/* ============================================================
   上海凝芙实业有限公司 官网样式
   设计语言：稳重商务 | 深海军蓝 + 暖金
   ============================================================ */

:root {
  --color-primary: #0F2C5C;
  --color-primary-dark: #091C3D;
  --color-primary-light: #1F4080;
  --color-accent: #C8A45C;
  --color-accent-dark: #A88344;
  --color-accent-light: #E8C988;
  --color-text: #1a1a1a;
  --color-text-muted: #555;
  --color-text-light: #888;
  --color-text-on-dark: #ffffff;
  --color-bg: #ffffff;
  --color-bg-alt: #F7F8FA;
  --color-bg-warm: #FAF8F4;
  --color-border: #E5E7EB;
  --color-border-strong: #D1D5DB;
  --shadow-sm: 0 1px 3px rgba(15, 44, 92, 0.06), 0 1px 2px rgba(15, 44, 92, 0.04);
  --shadow-md: 0 4px 16px rgba(15, 44, 92, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 44, 92, 0.12);
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --container: 1200px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-primary); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

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

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-light);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  box-shadow: var(--shadow-sm);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text .name-cn {
  font-size: 18px;
  color: var(--color-primary);
  font-weight: 700;
}

.brand-text .name-en {
  font-size: 10px;
  color: var(--color-text-light);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-size: 15px;
  color: var(--color-text);
  font-weight: 500;
  padding: 8px 0;
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 24px;
}

.main-nav a.active {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  font-size: 24px;
  color: var(--color-primary);
  padding: 8px;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-on-dark);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-text-on-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}
.btn-accent:hover {
  background: var(--color-accent-dark);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-text-on-dark);
}

.btn-arrow::after {
  content: "→";
  transition: transform 0.2s ease;
}
.btn-arrow:hover::after { transform: translateX(4px); }

/* ========== Hero (homepage) ========== */
.hero {
  position: relative;
  background:
    linear-gradient(135deg, rgba(15, 44, 92, 0.93), rgba(9, 28, 61, 0.90)),
    radial-gradient(ellipse at top right, rgba(200, 164, 92, 0.18), transparent 60%),
    url("../img/cat/hero-cover.jpg") center 40% / cover no-repeat,
    var(--color-primary-dark);
  color: var(--color-text-on-dark);
  padding: 100px 0 120px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(200, 164, 92, 0.08), transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero .label {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--color-accent);
  margin-bottom: 20px;
  padding: 6px 14px;
  background: rgba(200, 164, 92, 0.12);
  border: 1px solid rgba(200, 164, 92, 0.3);
  border-radius: 100px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero .subtitle {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 400;
  margin-bottom: 16px;
}

.hero .lead {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-actions .btn-outline {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}
.hero-actions .btn-outline:hover {
  background: #fff;
  color: var(--color-primary);
}

/* ========== Data bar ========== */
.data-bar {
  background: #fff;
  margin-top: -60px;
  position: relative;
  z-index: 2;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 32px 0;
}

.data-bar .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.data-item {
  text-align: center;
  padding: 8px;
  border-right: 1px solid var(--color-border);
}
.data-item:last-child { border-right: none; }

.data-num {
  font-size: 40px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -1px;
  line-height: 1.1;
}

.data-num .unit {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-accent-dark);
  margin-left: 4px;
}

.data-label {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 8px;
}

/* ========== Section ========== */
.section {
  padding: 96px 0;
}

.section-alt { background: var(--color-bg-alt); }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

.section-head .eyebrow {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  margin-bottom: 12px;
  font-weight: 600;
}

.section-head h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.section-head .lead {
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ========== Module grid (homepage 4 modules) ========== */
.module-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.module-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.module-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: var(--color-accent);
  transition: var(--transition);
}

.module-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.module-card:hover::before {
  height: 100%;
}

.module-card .icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(15, 44, 92, 0.08), rgba(15, 44, 92, 0.02));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-primary);
}

.module-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.module-card .sub {
  font-size: 14px;
  color: var(--color-accent-dark);
  font-weight: 500;
  margin-bottom: 16px;
}

.module-card p {
  color: var(--color-text-muted);
  line-height: 1.8;
  font-size: 15px;
}

.module-card .link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 20px;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 14px;
}

/* ========== Page hero (sub pages) ========== */
.page-hero {
  background:
    linear-gradient(135deg, rgba(15, 44, 92, 0.94), rgba(9, 28, 61, 0.96)),
    var(--color-primary-dark);
  color: #fff;
  padding: 80px 0 70px;
  text-align: center;
}

.page-hero h1 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.page-hero p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 720px;
  margin: 0 auto;
}

.crumbs {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 24px;
}

.crumbs a { color: rgba(255, 255, 255, 0.7); }
.crumbs a:hover { color: var(--color-accent); }
.crumbs .sep { margin: 0 8px; opacity: 0.5; }

/* ========== Content blocks ========== */
.prose {
  max-width: 880px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
}

.prose p {
  margin-bottom: 16px;
}

.prose h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 32px 0 16px;
}

.prose ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

.prose li {
  margin-bottom: 8px;
}

.prose strong {
  color: var(--color-primary);
}

/* ========== Timeline (about page) ========== */
.timeline {
  position: relative;
  max-width: 760px;
  margin: 48px auto 0;
  padding: 20px 0;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 80px;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 32px;
  position: relative;
}

.timeline-year {
  width: 80px;
  flex-shrink: 0;
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -1px;
  text-align: right;
  padding-right: 28px;
}

.timeline-item::after {
  content: "";
  position: absolute;
  left: 76px;
  top: 14px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-content {
  flex: 1;
  padding-left: 28px;
  font-size: 16px;
  color: var(--color-text);
}

/* ========== Category grid ========== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.category-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.category-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.category-card .num {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 36px;
  font-weight: 800;
  color: rgba(15, 44, 92, 0.06);
  line-height: 1;
}

.category-card .cat-img {
  display: block;
  width: calc(100% + 48px);
  height: 170px;
  object-fit: cover;
  margin: -28px -24px 20px;
  border-bottom: 1px solid var(--color-border);
}

.category-card .icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-light);
  margin-bottom: 20px;
}

.category-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.category-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}

.category-card .brands {
  font-size: 12px;
  color: var(--color-accent-dark);
  font-weight: 500;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
}

/* ========== Network / brand grids ========== */
.network-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.network-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}

.network-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.network-card .logo-placeholder,
.network-card .logo-img {
  width: 100%;
  height: 60px;
  background: linear-gradient(135deg, var(--color-bg-alt), #fff);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--color-text-light);
  font-size: 13px;
  font-weight: 500;
  overflow: hidden;
}

.network-card .logo-img img {
  display: block;
  max-width: 78%;
  max-height: 100%;
  object-fit: contain;
}

.network-card h4 {
  font-size: 15px;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 6px;
}

.network-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ========== Brand list ========== */
.brand-group {
  margin-bottom: 32px;
}

.brand-matrix {
  display: block;
  margin: 0 auto 12px;
  max-width: 860px;
  text-align: center;
  text-decoration: none;
}

.brand-matrix img {
  width: 100%;
  height: auto;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.brand-matrix:hover img {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md, 0 10px 28px rgba(15, 44, 92, 0.14));
}

.brand-matrix-hint {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 13px;
  margin: 0 0 56px;
}

/* 品牌 Logo 无缝循环滚动横幅 */
.brand-marquee {
  position: relative;
  overflow: hidden;
  margin: 20px -32px 0;
  padding: 2px 0 8px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}

.brand-marquee-track {
  display: flex;
  gap: 16px;
  width: max-content;
  animation: brand-scroll 45s linear infinite;
}

.brand-marquee-track.reverse {
  animation-direction: reverse;
  animation-duration: 45s;
}

@keyframes brand-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.brand-marquee:hover .brand-marquee-track {
  animation-play-state: paused;
}

.brand-marquee .brand-logo-card {
  flex: 0 0 auto;
  width: 200px;
  height: 140px;
}

.brand-hint {
  color: var(--color-text-muted);
  font-size: 13px;
  line-height: 1.7;
  margin: 18px 0 0;
  text-align: center;
}

.brand-logo-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
  transition: var(--transition);
  overflow: hidden;
}

.brand-logo-card img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.brand-logo-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.brand-group h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.brand-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.brand-chip {
  padding: 10px 18px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
  transition: var(--transition);
}

.brand-chip:hover {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}

/* ========== Logistics features ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.feature-card {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.feature-card .num {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  flex-shrink: 0;
}

.feature-card h4 {
  font-size: 17px;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ========== Contact ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 32px;
}

.contact-info {
  padding: 32px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-lg);
}

.contact-info h3 {
  font-size: 22px;
  margin-bottom: 24px;
  font-weight: 700;
}

.contact-item {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 14px;
}

.contact-item:last-child { border-bottom: none; }

.contact-item .label {
  flex-shrink: 0;
  width: 80px;
  color: rgba(255, 255, 255, 0.6);
}

.contact-item .value {
  color: #fff;
  font-weight: 500;
}

.contact-form {
  padding: 32px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.contact-form h3 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 24px;
  font-weight: 700;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-group label::after {
  content: " *";
  color: var(--color-accent-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 14px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg-alt);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(15, 44, 92, 0.08);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.contact-form button[type="submit"] {
  width: 100%;
  margin-top: 8px;
}

/* ========== Recruitment ========== */
.recruit-intro {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.9;
}

.job-list {
  display: grid;
  gap: 16px;
  max-width: 880px;
  margin: 0 auto;
}

.job-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 24px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.job-item:hover {
  border-left-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.job-item h4 {
  font-size: 17px;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 6px;
}

.job-item .meta {
  font-size: 13px;
  color: var(--color-text-muted);
}

.job-item .apply {
  padding: 8px 20px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  flex-shrink: 0;
}

.job-item .apply:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

.job-placeholder {
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  color: var(--color-text-light);
  font-size: 14px;
}

.apply-note {
  max-width: 720px;
  margin: 48px auto 0;
  padding: 24px 32px;
  background: var(--color-bg-warm);
  border: 1px solid rgba(200, 164, 92, 0.3);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--color-text-muted);
  text-align: center;
}

.apply-note strong {
  color: var(--color-primary);
}

/* ========== Qualifications ========== */
.qual-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 880px;
  margin: 32px auto 0;
}

.qual-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: var(--transition);
}

.qual-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.qual-card .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--color-bg-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-dark);
  flex-shrink: 0;
}

.qual-card h4 {
  font-size: 16px;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 6px;
}

.qual-card .num {
  font-size: 13px;
  color: var(--color-text-muted);
  font-family: monospace;
}

/* ========== Bottom intro (homepage) ========== */
.about-strip {
  background: var(--color-bg-warm);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-top: 64px;
  border-left: 4px solid var(--color-accent);
}

.about-strip h3 {
  font-size: 24px;
  color: var(--color-primary);
  margin-bottom: 16px;
  font-weight: 700;
}

.about-strip p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.9;
}

/* ========== CTA band ========== */
.cta-band {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  padding: 64px 0;
  text-align: center;
}

.cta-band h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 14px;
}

.cta-band p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 28px;
}

/* ========== Footer ========== */
.site-footer {
  background: #0A1F45;
  color: rgba(255, 255, 255, 0.7);
  padding: 56px 0 24px;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand .brand-text .name-cn {
  color: #fff;
  font-size: 18px;
}

.footer-brand p {
  margin-top: 16px;
  line-height: 1.8;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-col h5 {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.footer-col ul li {
  margin-bottom: 10px;
  list-style: none;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom .icp {
  font-family: monospace;
  color: rgba(255, 255, 255, 0.4);
}

/* ========== Responsive ========== */
@media (max-width: 960px) {
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: #fff;
    border-top: 1px solid var(--color-border);
    padding: 16px 24px;
    gap: 0;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
    width: 100%;
  }

  .nav-toggle { display: block; }

  .hero { padding: 64px 0 96px; }
  .hero h1 { font-size: 32px; }
  .hero .subtitle { font-size: 16px; }

  .data-bar .container { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .data-item { border-right: none; }

  .module-grid,
  .features-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .network-grid { grid-template-columns: repeat(2, 1fr); }
  .qual-list { grid-template-columns: 1fr; }

  .section { padding: 64px 0; }
  .section-head h2 { font-size: 28px; }
  .page-hero h1 { font-size: 28px; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-strip { padding: 32px; }

  .timeline::before { left: 60px; }
  .timeline-item::after { left: 56px; }
  .timeline-year { width: 60px; font-size: 22px; padding-right: 20px; }
  .timeline-content { padding-left: 24px; }

  .form-row-2 { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .category-grid,
  .network-grid,
  .data-bar .container { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .job-item { flex-direction: column; align-items: flex-start; gap: 12px; }
  .cta-band h2 { font-size: 22px; }
}