/* ==========================================================
   Flopeir · minimal B2B site
   留白 / 细线 / 无阴影，紧凑版
   ========================================================== */

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

:root {
  --text: #1f1f1f;
  --text-light: #6b6b6b;
  --white: #ffffff;
  --bg-light: #f6f6f4;
  --line: #e5e5e2;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { display: block; width: 100%; height: auto; }
a { color: var(--text); text-decoration: none; }

.container { width: 90%; max-width: 1180px; margin: 0 auto; }
.container.narrow { max-width: 760px; }

/* ---------- 顶部公告条 ---------- */
.topbar {
  background: #171717;
  color: #ececec;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  text-align: center;
  padding: 9px 0;
}

.topbar .container { width: 94%; }

@media (max-width: 560px) {
  .topbar { font-size: 11.5px; padding: 8px 0; }
}

/* ---------- Header ---------- */
.header {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: #ffffff;
  z-index: 50;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  gap: 24px;
}

.logo {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: 30px; }

.nav a {
  font-size: 14px;
  color: var(--text);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.nav a:hover,
.nav a.active { border-bottom-color: var(--text); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--text);
  color: #fff;
  font-size: 14px;
  border: 1px solid var(--text);
  transition: background 0.2s, color 0.2s;
}

.btn:hover { background: #fff; color: var(--text); }

.btn-outline { background: transparent; color: var(--text); }
.btn-outline:hover { background: var(--text); color: #fff; }

/* ---------- Hero ---------- */
.hero { padding: 64px 0 72px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 1fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 42px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  max-width: 480px;
}

.hero-sub {
  color: var(--text-light);
  font-size: 16px;
  max-width: 460px;
  margin-bottom: 30px;
}

.hero-buttons { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-img img { aspect-ratio: 4 / 3; object-fit: cover; background: var(--bg-light); }

/* ---------- Sections ---------- */
.section { padding: 64px 0; }
.section.pt-0 { padding-top: 0; }
.bg-light { background: var(--bg-light); }

.section-title {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
}

.link-more {
  font-size: 14px;
  color: var(--text-light);
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  white-space: nowrap;
}

.link-more:hover { color: var(--text); border-bottom-color: var(--text); }

/* ---------- Page head ---------- */
.page-head { padding: 56px 0 36px; text-align: center; }

.page-head h1 { font-size: 34px; font-weight: 600; margin-bottom: 12px; }

.intro-text {
  max-width: 640px;
  margin: 0 auto;
  color: var(--text-light);
  font-size: 15px;
}

/* ---------- Grids ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }

/* ---------- Category card（首页产品） ---------- */
.cat-card {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  overflow: hidden;
}

.cat-card img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #fff;
  transition: transform 0.45s ease;
}

.cat-card:hover img { transform: scale(1.035); }

.cat-card h3 {
  font-size: 15px;
  font-weight: 500;
  padding: 16px 18px 18px;
  line-height: 1.4;
}

/* ---------- 信任信息一行 ---------- */
.trust-line {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 0;
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.trust-line li {
  font-size: 13px;
  color: var(--text-light);
  letter-spacing: 0.02em;
}

.trust-line li:not(:last-child)::after {
  content: "/";
  margin: 0 16px;
  color: #cfcfcb;
}

/* ---------- 产品页：紧凑列表 ---------- */
.product-list { border-top: 1px solid var(--line); }

.product-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 36px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.product-row img {
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #fff;
}

.product-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }

.product-body p { font-size: 14px; color: var(--text-light); margin-bottom: 12px; max-width: 560px; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 52px;
  align-items: center;
}

.about-img img { aspect-ratio: 4 / 3; object-fit: cover; background: var(--bg-light); }

.about-text p { color: var(--text-light); margin-bottom: 14px; }

.mini-list {
  list-style: none;
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

.mini-list li {
  font-size: 14px;
  color: var(--text);
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

/* ---------- FAQ ---------- */
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}

.faq-item h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }

.faq-item p { color: var(--text-light); font-size: 14px; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 52px;
  align-items: start;
}

.contact-info .label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-top: 18px;
  margin-bottom: 2px;
}

.contact-info .label:first-child { margin-top: 0; }

.contact-info p:not(.label) { font-size: 15px; }

.contact-info a { border-bottom: 1px solid var(--line); }

.contact-form {
  border: 1px solid var(--line);
  padding: 30px 28px;
  background: #fff;
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 13px;
  margin-bottom: 7px;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 0;
  font-family: inherit;
  font-size: 15px;
  color: var(--text);
  background: #fff;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus { outline: none; border-color: var(--text); }

.form-group textarea { resize: vertical; }

/* ---------- Legal ---------- */
.legal p { color: var(--text-light); font-size: 14px; margin-bottom: 4px; }

.legal h2 {
  font-size: 15px;
  font-weight: 600;
  margin: 22px 0 6px;
}

/* ---------- CTA ---------- */
.cta-section { background: var(--bg-light); text-align: center; }

.cta-section h2 { font-size: 26px; font-weight: 600; margin-bottom: 10px; }

.cta-section p { color: var(--text-light); font-size: 15px; margin-bottom: 26px; }

/* ---------- Footer ---------- */
.footer {
  background: #171717;
  color: #fff;
  padding: 48px 0 32px;
  font-size: 13px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  padding-bottom: 26px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.footer-info h3 {
  font-size: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.footer-info p { opacity: 0.7; margin-bottom: 4px; line-height: 1.7; max-width: 520px; }

.footer-info a { color: #fff; opacity: 0.7; }
.footer-info a:hover { opacity: 1; }

.footer-links { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; }

.footer-links a { color: #fff; opacity: 0.7; font-size: 13px; }
.footer-links a:hover { opacity: 1; }

.copyright { opacity: 0.45; font-size: 12px; padding-top: 20px; }

/* ---------- Cookie ---------- */
.cookie-popup {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  background: #171717;
  color: #fff;
  padding: 14px 0;
  z-index: 200;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.cookie-content {
  width: 90%;
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.cookie-content p { font-size: 12px; opacity: 0.82; max-width: 760px; line-height: 1.6; }

.cookie-content a { color: #9ecbff; text-decoration: underline; }

.cookie-content button {
  padding: 8px 22px;
  border: 1px solid #fff;
  background: transparent;
  color: #fff;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.cookie-content button:hover { background: #fff; color: #171717; }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  font-size: 13px;
  color: var(--text-light);
  padding: 26px 0 0;
}

.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb span { margin: 0 8px; color: #c9c9c5; }

/* ---------- 分类页 ---------- */
.cat-head {
  padding: 34px 0 30px;
  border-bottom: 1px solid var(--line);
}

.cat-head h1 { font-size: 32px; font-weight: 600; margin-bottom: 10px; }

.cat-head p { color: var(--text-light); font-size: 15px; max-width: 620px; }

.cat-list { padding: 8px 0 0; }

.cat-item {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: center;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}

.cat-item img {
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #fff;
}

.cat-item h2 { font-size: 20px; font-weight: 600; margin-bottom: 8px; }

.cat-item p { font-size: 14px; color: var(--text-light); margin-bottom: 14px; max-width: 560px; }

.cat-item .meta {
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 14px;
  display: block;
}

/* ---------- 产品详情页 ---------- */
.pd-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 48px;
  align-items: start;
  padding-top: 32px;
}

.pd-gallery img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #fff;
  border: 1px solid var(--line);
}

.pd-gallery img + img { margin-top: 16px; }

.pd-info h1 { font-size: 30px; font-weight: 600; line-height: 1.25; margin-bottom: 10px; }

.pd-info .pd-sub { color: var(--text-light); font-size: 15px; margin-bottom: 24px; }

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 26px;
}

.spec-table tr { border-bottom: 1px solid var(--line); }

.spec-table th {
  text-align: left;
  font-weight: 400;
  font-size: 13px;
  color: var(--text-light);
  padding: 9px 0;
  width: 42%;
  vertical-align: top;
}

.spec-table td { font-size: 14px; padding: 9px 0; }

.pd-info .btn { width: 100%; text-align: center; }

.pd-note {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 12px;
  letter-spacing: 0.02em;
}

.pd-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 46px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.pd-features h3 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }

.pd-features p { font-size: 14px; color: var(--text-light); }

.related { background: var(--bg-light); padding: 60px 0; }

.related h2 { font-size: 22px; font-weight: 600; margin-bottom: 28px; }

.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.related-card {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  padding: 16px;
}

.related-card img { aspect-ratio: 1 / 1; object-fit: cover; background: #fff; }

.related-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }

.related-card span { font-size: 13px; color: var(--text-light); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 34px; }
  .hero-grid { gap: 36px; }
  .nav { gap: 20px; }
  .nav a { font-size: 13px; }
  .pd-grid { gap: 34px; }
}

@media (max-width: 860px) {
  .nav-wrap { flex-direction: column; align-items: flex-start; padding: 16px 0; gap: 12px; }
  .nav { gap: 18px; flex-wrap: wrap; }
  .hero { padding: 40px 0 48px; }
  .hero-grid,
  .about-grid,
  .contact-grid,
  .grid-2,
  .grid-3 { grid-template-columns: 1fr; gap: 28px; }
  .hero h1 { font-size: 28px; }
  .section { padding: 48px 0; }
  .page-head { padding: 40px 0 28px; }
  .page-head h1 { font-size: 26px; }
  .contact-form { padding: 24px 20px; }
  .trust-line li:not(:last-child)::after { margin: 0 10px; }
  .product-row { grid-template-columns: 120px 1fr; gap: 18px; padding: 20px 0; }
  .cat-head { padding: 26px 0 24px; }
  .cat-head h1 { font-size: 26px; }
  .cat-item { grid-template-columns: 120px 1fr; gap: 18px; padding: 24px 0; }
  .cat-item h2 { font-size: 17px; }
  .pd-grid { grid-template-columns: 1fr; gap: 28px; padding-top: 24px; }
  .pd-info h1 { font-size: 24px; }
  .pd-features { grid-template-columns: 1fr; gap: 18px; margin-top: 34px; padding-top: 26px; }
  .related-grid { grid-template-columns: 1fr; }
  .related { padding: 44px 0; }
}

@media (max-width: 560px) {
  .grid-4 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 25px; }
  .cookie-content { flex-direction: column; align-items: flex-start; }
}

/* ========== 首页全幅 Hero（v5） ========== */
.hero-full {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #262626;
}

.hero-full .hero-bg { position: absolute; inset: 0; }

.hero-full .hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 88% center;
}

.hero-full::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(16,16,16,.93) 0%, rgba(16,16,16,.78) 38%, rgba(16,16,16,.45) 58%, rgba(16,16,16,.08) 82%, rgba(16,16,16,0) 100%);
}

.hero-inner {
  position: relative;
  z-index: 3;
  width: 90%;
  max-width: 1180px;
  min-width: 0;
  flex: 0 1 auto;
  margin: 0 auto;
  padding: 80px 0;
}

.hero-full h1 {
  color: #fff;
  font-size: 38px;
  line-height: 1.34;
  font-weight: 600;
  letter-spacing: -0.01em;
  max-width: 640px;
}

.hero-tags {
  color: #dcdcdc;
  font-size: 16px;
  margin-top: 26px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.hero-tags i { font-style: normal; opacity: 0.5; }

.hero-cta {
  display: inline-block;
  margin-top: 34px;
  padding: 14px 36px;
  background: #ffffff;
  color: #111111;
  border: 1px solid #ffffff;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  transition: background .2s, color .2s;
}

.hero-cta:hover { background: transparent; color: #ffffff; }

/* ========== 三条能力（深色） ========== */
.features { background: #262626; color: #fff; padding: 54px 0 62px; }

.feat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}


.feat h3 { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 12px; line-height: 1.35; }

.feat p { font-size: 14px; color: #cbcbcb; line-height: 1.7; max-width: 255px; margin: 0 auto; }

@media (max-width: 900px) {
  .hero-full { min-height: auto; }
  .hero-inner { width: 88%; padding: 64px 0 56px; }
  .hero-full h1 { font-size: 26px; line-height: 1.4; max-width: 100%; }
  .hero-full .hero-bg img { object-position: 72% center; }
  .hero-tags { font-size: 14px; margin-top: 20px; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); gap: 34px 24px; }
  .feat p { max-width: 100%; }
}

@media (max-width: 600px) {
  .feat-grid { grid-template-columns: 1fr; gap: 30px; }
}
/* ========== 移动端导航（汉堡菜单） ========== */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px;
  height: 30px;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: #171717;
  transition: transform .25s, opacity .2s;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-wrap {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    position: relative;
    padding: 14px 0;
  }

  .nav-toggle { display: flex; }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: #fff;
    border-top: 1px solid #e6e6e6;
    border-bottom: 1px solid #e6e6e6;
    padding: 6px 0;
    z-index: 60;
  }

  .nav.open { display: flex; }

  .nav a {
    width: 100%;
    padding: 12px 0;
    font-size: 15px;
    border-bottom: 1px solid #f2f2f2;
  }

  .nav a:last-child { border-bottom: 0; }
  .nav a.active { text-decoration: none; font-weight: 600; }
}
/* ========== 按钮行（404 等页面） ========== */
.btn-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 38px;
}
/* ========== 表单合规勾选 ========== */
.form-consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 4px 0 20px;
  font-size: 13px;
  line-height: 1.6;
  color: #666;
  cursor: pointer;
}

.form-consent input {
  margin-top: 3px;
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
}

.form-consent a { color: #171717; text-decoration: underline; }
/* ========== 首页移动端细节 ========== */
@media (max-width: 600px) {
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 22px;
  }
  .section-title { font-size: 22px; }
  .link-more { font-size: 13px; }
  .hero-tags { font-size: 13px; gap: 8px; }
  .hero-cta { width: 100%; text-align: center; padding: 14px 0; }
  .cta-section h2 { font-size: 22px; }
}
@media (max-width: 600px) {
  .trust-line { gap: 10px 0; }
  .trust-line li:not(:last-child)::after { content: ""; margin: 0; }
  .trust-line li { margin-right: 14px; }
}
/* ========== 首页深色联系通栏（v7） ========== */
.contact-strip {
  background: #111111;
  color: #ffffff;
  padding: 62px 0 66px;
  text-align: center;
}

.cs-eyebrow {
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: #8a8a8a;
  margin-bottom: 14px;
}

.cs-title {
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 26px;
}

.cs-lines {
  display: flex;
  gap: 32px;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 15px;
  color: #d5d5d5;
  margin-bottom: 30px;
}

.cs-lines p { margin: 0; }

.cs-lines a {
  color: #ffffff;
  border-bottom: 1px solid rgba(255,255,255,.35);
  padding-bottom: 1px;
}

.cs-lines a:hover { border-bottom-color: #fff; }

.cs-empty { color: #6f6f6f; letter-spacing: .12em; }

.cs-btn {
  display: inline-block;
  padding: 13px 34px;
  background: #ffffff;
  color: #111111;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid #ffffff;
  border-radius: 4px;
  transition: background .2s, color .2s;
}

.cs-btn:hover { background: transparent; color: #ffffff; }

@media (max-width: 640px) {
  .contact-strip { padding: 46px 0 50px; }
  .cs-title { font-size: 21px; margin-bottom: 20px; }
  .cs-lines { flex-direction: column; gap: 10px; font-size: 14px; margin-bottom: 24px; }
}
/* ========== 页脚三栏（v8） ========== */
.footer-top { align-items: flex-start; gap: 48px; }

.footer-col { min-width: 0; }

.footer-col h4 {
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #8a8a8a;
  font-weight: 600;
  margin-bottom: 14px;
}

.footer-info .f-legal { opacity: .7; margin-bottom: 6px; }
.footer-info .f-note { opacity: .5; max-width: 340px; line-height: 1.7; margin-bottom: 0; }

.footer-contact { max-width: 360px; }
.footer-contact p {
  display: flex;
  gap: 10px;
  margin-bottom: 9px;
  font-size: 13px;
  line-height: 1.65;
  opacity: 1;
}
.f-label { color: #8a8a8a; flex: 0 0 72px; }
.f-text { opacity: .7; }
.f-empty { color: #6f6f6f; letter-spacing: .1em; }
.footer-contact a { color: #fff; border-bottom: 1px solid rgba(255,255,255,.3); }
.footer-contact a:hover { border-bottom-color: #fff; }

.footer-links { flex-direction: column; gap: 9px; }
.footer-links a { opacity: .7; }
.footer-links a:hover { opacity: 1; }

@media (max-width: 760px) {
  .footer-top { flex-direction: column; gap: 30px; }
  .footer-info .f-note { max-width: none; }
  .footer-contact { max-width: none; }
  .footer-links { flex-direction: row; flex-wrap: wrap; gap: 10px 18px; }
}
/* ========== 四栏卖点改浅色（v9） ========== */
.features { background: #f7f7f7; color: #111111; border-top: 1px solid #eeeeee; }
.feat h3 { color: #111111; }
.feat p { color: #666666; }
/* ========== 联系通栏重排（v10） ========== */
.contact-strip { padding: 72px 0; }
.cs-inner { display: grid; grid-template-columns: 1fr auto; gap: 72px; align-items: center; text-align: left; }
.cs-left { min-width: 0; }
.cs-eyebrow { font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: #7d7d7d; margin-bottom: 16px; }
.cs-title { font-size: 31px; font-weight: 600; line-height: 1.24; letter-spacing: -0.015em; color: #ffffff; max-width: 470px; margin: 0 0 16px; }
.cs-sub { font-size: 13px; line-height: 1.75; color: #8f8f8f; max-width: 430px; margin: 0; }
.cs-right { border-left: 1px solid rgba(255,255,255,.12); padding-left: 60px; }
.cs-list { margin: 0 0 24px; }
.cs-row { display: flex; align-items: baseline; gap: 18px; margin-bottom: 14px; }
.cs-row dt { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: #7d7d7d; width: 84px; flex: 0 0 84px; margin: 0; }
.cs-row dd { font-size: 15px; color: #f2f2f2; margin: 0; line-height: 1.5; }
.cs-row dd a { color: #ffffff; border-bottom: 1px solid transparent; transition: border-color .2s; }
.cs-row dd a:hover { border-bottom-color: rgba(255,255,255,.5); }
.cs-btn { padding: 12px 30px; font-size: 14px; }
@media (max-width: 900px) {
  .contact-strip { padding: 52px 0; }
  .cs-inner { grid-template-columns: 1fr; gap: 0; }
  .cs-title { font-size: 23px; margin-bottom: 12px; }
  .cs-right { border-left: 0; padding-left: 0; border-top: 1px solid rgba(255,255,255,.12); padding-top: 28px; margin-top: 30px; }
}.cs-title { font-size: 29px; max-width: 640px; margin: 0 0 14px; }
/* ===== 配色主题（v12）：三套备选，挂在 body 上 ===== */
body.theme-a {
  --c-topbar: #0f0f0f; --c-header-bg: #ffffff; --c-header-border: #ececec; --c-nav: #171717;
  --c-strip: #080808; --c-hair: rgba(255,255,255,.14); --c-accent: #9c9c9c; --c-strip-sub: #8c8c8c;
  --c-features: #f2f2f2; --c-features-border: #e6e6e6; --c-features-h3: #111111; --c-features-p: #666666;
  --c-footer: #1c1c1c;
}
body.theme-b {
  --c-topbar: #15120f; --c-header-bg: #fbfaf7; --c-header-border: #e8e3da; --c-nav: #1b1712;
  --c-strip: #191512; --c-hair: rgba(255,255,255,.13); --c-accent: #c08552; --c-strip-sub: #a2937f;
  --c-features: #f4efe6; --c-features-border: #e6dfd2; --c-features-h3: #1b1712; --c-features-p: #6f6459;
  --c-footer: #191512;
}
body.theme-c {
  --c-topbar: #0e1b16; --c-header-bg: #f7f6f1; --c-header-border: #e2e6df; --c-nav: #101d18;
  --c-strip: #0e1b16; --c-hair: rgba(255,255,255,.13); --c-accent: #9db8a6; --c-strip-sub: #93a79a;
  --c-features: #f2f1ea; --c-features-border: #e3e2d9; --c-features-h3: #101d18; --c-features-p: #5f6b63;
  --c-footer: #0e1b16;
}

.topbar { background: var(--c-topbar); }
.header { background: var(--c-header-bg); border-bottom: 1px solid var(--c-header-border); }
.logo, .nav a { color: var(--c-nav); }
.contact-strip { background: var(--c-strip); }
.cs-eyebrow { color: var(--c-accent); }
.cs-sub { color: var(--c-strip-sub); }
.cs-right { border-left-color: var(--c-hair); }
.cs-row dt { color: var(--c-accent); }
.features { background: var(--c-features); border-top: 1px solid var(--c-features-border); }
.feat h3 { color: var(--c-features-h3); }
.feat p { color: var(--c-features-p); }
.footer { background: var(--c-footer); }
.footer-col h4 { color: var(--c-accent); }
.f-label { color: var(--c-accent); }
.cookie-popup { background: var(--c-topbar); }
@media (max-width: 900px) { .cs-right { border-top-color: var(--c-hair); } }
/* ===== 基础色变量随主题走（覆盖正文/卡片/表格底色，v12.1） ===== */
body.theme-a { --white: #ffffff; --bg-light: #f2f2f2; --line: #e6e6e6; --text: #1f1f1f; --text-light: #6b6b6b; }
body.theme-b { --white: #fbf8f3; --bg-light: #f4efe6; --line: #e6dfd2; --text: #241f19; --text-light: #6f6459; }
body.theme-c { --white: #f8f7f2; --bg-light: #f2f1ea; --line: #e2e6df; --text: #101d18; --text-light: #5f6b63; }
.cat-card { background: var(--white); }
/* ===== 修正：内容区留白用纯白，避免与产品图白底出现接缝（v12.2） ===== */
body.theme-a { --white: #ffffff; --bg-light: #f2f2f2; --line: #e6e6e6; --text: #1f1f1f; --text-light: #6b6b6b; --c-header-bg: #ffffff; --c-header-border: #ececec; }
body.theme-b { --white: #ffffff; --bg-light: #f5f0e7; --line: #e7e0d3; --text: #221e18; --text-light: #6d6357; --c-header-bg: #ffffff; --c-header-border: #eae4da; }
body.theme-c { --white: #ffffff; --bg-light: #f0f1ea; --line: #e2e6df; --text: #101d18; --text-light: #5f6b63; --c-header-bg: #ffffff; --c-header-border: #e3e6df; }
/* ===== 去色带拼接：卖点区并入正文白色（v14） ===== */
.features { background: transparent; border-top: 0; padding: 96px 0 104px; }
.features-head { max-width: 620px; margin: 0 0 64px; }
.features-eyebrow { font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--c-accent); margin-bottom: 18px; }
.features-title { font-size: 26px; font-weight: 600; line-height: 1.4; letter-spacing: -.01em; color: var(--text); margin: 0; }
.feat-grid { gap: 48px; text-align: left; }
.feat h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.feat p { font-size: 14px; line-height: 1.75; max-width: 260px; margin: 0; color: var(--text-light); }

/* 卖点区与页脚之间加一道极细分隔，代替色块切换 */
.features + .footer { border-top: 0; }

@media (max-width: 900px) {
  .features { padding: 64px 0 72px; }
  .features-head { margin-bottom: 40px; }
  .features-title { font-size: 21px; }
  .feat-grid { gap: 36px; text-align: left; }
}
/* ===== 用细分隔线替代白色大标题块，弱化拼接感（v15） ===== */
.features-head { display: flex; align-items: center; gap: 26px; margin-bottom: 56px; }
.features-head::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.features-eyebrow { font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--c-accent); margin: 0; white-space: nowrap; }
.features { padding: 78px 0 96px; }

/* Hero 底部 60px 柔化，取消生硬切线 */
.hero-full::before {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 60px;
  background: linear-gradient(to bottom, rgba(255,255,255,0), #ffffff 88%);
  z-index: 2;
  pointer-events: none;
}
@media (max-width: 900px) {
  .features { padding: 56px 0 68px; }
  .features-head { margin-bottom: 36px; gap: 16px; }
}
/* ===== 第二板块改深色（v16） ===== */
.features-dark { background: #1b1713; padding: 74px 0 88px; }
.features-dark .features-head::after { background: rgba(255,255,255,.16); }
.features-dark .features-eyebrow { color: #b5814f; }
.features-dark .feat h3 { color: #f4efe7; }
.features-dark .feat p { color: #a2978a; }
.features-dark + .footer, .footer { background: #0c0a09; }
@media (max-width: 900px) { .features-dark { padding: 54px 0 64px; } }
/* ===== 修正：Hero 底部改为渐暗，接续深色板块（v16.1） ===== */
.features-dark { background: #201c17; }
.hero-full::before { height: 96px; background: linear-gradient(to bottom, rgba(32,28,23,0), #201c17 86%); }
/* ===== 品牌标识与页眉重排（v18） ===== */
.nav-wrap { padding: 15px 0; gap: 40px; }
.logo { display: inline-flex; align-items: center; gap: 11px; }
.logo-mark { display: block; width: 28px; height: 28px; }
.logo-text { font-size: 18px; font-weight: 600; letter-spacing: .17em; text-transform: uppercase; color: var(--c-nav); line-height: 1; }
.nav { gap: 36px; }
.nav a { font-size: 14px; font-weight: 500; letter-spacing: .01em; padding-bottom: 4px; }
.nav a:hover, .nav a.active { border-bottom-color: var(--c-accent); }
.header-right { display: flex; align-items: center; gap: 16px; }
.header-cta { font-size: 13px; font-weight: 500; letter-spacing: .02em; padding: 9px 20px; border: 1px solid var(--c-nav); color: var(--c-nav); border-radius: 3px; white-space: nowrap; transition: background .2s, color .2s, border-color .2s; }
.header-cta:hover { background: var(--c-nav); color: #ffffff; }

@media (max-width: 860px) {
  .header-cta { display: none; }
  .logo-text { font-size: 15px; }
  .logo-mark { width: 24px; height: 24px; }
}
/* ===== 页眉：官方 logo + 收窄 + 装饰（v19） ===== */
.header .container { max-width: 1180px; }
.logo-img { display: block; height: 44px; width: auto; }
.nav-wrap { padding: 12px 0; gap: 34px; }
.header { border-bottom: 0; }
.header::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: linear-gradient(90deg, rgba(181,129,79,0) 0%, rgba(181,129,79,.45) 20%, rgba(181,129,79,.45) 80%, rgba(181,129,79,0) 100%); }
.nav { gap: 0; }
.nav a { padding: 0 22px; position: relative; }
.nav a:not(:first-child)::before { content: ''; position: absolute; left: 0; top: 50%; margin-top: -1.5px; width: 3px; height: 3px; border-radius: 50%; background: var(--c-accent); opacity: .45; }
.header-right::before { content: ''; width: 1px; height: 20px; background: var(--line); }
.header-right { gap: 20px; }

@media (max-width: 860px) {
  .logo-img { height: 34px; }
  .nav { gap: 0; }
  .nav a { padding: 12px 0; }
  .nav a:not(:first-child)::before { display: none; }
  .header-right::before { display: none; }
}
/* 下划线只落在文字上（v19.1） */
.nav a:hover, .nav a.active { border-bottom-color: transparent; }
.nav a.active::after { content: ''; position: absolute; left: 22px; right: 22px; bottom: -3px; height: 1px; background: var(--c-accent); }
.nav a:hover::after { content: ''; position: absolute; left: 22px; right: 22px; bottom: -3px; height: 1px; background: rgba(181,129,79,.5); }
@media (max-width: 860px) { .nav a.active::after, .nav a:hover::after { display: none; } .nav a.active { background: #faf7f2; } }
/* 导航靠左收紧，避免页眉摊得太开（v19.2） */
.nav-wrap { justify-content: flex-start; gap: 0; }
.nav { margin-left: 46px; margin-right: auto; }
@media (max-width: 860px) { .nav { margin-left: 0; } }
/* 窄屏修正：汉堡按钮靠右（v19.3） */
@media (max-width: 860px) { .header-right { margin-left: auto; } .nav-wrap { padding: 12px 0; } }
/* ===== About 页（v21） ===== */
.ab-intro { padding: 58px 0 10px; }
.ab-intro h1 { font-size: 40px; line-height: 1.18; font-weight: 600; letter-spacing: -0.015em; max-width: 900px; margin: 10px 0 20px; }
.ab-lead { font-size: 16px; line-height: 1.7; color: var(--text-light); max-width: 660px; }

.ab-grid { display: grid; grid-template-columns: 1fr 1.06fr; gap: 56px; align-items: center; }
.ab-img img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.ab-text p { color: var(--text-light); font-size: 15px; line-height: 1.78; margin-bottom: 16px; }
.ab-text p:last-child { margin-bottom: 0; }
.ab-text .ab-first { font-size: 16.5px; color: var(--text); }

.ab-sec { padding: 62px 0; border-top: 1px solid var(--line); }
.ab-head { margin-bottom: 30px; }
.ab-head h2, .ab-facts h2 { font-size: 27px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 0; }
.ab-facts { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: 60px; align-items: start; }
.ab-facts h2 { margin: 8px 0 14px; }
.ab-note { font-size: 14px; line-height: 1.75; color: var(--text-light); max-width: 330px; }

.ab-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.ab-comp { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px; }
.ab-step { border-top: 1px solid var(--line); padding-top: 18px; }
.ab-step h3 { font-size: 15px; font-weight: 600; margin-bottom: 9px; }
.ab-step p { font-size: 13.5px; line-height: 1.68; color: var(--text-light); }

.ab-cta { background: #201c17; padding: 58px 0; }
.ab-cta h2 { color: #f4efe7; font-size: 25px; font-weight: 600; margin-bottom: 12px; }
.ab-cta p { color: #a2978a; font-size: 14.5px; line-height: 1.7; max-width: 560px; margin-bottom: 26px; }
.ab-btn { display: inline-block; padding: 12px 26px; border: 1px solid rgba(244,239,231,.42); color: #f4efe7; font-size: 13px; border-radius: 3px; transition: background .2s, color .2s, border-color .2s; }
.ab-btn:hover { background: #f4efe7; color: #201c17; border-color: #f4efe7; }
.ab-mail { margin-left: 20px; font-size: 13px; color: #c08552; border-bottom: 1px solid rgba(192,133,82,.4); }
.ab-mail:hover { border-bottom-color: #c08552; }

@media (max-width: 960px) {
  .ab-intro h1 { font-size: 30px; }
  .ab-grid, .ab-facts { grid-template-columns: 1fr; gap: 32px; }
  .ab-steps { grid-template-columns: repeat(2, 1fr); gap: 26px; }
  .ab-comp { grid-template-columns: 1fr; gap: 26px; }
  .ab-sec { padding: 48px 0; }
  .ab-btn { display: block; width: fit-content; }
  .ab-mail { display: inline-block; margin: 16px 0 0; }
}
/* About 页间距修正（v21.1） */
.ab-intro .breadcrumb { padding: 0 0 30px; }
.ab-intro .eyebrow { display: block; margin-bottom: 12px; }
.ab-story { padding-top: 34px; }
/* About 页抬头改为居中大字（v21.2） */
.ab-hero { padding: 84px 0 64px; text-align: center; }
.ab-hero h1 { font-size: 54px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 22px; }
.ab-rule { width: 36px; height: 1px; background: var(--c-accent); opacity: .75; margin: 0 auto 24px; }
.ab-sub { font-size: 13px; letter-spacing: .2em; text-transform: uppercase; color: var(--c-accent); margin-bottom: 12px; }
.ab-line { font-size: 16px; color: var(--text-light); line-height: 1.7; max-width: 620px; margin: 0 auto; }
.ab-story { padding-top: 0; }
@media (max-width: 960px) { .ab-hero { padding: 56px 0 44px; } .ab-hero h1 { font-size: 36px; } .ab-sub { font-size: 12px; letter-spacing: .16em; } }
/* Why Partner With Us（v23） */
.ab-why-head h2 { font-size: 27px; font-weight: 600; letter-spacing: -0.01em; max-width: 720px; margin: 8px 0 0; }
.ab-why-lead { font-size: 15px; line-height: 1.75; color: var(--text-light); max-width: 720px; margin-top: 14px; }
.ab-list { display: grid; grid-template-columns: 1fr 1fr; column-gap: 56px; margin-top: 36px; padding: 0; list-style: none; }
.ab-list li { display: flex; gap: 13px; padding: 17px 0; border-top: 1px solid var(--line); font-size: 14px; line-height: 1.65; color: var(--text); }
.ab-list li:last-child { border-bottom: 0; }
.ab-list .tick { flex: 0 0 auto; color: var(--c-accent); font-size: 12px; line-height: 1.9; }
.ab-list strong { font-weight: 600; }
@media (max-width: 960px) { .ab-list { grid-template-columns: 1fr; column-gap: 0; } .ab-why-head h2 { font-size: 23px; } }/* 列表收口与标题调整 */
.ab-list { border-bottom: 1px solid var(--line); }
.ab-why-lead { font-size: 16px; color: var(--text); margin-top: 6px; max-width: 760px; }
/* 无配图版：正文单列（v23.1） */
.ab-text-wide { max-width: 820px; }
.ab-text-wide p { font-size: 15.5px; line-height: 1.8; }/* 正文列居中，与居中抬头对齐 */
.ab-text-wide { max-width: 820px; margin: 0 auto; }
/* 抬头重排（v26） */
.ab-hero { padding: 86px 0 78px; text-align: center; }
.ab-kicker { display: block; font-size: 11.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--text-light); margin-bottom: 28px; }
.ab-hero h1 { font-size: 62px; font-weight: 600; letter-spacing: .005em; line-height: 1.05; margin: 0; }
.ab-rule { width: 30px; height: 1px; background: var(--c-accent); opacity: .8; margin: 26px auto 24px; }
.ab-sub { font-size: 20px; font-weight: 500; letter-spacing: .01em; text-transform: none; color: var(--text); margin: 0 0 12px; }
.ab-line { font-size: 15px; color: var(--text-light); line-height: 1.7; max-width: 620px; margin: 0 auto; }
@media (max-width: 960px) { .ab-hero { padding: 56px 0 48px; } .ab-hero h1 { font-size: 38px; } .ab-sub { font-size: 17px; } .ab-kicker { font-size: 10.5px; letter-spacing: .16em; margin-bottom: 20px; } }
/* 抬头与清单合并为两栏（v27，orin 式） */
.ab-top { padding: 78px 0 66px; }
.ab-top-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 76px; align-items: start; }
.ab-top .ab-kicker { display: block; font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--text-light); margin-bottom: 18px; }
.ab-top h1 { font-size: 52px; font-weight: 600; letter-spacing: .005em; line-height: 1.05; margin: 0 0 0; text-align: left; }
.ab-top .ab-rule { margin: 24px 0 22px; }
.ab-top .ab-sub { font-size: 18px; font-weight: 500; letter-spacing: .01em; text-transform: none; color: var(--text); margin: 0 0 10px; text-align: left; }
.ab-top .ab-line { font-size: 14.5px; color: var(--text-light); line-height: 1.7; max-width: 300px; margin: 0; text-align: left; }
.ab-top .ab-why-lead { font-size: 15px; line-height: 1.75; color: var(--text); margin: 4px 0 0; max-width: 100%; }
.ab-top .ab-list { grid-template-columns: 1fr; column-gap: 0; margin-top: 30px; }
.ab-top .ab-list li { padding: 15px 0; }
@media (max-width: 960px) {
  .ab-top { padding: 52px 0 44px; }
  .ab-top-grid { grid-template-columns: 1fr; gap: 34px; }
  .ab-top h1 { font-size: 38px; }
  .ab-top .ab-line { max-width: 100%; }
}/* 左栏补按钮，标签句放宽 */
.ab-top .ab-line { max-width: 400px; }
.ab-hero-btn { display: inline-block; margin-top: 30px; padding: 11px 24px; border: 1px solid var(--c-nav); color: var(--c-nav); font-size: 13px; border-radius: 3px; transition: background .2s, color .2s; }
.ab-hero-btn:hover { background: var(--c-nav); color: #fff; }
/* orin 式居中版式（v28，字号收敛） */
.ab-top { padding: 0; }
.ab-band { background: var(--bg-light); padding: 30px 0; }
.ab-band h1 { font-size: 27px; font-weight: 500; letter-spacing: .01em; text-align: center; margin: 0; color: var(--text); }
.ab-top-body { padding: 44px 0 64px; text-align: center; }
.ab-lead-lg { font-size: 30px; font-weight: 600; line-height: 1.3; letter-spacing: .005em; margin: 0 0 14px; color: var(--text); }
.ab-subline { font-size: 17px; line-height: 1.6; margin: 0 0 24px; color: var(--text); }
.ab-lead-para { font-size: 14.5px; line-height: 1.75; color: var(--text-light); max-width: 720px; margin: 0 auto 34px; }
.ab-top .ab-list { grid-template-columns: 1fr 1fr; column-gap: 56px; margin-top: 0; text-align: left; max-width: 920px; margin-left: auto; margin-right: auto; }
.ab-top .ab-list li { padding: 15px 0; }
@media (max-width: 860px) {
  .ab-band { padding: 22px 0; }
  .ab-band h1 { font-size: 21px; }
  .ab-top-body { padding: 34px 0 48px; }
  .ab-lead-lg { font-size: 24px; }
  .ab-subline { font-size: 15px; }
  .ab-top .ab-list { grid-template-columns: 1fr; max-width: 100%; }
}/* 清单回归单列，行行齐平 */
.ab-top .ab-list { grid-template-columns: 1fr; max-width: 780px; margin-left: auto; margin-right: auto; }
.ab-top .ab-list li { padding: 16px 0; }/* 带内标题回来用原词，清单加回原标题 */
.ab-band h1 { font-size: 26px; font-weight: 600; letter-spacing: .02em; }
.ab-label { display: block; font-size: 10.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--text-light); margin-bottom: 16px; }
.ab-lead-para { margin-top: 0; }
/* 单一板块：抬头三行 + Why 清单（v30） */
.ab-intro { padding: 66px 0 70px; text-align: center; }
.ab-intro .ai-top h1 { font-size: 36px; font-weight: 600; letter-spacing: .01em; line-height: 1.1; margin: 0 0 14px; }
.ab-intro .ai-sub { font-size: 20px; font-weight: 500; line-height: 1.4; margin: 0 0 8px; color: var(--text); }
.ab-intro .ai-line { font-size: 15px; line-height: 1.6; margin: 0; color: var(--text-light); }
.ai-why { margin-top: 40px; padding-top: 38px; border-top: 1px solid var(--line); }
.ab-intro .ab-label { display: block; font-size: 10.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--text-light); margin-bottom: 18px; }
.ab-intro .ab-lead-para { font-size: 14.5px; line-height: 1.75; color: var(--text); max-width: 660px; margin: 0 auto 30px; }
.ab-intro .ab-list { grid-template-columns: 1fr; max-width: 780px; margin: 0 auto; text-align: left; }
.ab-intro .ab-list li { padding: 14px 0; font-size: 14px; }
@media (max-width: 860px) {
  .ab-intro { padding: 46px 0 50px; }
  .ab-intro .ai-top h1 { font-size: 28px; }
  .ab-intro .ai-sub { font-size: 17px; }
  .ab-intro .ai-line { font-size: 14px; }
  .ai-why { margin-top: 30px; padding-top: 28px; }
}
/* 字号回调放大 + 全居中（v31） */
.ab-intro .ai-top h1 { font-size: 46px; margin-bottom: 16px; }
.ab-intro .ai-sub { font-size: 24px; margin-bottom: 10px; }
.ab-intro .ai-line { font-size: 17px; }
.ab-intro .ab-label { font-size: 12px; letter-spacing: .18em; margin-bottom: 20px; }
.ab-intro .ab-lead-para { font-size: 16px; line-height: 1.8; max-width: 700px; margin-bottom: 34px; }
.ab-intro .ab-list { max-width: 860px; }
.ab-intro .ab-list li { font-size: 15.5px; line-height: 1.6; padding: 16px 0; justify-content: center; text-align: center; }
.ab-intro .ab-list .tick { font-size: 14px; }
@media (max-width: 860px) {
  .ab-intro .ai-top h1 { font-size: 32px; }
  .ab-intro .ai-sub { font-size: 19px; }
  .ab-intro .ai-line { font-size: 15px; }
  .ab-intro .ab-lead-para { font-size: 15px; }
  .ab-intro .ab-list li { font-size: 14.5px; }
}/* 清单整列居中、条目左端对齐，避免勾标记左右乱跳 */
.ab-intro .ab-list { max-width: 720px; margin: 0 auto; }
.ab-intro .ab-list li { justify-content: flex-start; text-align: left; }
/* Why 部分统一字号（v32） */
.ab-intro .ab-label { font-size: 16px; font-weight: 500; letter-spacing: 0; text-transform: none; color: var(--text); margin-bottom: 14px; }
.ab-intro .ab-lead-para { font-size: 16px; }
.ab-intro .ab-list li { font-size: 16px; }
.ab-intro .ab-list .tick { font-size: 16px; }
/* 第一部分：三行同字号、左对齐（v33） */
.ab-intro .ai-top { text-align: left; }
.ab-intro .ai-top h1 { font-size: 18px; font-weight: 400; letter-spacing: 0; line-height: 1.5; margin: 0; }
.ab-intro .ai-top .ai-sub { font-size: 18px; font-weight: 400; line-height: 1.5; margin: 0; color: var(--text); }
.ab-intro .ai-top .ai-line { font-size: 18px; line-height: 1.5; margin: 0; color: var(--text); }
@media (max-width: 860px) { .ab-intro .ai-top h1, .ab-intro .ai-top .ai-sub, .ab-intro .ai-top .ai-line { font-size: 16px; } }/* 第一部分居中（与第二部分同一条中线） */
.ab-intro .ai-top { text-align: center; }/* 全块统一 16px */
.ab-intro .ai-top h1, .ab-intro .ai-top .ai-sub, .ab-intro .ai-top .ai-line { font-size: 16px; line-height: 1.65; }/* 收紧两部分之间的间隙 */
.ab-intro .ai-why { margin-top: 26px; padding-top: 22px; }
/* 三行略放大，Flopeir 单独加大（v36） */
.ab-intro .ai-top h1 { font-size: 30px; font-weight: 600; line-height: 1.2; margin: 0 0 12px; }
.ab-intro .ai-top .ai-sub { font-size: 18px; line-height: 1.6; margin: 0 0 4px; }
.ab-intro .ai-top .ai-line { font-size: 18px; line-height: 1.6; margin: 0; }
@media (max-width: 860px) { .ab-intro .ai-top h1 { font-size: 24px; } .ab-intro .ai-top .ai-sub, .ab-intro .ai-top .ai-line { font-size: 16px; } }
/* 修 h1 继承的 900px 限宽，导致 Flopeir 偏左 */
.ab-intro .ai-top h1 { max-width: none; width: auto; }
/* 田字格图片 + 页脚条款行（v39） */
.ai-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 30px auto 0; }
.ai-grid img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; display: block; border-radius: 2px; }
.ab-intro .ai-why { margin-top: 34px; padding-top: 0; border-top: 0; }
.footer-terms { margin: 26px 0 0; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.10); font-size: 12.5px; letter-spacing: .02em; color: rgba(255,255,255,.62); }
@media (max-width: 860px) { .ai-grid { grid-template-columns: 1fr; gap: 10px; margin-top: 24px; } }/* 页脚条款行：去掉多余横线，紧跟页脚分隔线 */
.footer-terms { border-top: 0; margin: 18px 0 0; padding-top: 0; }
/* v41 商务风改版：深色抬头带 + 暖底 + 白色内容卡 */
body.page-about { background: #f7f2e9; }
.ab-band { background: #201c17; padding: 66px 0 60px; text-align: center; }
.ab-band .ab-rule { display: block; width: 46px; height: 1px; background: #c08552; margin: 0 auto 22px; }
.ab-band .ai-top h1 { font-size: 30px; font-weight: 600; line-height: 1.2; letter-spacing: .01em; margin: 0 0 14px; color: #ffffff; max-width: none; }
.ab-band .ai-top .ai-sub { font-size: 18px; line-height: 1.6; margin: 0 0 6px; color: rgba(255,255,255,.88); }
.ab-band .ai-top .ai-line { font-size: 18px; line-height: 1.6; margin: 0; color: rgba(255,255,255,.64); }
body.page-about .ab-intro { padding: 46px 0 78px; }
body.page-about .ai-grid { margin: 0 auto; }
body.page-about .ai-grid img { border: 1px solid rgba(32,28,23,.10); border-radius: 3px; }
body.page-about .ab-intro .ai-why { margin: 44px auto 0; max-width: 900px; padding: 44px 56px 46px; background: #ffffff; border: 1px solid #e7e0d3; border-radius: 3px; box-shadow: 0 1px 2px rgba(32,28,23,.04); }
@media (max-width: 860px) { .ab-band { padding: 44px 0 38px; } .ab-band .ai-top h1 { font-size: 24px; } .ab-band .ai-top .ai-sub, .ab-band .ai-top .ai-line { font-size: 16px; } body.page-about .ab-intro { padding: 34px 0 54px; } body.page-about .ab-intro .ai-why { margin-top: 28px; padding: 30px 22px 34px; } }
/* v42 顶部色带成立 + 收紧全部上下留白 */
.ab-band { background: #efe7d7; padding: 44px 0 38px; border-bottom: 1px solid #ded2bc; }
.ab-band .ab-rule { width: 54px; height: 1px; background: #c08552; margin: 0 auto 18px; }
.ab-band .ai-top h1 { color: #201c17; font-size: 32px; margin: 0 0 10px; }
.ab-band .ai-top .ai-sub { color: #4a4238; margin: 0 0 4px; }
.ab-band .ai-top .ai-line { color: #6d6357; }
body.page-about .ab-intro { padding: 30px 0 74px; }
body.page-about .ab-intro .ai-why { margin-top: 36px; }
@media (max-width: 860px) { .ab-band { padding: 34px 0 30px; } .ab-band .ai-top h1 { font-size: 24px; } .ab-band .ai-top .ai-sub, .ab-band .ai-top .ai-line { font-size: 16px; } body.page-about .ab-intro { padding: 22px 0 52px; } body.page-about .ab-intro .ai-why { margin-top: 26px; } }/* 顶部色带底部留白对齐修正 */
.ab-band { padding: 42px 0 34px; }
.ab-band .ai-top .ai-line { margin: 0; }
.ab-band .ai-top .ai-sub { margin-bottom: 4px; }
@media (max-width: 860px) { .ab-band { padding: 32px 0 26px; } }/* v43 进一步收紧上下间距 */
.ab-band { padding: 30px 0 26px; }
.ab-band .ab-rule { margin-bottom: 16px; }
.ab-band .ai-top h1 { margin-bottom: 8px; }
body.page-about .ab-intro { padding: 22px 0 62px; }
body.page-about .ai-grid { gap: 12px; }
body.page-about .ab-intro .ai-why { margin-top: 28px; padding: 36px 52px 38px; }
@media (max-width: 860px) { .ab-band { padding: 24px 0 20px; } body.page-about .ab-intro { padding: 18px 0 46px; } body.page-about .ab-intro .ai-why { margin-top: 22px; padding: 28px 20px 30px; } }/* 第一部分品牌字改用官方 logo（白底图用正片叠底融进暖砂色带） */
.ab-band .band-title { margin: 0 0 10px; }
.ab-band .band-logo { display: block; height: 54px; width: auto; margin: 0 auto; mix-blend-mode: multiply; }
@media (max-width: 860px) { .ab-band .band-logo { height: 40px; } }/* 第一部分恢复文字标题并放大 */
.ab-band .ai-top h1 { font-size: 40px; margin: 0 0 10px; }
@media (max-width: 860px) { .ab-band .ai-top h1 { font-size: 30px; } }/* 屏幕阅读器/搜索引擎可见的隐藏 h1 */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
/* v48 FAQ 页：色带标题 + 白卡手风琴 */
body.page-faq { background: #f7f2e9; }
.fq-band { background: #efe7d7; border-bottom: 1px solid #ded2bc; padding: 34px 0 30px; text-align: center; }
.fq-band h1 { font-size: 40px; font-weight: 600; margin: 0; color: #201c17; letter-spacing: .01em; }
.fq-band .fq-sub { margin: 10px 0 0; font-size: 16px; color: #6d6357; }
.fq-wrap { padding: 26px 0 66px; }
.fq-card { max-width: 900px; margin: 0 auto; background: #ffffff; border: 1px solid #e7e0d3; border-radius: 3px; padding: 4px 52px; }
.fq-item { border-bottom: 1px solid #efe9dd; }
.fq-item:last-child { border-bottom: 0; }
.fq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 19px 0; font-size: 16px; font-weight: 600; color: #201c17; cursor: pointer; list-style: none; }
.fq-item summary::-webkit-details-marker { display: none; }
.fq-sign { position: relative; flex: 0 0 auto; width: 12px; height: 12px; }
.fq-sign::before, .fq-sign::after { content: ''; position: absolute; background: #c08552; }
.fq-sign::before { left: 0; top: 5px; width: 12px; height: 2px; }
.fq-sign::after { left: 5px; top: 0; width: 2px; height: 12px; transition: opacity .18s; }
.fq-item[open] .fq-sign::after { opacity: 0; }
.fq-item .fq-a { padding: 0 0 22px; max-width: 740px; font-size: 15.5px; line-height: 1.8; color: #4a4238; }
.fq-cta { max-width: 900px; margin: 36px auto 0; text-align: center; }
.fq-cta h2 { font-size: 20px; font-weight: 600; margin: 0 0 8px; color: #201c17; }
.fq-cta p { font-size: 15.5px; color: #6d6357; margin: 0 0 22px; }
@media (max-width: 860px) { .fq-band { padding: 24px 0 20px; } .fq-band h1 { font-size: 30px; } .fq-band .fq-sub { font-size: 15px; } .fq-wrap { padding: 18px 0 48px; } .fq-card { padding: 2px 20px; } .fq-item summary { font-size: 15.5px; padding: 17px 0; } .fq-item .fq-a { font-size: 15px; padding-bottom: 18px; } .fq-cta { margin-top: 28px; } .fq-cta h2 { font-size: 18px; } }
/* v50 Contact 页：色带标题 + 左信息卡 + 右询盘表单 */
body.page-contact { background: #f7f2e9; }
.ct-band { background: #efe7d7; border-bottom: 1px solid #ded2bc; padding: 34px 0 30px; text-align: center; }
.ct-band h1 { font-size: 40px; font-weight: 600; margin: 0; color: #201c17; letter-spacing: .01em; }
.ct-band .ct-sub { margin: 10px 0 0; font-size: 16px; color: #6d6357; }
.ct-wrap { padding: 26px 0 70px; }
.ct-grid { display: grid; grid-template-columns: 336px 1fr; gap: 24px; max-width: 1080px; margin: 0 auto; align-items: start; }
.ct-card { background: #ffffff; border: 1px solid #e7e0d3; border-radius: 3px; }
.ct-info { padding: 30px 30px 12px; }
.ct-row { margin-bottom: 20px; }
.ct-label { margin: 0 0 6px; font-size: 11.5px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: #a87848; }
.ct-value { margin: 0; font-size: 15.5px; line-height: 1.7; color: #201c17; }
.ct-value a { color: #201c17; text-decoration: none; border-bottom: 1px solid #d8c8b2; padding-bottom: 1px; }
.ct-value a:hover { border-bottom-color: #c08552; color: #8a5a2b; }
.ct-formcard { padding: 34px 40px 30px; }
.ct-formgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; }
.ct-field label { display: block; margin-bottom: 7px; font-size: 13px; color: #6d6357; }
.ct-field input, .ct-field textarea { width: 100%; padding: 11px 13px; border: 1px solid #ded5c5; border-radius: 2px; background: #fffdf9; font-family: inherit; font-size: 15px; color: #201c17; }
.ct-field input:focus, .ct-field textarea:focus { outline: none; border-color: #c08552; background: #ffffff; }
.ct-field textarea { resize: vertical; line-height: 1.6; }
.ct-field.full { grid-column: 1 / -1; }
.ct-consent { display: flex; align-items: flex-start; gap: 10px; margin: 20px 0 20px; font-size: 13.5px; line-height: 1.6; color: #5b534a; }
.ct-consent input { margin-top: 3px; flex: 0 0 auto; }
.ct-consent a { color: #8a5a2b; }
.ct-btn { display: inline-block; padding: 14px 36px; border: 0; border-radius: 2px; background: #201c17; color: #ffffff; font-family: inherit; font-size: 14px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; cursor: pointer; }
.ct-btn:hover { background: #a87848; }
.ct-hint { margin: 14px 0 0; font-size: 13px; color: #8a8175; }
@media (max-width: 900px) { .ct-grid { grid-template-columns: 1fr; gap: 16px; } .ct-band { padding: 24px 0 20px; } .ct-band h1 { font-size: 30px; } .ct-band .ct-sub { font-size: 15px; } .ct-wrap { padding: 18px 0 50px; } .ct-info { padding: 24px 20px 8px; } .ct-formcard { padding: 26px 20px 26px; } .ct-formgrid { grid-template-columns: 1fr; } .ct-btn { width: 100%; } }.ct-links a { display: inline-block; line-height: 1.9; }.ct-row { margin-bottom: 16px; }
.ct-info { padding: 28px 30px 24px; }
.ct-links a { display: inline; line-height: inherit; }