269;
  --line: #E7E5E4;
  --line-2: #F1EFED;
  --bg: #FFFFFF;
  --bg-soft: #FAFAF9;
  --bg-soft-2: #F2EFEC;

  /* Semantic */
  --ok: #16A34A;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(28, 25, 23, .05), 0 2px 8px rgba(28, 25, 23, .05);
  --shadow: 0 4px 16px rgba(28, 25, 23, .07);
  --shadow-lg: 0 18px 48px rgba(28, 25, 23, .12);

  --container: 1200px;
  --header-h: 74px;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "Open Sans", "Roboto", "Lato", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.2; font-weight: 700; letter-spacing: -.015em; font-family: var(--font); }
h1 { font-size: clamp(36px, 4.2vw, 48px); }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- Typography helpers ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent);
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--accent); border-radius: 2px; }

.section-title { font-size: clamp(28px, 3.4vw, 40px); color: var(--navy-900); }
.section-sub { font-size: 17px; color: var(--ink-2); max-width: 680px; }
.section-head { margin-bottom: 52px; }
.section-head.center { text-align: center; }
.section-head.center .section-sub { margin-left: auto; margin-right: auto; }
.section-head.center .eyebrow { justify-content: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 24px; border-radius: var(--radius-pill);
  font-weight: 650; font-size: 15px; border: 1.5px solid transparent;
  cursor: pointer; transition: .18s ease; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 18px rgba(22,163,74,.26); }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-1px); box-shadow: 0 10px 24px rgba(22,163,74,.32); }
.btn-outline { border-color: var(--navy-600); color: var(--ink); background: transparent; }
.btn-outline:hover { background: var(--bg-soft-2); border-color: var(--ink); }
.btn-navy { background: var(--navy-800); color: #fff; }
.btn-navy:hover { background: var(--navy-700); transform: translateY(-1px); }
.btn-ghost { border-color: var(--line); color: var(--navy-800); background: #fff; }
.btn-ghost:hover { border-color: var(--navy-600); color: var(--navy-700); }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line-2);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--navy-900); letter-spacing: -.02em; }
.brand-logo { height: 42px; width: auto; display: block; }
.footer-brand .brand-logo { height: 46px; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-900));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 15px;
  box-shadow: 0 4px 12px rgba(11,42,74,.25);
}
.brand small { display: block; font-size: 10.5px; font-weight: 600; letter-spacing: .08em; color: var(--ink-3); text-transform: uppercase; margin-top: -4px; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav a {
  padding: 9px 14px; border-radius: var(--radius-pill); font-size: 15px; font-weight: 550;
  color: var(--ink-2); transition: .15s;
}
.nav a:hover { color: var(--navy-800); background: var(--bg-soft); }
.nav a.active { color: var(--navy-800); background: var(--bg-soft-2); font-weight: 650; }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-phone { font-size: 14px; font-weight: 600; color: var(--navy-800); display: flex; align-items: center; gap: 7px; }

.nav-toggle {
  display: none; margin-left: auto; width: 42px; height: 42px; border-radius: 10px;
  border: 1px solid var(--line); background: #fff; cursor: pointer;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--navy-800); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1000px 460px at 80% 8%, rgba(22,163,74,.10), transparent 62%),
    linear-gradient(180deg, #FAFAF9 0%, #F4F2EF 100%);
  color: var(--ink); padding: 84px 0 0;
}
.hero::after {
  content: ""; position: absolute; inset: auto 0 -1px 0; height: 90px;
  background: linear-gradient(180deg, rgba(250,250,249,0), #fff);
}
.hero-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 64px; align-items: center; padding-bottom: 88px; }
.hero-grid > .hero-visual { order: -1; }   /* 首屏左图右文 */
.hero h1 { font-size: clamp(36px, 4.2vw, 48px); font-weight: 800; letter-spacing: -.03em; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-lead { font-size: 18px; line-height: 1.7; color: var(--ink-2); max-width: 580px; margin: 18px 0 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-points { display: flex; gap: 26px; margin-top: 38px; flex-wrap: wrap; }
.hero-points div { font-size: 14.5px; color: var(--ink-2); display: flex; align-items: center; gap: 8px; }
.hero-points svg { flex: none; }

.hero-visual {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background: #fff;
  border: 1px solid var(--line); box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3; display: grid; place-items: center; padding: 18px;
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; border-radius: 14px; }
/* ---------- Stat bar ---------- */
.statbar { background: #fff; border-bottom: 1px solid var(--line-2); position: relative; z-index: 2; }
.statbar-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; padding: 30px 0; }
.stat { text-align: center; border-left: 1px solid var(--line-2); padding: 4px 12px; }
.stat:first-child { border-left: none; }
.stat b { display: block; font-size: 30px; font-weight: 800; color: var(--navy-800); letter-spacing: -.02em; }
.stat span { font-size: 13.5px; color: var(--ink-3); }

/* ---------- Sections ---------- */
section { padding: 96px 0; }
.section-soft { background: var(--bg-soft); }
.section-soft-2 { background: var(--bg-soft-2); }

/* ---------- Cards ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: .22s ease; display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #d5e0ec; }
.card-media { background: var(--bg-soft); aspect-ratio: 4/3; display: grid; place-items: center; overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.card:hover .card-media img { transform: scale(1.045); }
.card-body { padding: 22px; }
.card-body h3 { font-size: 18px; color: var(--navy-900); margin-bottom: 6px; }
.card-body p { font-size: 14.5px; color: var(--ink-2); margin-bottom: 14px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: 12px; font-weight: 600; color: var(--navy-700);
  background: var(--bg-soft-2); border-radius: var(--radius-pill); padding: 4px 11px;
}
.card-link { margin-top: auto; font-size: 14.5px; font-weight: 650; color: var(--accent); display: inline-flex; gap: 6px; align-items: center; }
.card-link:hover { gap: 10px; }

/* ---------- Feature list ---------- */
.feature {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; height: 100%;
}
.feature .ico {
  width: 46px; height: 46px; border-radius: 12px; background: var(--accent-soft);
  display: grid; place-items: center; margin-bottom: 16px; color: var(--accent);
}
.feature h3 { font-size: 17.5px; color: var(--navy-900); }
.feature p { font-size: 14.5px; color: var(--ink-2); margin: 0; }

/* ---------- Process ---------- */
.process { counter-reset: step; display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.step { position: relative; padding-top: 34px; }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; top: 0; left: 0; font-size: 13px; font-weight: 800; color: var(--accent);
  letter-spacing: .06em;
}
.step::after {
  content: ""; position: absolute; top: 6px; left: 34px; right: 12px; height: 1px; background: var(--line);
}
.step:last-child::after { display: none; }
.step h4 { font-size: 15.5px; color: var(--navy-900); margin: 8px 0 6px; }
.step p { font-size: 13.5px; color: var(--ink-2); margin: 0; }

/* ---------- Spec table ---------- */
.spec-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec-table th, .spec-table td { padding: 14px 18px; text-align: left; font-size: 14.5px; border-bottom: 1px solid var(--line-2); }
.spec-table th { background: var(--bg-soft); color: var(--navy-800); font-weight: 650; width: 32%; }
.spec-table tr:last-child td, .spec-table tr:last-child th { border-bottom: none; }
.spec-table td { color: var(--ink-2); }

/* ---------- Certifications ---------- */
.certs { display: flex; flex-wrap: wrap; gap: 14px; }
.cert {
  display: flex; align-items: center; gap: 12px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 20px; min-width: 210px;
}
.cert .ico { width: 34px; height: 34px; border-radius: 9px; background: var(--bg-soft-2); display: grid; place-items: center; color: var(--navy-700); }
.cert b { display: block; font-size: 14.5px; color: var(--navy-900); }
.cert span { font-size: 12.5px; color: var(--ink-3); }

/* ---------- FAQ ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; margin-bottom: 12px; overflow: hidden; }
.faq-q { width: 100%; text-align: left; background: none; border: 0; cursor: pointer; padding: 18px 22px; font: inherit; font-weight: 650; font-size: 16px; color: var(--navy-900); display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-q span.chev { transition: transform .2s; color: var(--accent); flex: none; }
.faq-item.open .faq-q span.chev { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 22px 20px; font-size: 15px; color: var(--ink-2); }
.faq-item.open .faq-a { display: block; }

/* ---------- Quote form ---------- */
.quote-wrap { display: grid; grid-template-columns: 1fr .85fr; gap: 40px; align-items: start; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 650; color: var(--navy-800); }
.field label .req { color: var(--accent); }
.field input, .field select, .field textarea {
  font: inherit; font-size: 15px; color: var(--ink);
  padding: 11px 14px; border: 1.5px solid var(--line); border-radius: 10px; background: #fff;
  transition: .15s; width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--navy-600); box-shadow: 0 0 0 3px rgba(26,80,136,.12);
}
.field textarea { min-height: 108px; resize: vertical; }
.field .hint { font-size: 12.5px; color: var(--ink-3); }
.field.error input, .field.error select, .field.error textarea { border-color: #d64545; }
.err-msg { color: #d64545; font-size: 12.5px; min-height: 1px; }

.form-note { font-size: 12.5px; color: var(--ink-3); margin-top: 14px; }
.form-status { margin-top: 16px; padding: 14px 16px; border-radius: 11px; font-size: 14.5px; display: none; }
.form-status.ok { display: block; background: #e8f7f1; color: var(--ok); border: 1px solid #bfe6d8; }
.form-status.err { display: block; background: #fdecec; color: #c0392b; border: 1px solid #f6c9c9; }

.quote-side .info-block { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin-bottom: 16px; }
.quote-side h3 { font-size: 17px; color: var(--navy-900); }
.contact-row { display: flex; gap: 12px; align-items: flex-start; padding: 10px 0; border-top: 1px dashed var(--line); }
.contact-row:first-of-type { border-top: none; }
.contact-row .ico { width: 34px; height: 34px; border-radius: 9px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; flex: none; }
.contact-row b { display: block; font-size: 14.5px; color: var(--navy-900); }
.contact-row span { font-size: 13.5px; color: var(--ink-2); }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, #1C1917, #292524 60%, #15803D);
  color: #fff; border-radius: var(--radius-lg); padding: 52px 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.cta-band h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,.82); margin: 0; font-size: 16px; }

/* ---------- Testimonials ---------- */
.quote-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; height: 100%; }
.quote-card .stars { color: #f5a623; letter-spacing: 2px; font-size: 14px; margin-bottom: 12px; }
.quote-card p { font-size: 15px; color: var(--ink-2); }
.quote-card .who { display: flex; align-items: center; gap: 12px; margin-top: 16px; }
.quote-card .who .av { width: 40px; height: 40px; border-radius: 50%; background: var(--bg-soft-2); display: grid; place-items: center; font-weight: 700; color: var(--navy-700); }
.quote-card .who b { font-size: 14.5px; color: var(--navy-900); display: block; }
.quote-card .who span { font-size: 12.5px; color: var(--ink-3); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-900); color: rgba(255,255,255,.72); padding: 62px 0 26px; font-size: 14.5px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 36px; }
.site-footer h4 { color: #fff; font-size: 15.5px; margin-bottom: 16px; }
.site-footer a { color: rgba(255,255,255,.72); }
.site-footer a:hover { color: #fff; }
.site-footer ul li { margin-bottom: 9px; }
.brand.footer-brand { color: #fff; margin-bottom: 14px; }
.brand.footer-brand .brand-mark { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 20px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13.5px; color: rgba(255,255,255,.55); }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: linear-gradient(180deg, #FAFAF9 0%, #F3F1EE 100%);
  border-bottom: 1px solid var(--line-2);
  color: var(--ink); padding: 64px 0 60px;
}
.page-hero h1 { font-size: clamp(32px, 3.6vw, 44px); }
.page-hero p { color: var(--ink-2); font-size: 17px; max-width: 660px; margin: 12px 0 0; }
.breadcrumb { font-size: 13.5px; color: var(--ink-3); margin-bottom: 14px; }
.breadcrumb a:hover { color: var(--accent); }

/* ---------- Misc ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.check-list li { position: relative; padding-left: 30px; margin-bottom: 12px; font-size: 15px; color: var(--ink-2); }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 6px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2316A34A'%3E%3Cpath d='M7.6 14.6 3.9 11l1.4-1.4 2.3 2.3 7-7L16 6.3z'/%3E%3C/svg%3E") center/13px no-repeat;
}
.media-round { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); background: var(--bg-soft); aspect-ratio: 4/3; display: grid; place-items: center; }
.media-round img { width: 100%; height: 100%; object-fit: cover; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Product page (B2B buyer layout) ---------- */
.pf-hero { padding: 54px 0 46px; }
.pf-hero-grid { display: grid; grid-template-columns: .98fr 1.02fr; gap: 56px; align-items: center; }
.pf-hero-grid > .pf-figure { order: -1; }   /* 首屏左图右文 */
.pf-hero h1 { margin-bottom: 14px; }
.pf-lead { font-size: 17.5px; line-height: 1.7; color: var(--ink-2); max-width: 640px; }
.pf-pills { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.pf-pill {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; font-weight: 650; color: var(--ink);
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-pill); padding: 7px 14px;
}
.pf-pill b { color: var(--accent); }
.pf-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.pf-figure { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.18); aspect-ratio: 4/3; display: grid; place-items: center; padding: 14px; }
.pf-figure img { width: 100%; height: 100%; object-fit: cover; border-radius: 14px; display: block; }

.toc-bar { position: sticky; top: var(--header-h); z-index: 40; background: #fff; border-bottom: 1px solid var(--line-2); box-shadow: var(--shadow-sm); }
.toc-inner { display: flex; gap: 26px; padding: 13px 0; overflow-x: auto; scrollbar-width: none; }
.toc-inner::-webkit-scrollbar { display: none; }
.toc-inner a { font-size: 14px; font-weight: 600; color: var(--ink-2); white-space: nowrap; display: inline-flex; align-items: center; gap: 7px; }
.toc-inner a:hover, .toc-inner a.active { color: var(--accent); }
.toc-inner a::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--line); }
.toc-inner a:hover::before, .toc-inner a.active::before { background: var(--accent); }

.pf-block { padding: 62px 0; }
.pf-layout { display: grid; grid-template-columns: 1fr 336px; gap: 46px; align-items: start; }
.pf-main > * + * { margin-top: 58px; }
.pf-h { scroll-margin-top: calc(var(--header-h) + 58px); }
.pf-h h2 { font-size: clamp(23px, 2.4vw, 30px); color: var(--navy-900); margin-bottom: 10px; }
.pf-h .section-sub { margin-bottom: 24px; }
.pf-h p { font-size: 15.5px; }

.pf-aside { position: sticky; top: calc(var(--header-h) + 58px); }
.buy-box { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow); }
.buy-box h3 { font-size: 19px; color: var(--navy-900); margin-bottom: 4px; }
.buy-box .bb-sub { font-size: 13.5px; color: var(--ink-3); margin-bottom: 16px; }
.buy-box .kv { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.buy-box .kv span { color: var(--ink-3); }
.buy-box .kv b { color: var(--navy-900); font-weight: 650; text-align: right; }
.buy-box .bb-actions { display: grid; gap: 9px; margin-top: 18px; }
.buy-box .bb-actions .btn { width: 100%; }
.buy-box .bb-contact { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 13.5px; color: var(--ink-3); line-height: 1.7; }
.buy-box .bb-contact a { color: var(--navy-700); font-weight: 650; }
.buy-box .bb-badge { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ok); background: rgba(20,136,106,.1); border-radius: var(--radius-pill); padding: 4px 10px; margin-bottom: 12px; }

.data-table { width: 100%; border-collapse: collapse; font-size: 14.5px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.data-table th { background: var(--navy-800); color: #fff; font-weight: 650; font-size: 13.5px; padding: 12px 16px; text-align: left; }
.data-table td { padding: 12px 16px; border-bottom: 1px solid var(--line-2); color: var(--ink-2); }
.data-table tbody tr:nth-child(even) td { background: var(--bg-soft); }
.data-table tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; }

.app-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.app-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.app-item b { display: block; font-size: 14.5px; color: var(--navy-900); margin-bottom: 4px; }
.app-item span { font-size: 13.5px; color: var(--ink-3); }

.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: fl; }
.flow-step { counter-increment: fl; position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 18px 18px; }
.flow-step::before {
  content: counter(fl); position: absolute; top: 12px; left: 18px;
  width: 22px; height: 22px; border-radius: 50%; background: var(--accent-soft); color: var(--accent);
  font-size: 12px; font-weight: 800; display: grid; place-items: center;
}
.flow-step b { display: block; font-size: 15px; color: var(--navy-900); margin-bottom: 5px; }
.flow-step span { font-size: 13.5px; color: var(--ink-3); }

.doc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.doc-item { display: flex; gap: 12px; align-items: flex-start; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.doc-item .ck { flex: none; width: 20px; height: 20px; border-radius: 50%; background: var(--accent-soft); display: grid; place-items: center; margin-top: 1px; }
.doc-item .ck svg { width: 12px; height: 12px; }
.doc-item b { display: block; font-size: 14.5px; color: var(--navy-900); }
.doc-item span { font-size: 13.5px; color: var(--ink-3); }

.note-box { background: var(--bg-soft-2); border-left: 3px solid var(--navy-600); border-radius: 8px; padding: 14px 18px; font-size: 13.8px; color: var(--ink-2); margin-top: 18px; }
.pf-terms { font-size: 13px; color: var(--ink-3); margin-top: 12px; }

.rel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .process { grid-template-columns: repeat(3, 1fr); gap: 24px 16px; }
  .step::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .pf-layout { grid-template-columns: 1fr; gap: 34px; }
  .pf-aside { position: static; }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .hero-grid, .split, .quote-wrap, .pf-hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero-grid > .hero-visual, .pf-hero-grid > .pf-figure { order: 0; }  /* 移动端文字优先 */
  .hero { padding-top: 60px; }
  .hero-visual { order: -1; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .statbar-inner { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .stat { border-left: none; }
  .nav, .header-phone { display: none; }
  .nav-toggle { display: flex; }
  .site-header.nav-open .nav {
    display: flex; flex-direction: column; align-items: stretch; gap: 2px;
    position: absolute; top: var(--header-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 12px 24px 20px;
  }
  .site-header.nav-open .header-cta { display: flex; }
}
@media (max-width: 620px) {
  .pf-hero { padding: 40px 0 34px; }
  .app-grid, .doc-grid, .rel-grid { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .toc-inner { gap: 18px; }
  .brand-logo { height: 30px; }
  .footer-brand .brand-logo { height: 36px; }
  section { padding: 56px 0; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 24px; }
  .cta-band { padding: 34px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .spec-table th { width: 42%; }
}