/* ============================================
   闫宝龙 · 葡萄牙语网站建设
   Design System: Deep Sea Blue + Vitality Orange
   ============================================ */

:root {
  /* 品牌主色 */
  --c-primary: #0A2540;          /* 深海蓝 - 主体色 */
  --c-primary-dark: #061A2E;
  --c-primary-light: #1A3A5C;
  --c-accent: #FF6B35;           /* 活力橙 - 强调色 */
  --c-accent-dark: #E55A2B;
  --c-accent-light: #FF8A5C;

  /* 葡语配色点缀 */
  --c-brasil-green: #009C3B;
  --c-brasil-yellow: #FFDF00;

  /* 中性色 */
  --c-white: #FFFFFF;
  --c-bg: #FFFFFF;
  --c-bg-alt: #F7F8FA;
  --c-bg-dark: #0A2540;
  --c-text: #1A2233;
  --c-text-soft: #4A5568;
  --c-text-mute: #8492A6;
  --c-border: #E5E8EE;

  /* 字体 */
  --ff-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
             "Microsoft YaHei", "Source Han Sans CN", "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  --ff-display: "Source Han Sans CN", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  --ff-serif: "Source Han Serif CN", "Noto Serif SC", "Songti SC", "STSong", serif;

  /* 阴影 */
  --sh-sm: 0 2px 6px rgba(10,37,64,.06);
  --sh-md: 0 6px 20px rgba(10,37,64,.08);
  --sh-lg: 0 12px 40px rgba(10,37,64,.12);
  --sh-xl: 0 24px 60px rgba(10,37,64,.18);

  /* 圆角 */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-pill: 999px;

  /* 容器 */
  --container: 1200px;

  /* 动效 */
  --ease: cubic-bezier(.22,.61,.36,1);
  --d-fast: .2s;
  --d-base: .35s;
  --d-slow: .6s;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--ff-sans);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}
img, svg, video { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; transition: color var(--d-fast) var(--ease); }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4,h5,h6 { margin: 0; font-family: var(--ff-display); font-weight: 700; line-height: 1.3; letter-spacing: -.01em; }
p { margin: 0; }

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

/* ============================================
   顶部公告条
   ============================================ */
.topbar {
  background: var(--c-primary-dark);
  color: rgba(255,255,255,.85);
  font-size: 13px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.topbar-inner {
  display: flex; justify-content: space-between; align-items: center;
  height: 38px; gap: 16px;
}
.topbar-left { display: flex; align-items: center; gap: 8px; }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--c-accent); box-shadow: 0 0 8px var(--c-accent); }
.topbar-right { display: flex; gap: 20px; }
.topbar-right a { color: rgba(255,255,255,.85); }
.topbar-right a:hover { color: var(--c-accent); }

/* ============================================
   LOGO
   ============================================ */
.logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; color: var(--c-white);
  font-size: 18px; letter-spacing: .02em;
}
.logo .r-mark { color: var(--c-accent); font-size: 12px; margin-left: 2px; top: -8px; position: relative; }
.logo-sep { color: var(--c-accent); font-weight: 300; opacity: .7; }
.logo-sub { font-size: 14px; font-weight: 500; color: rgba(255,255,255,.85); letter-spacing: .04em; }

/* ============================================
   导航
   ============================================ */
.hero-wrap { background: var(--c-bg-dark); position: relative; overflow: hidden; }
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,37,64,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: all var(--d-base) var(--ease);
}
.nav.scrolled { background: rgba(10,37,64,.96); box-shadow: 0 4px 20px rgba(0,0,0,.15); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 24px;
}
.nav-menu {
  display: flex; align-items: center; gap: 4px;
}
.nav-menu a {
  display: inline-block; padding: 10px 16px;
  color: rgba(255,255,255,.85); font-size: 15px; font-weight: 500;
  border-radius: var(--r-sm);
  transition: all var(--d-fast) var(--ease);
  position: relative;
}
.nav-menu a:hover { color: var(--c-white); background: rgba(255,255,255,.06); }
.nav-menu .nav-cta {
  margin-left: 12px;
  background: var(--c-accent); color: #fff !important;
  padding: 10px 22px; border-radius: var(--r-pill);
  font-weight: 600;
}
.nav-menu .nav-cta:hover { background: var(--c-accent-dark); transform: translateY(-1px); }

.nav-toggle {
  display: none; width: 44px; height: 44px;
  position: relative; border-radius: var(--r-sm);
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: #fff;
  margin: 5px auto; transition: all var(--d-base) var(--ease);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative; min-height: calc(100vh - 110px);
  display: flex; align-items: center;
  padding: 60px 0 80px;
  color: #fff;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse at top right, rgba(255,107,53,.15), transparent 50%),
    radial-gradient(ellipse at bottom left, rgba(0,156,59,.12), transparent 50%),
    linear-gradient(135deg, #0A2540 0%, #061A2E 100%);
}
.hero-shape {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: .4;
  animation: float 8s ease-in-out infinite;
}
.shape-1 { width: 400px; height: 400px; background: var(--c-accent); top: -100px; right: -100px; }
.shape-2 { width: 300px; height: 300px; background: var(--c-brasil-green); bottom: -80px; left: -80px; animation-delay: 2s; }
.shape-3 { width: 200px; height: 200px; background: var(--c-brasil-yellow); top: 50%; left: 50%; animation-delay: 4s; opacity: .15; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
@keyframes float {
  0%,100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(20px,-20px) scale(1.05); }
}
.hero-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center;
}
.hero-content { max-width: 640px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; background: rgba(255,107,53,.15);
  border: 1px solid rgba(255,107,53,.3);
  border-radius: var(--r-pill); font-size: 13px; color: #FFCAB4;
  margin-bottom: 24px;
}
.badge-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-accent); box-shadow: 0 0 12px var(--c-accent); }
.hero-title {
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  line-height: 1.15; margin-bottom: 24px;
  font-weight: 800;
}
.title-gradient {
  background: linear-gradient(135deg, #FF6B35 0%, #FFDF00 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-weight: 800;
}
.hero-subtitle {
  font-size: clamp(15px, 1.4vw, 17px);
  color: rgba(255,255,255,.78); line-height: 1.85;
  margin-bottom: 28px;
}
.hero-keywords { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 36px; }
.kw {
  padding: 6px 14px; background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-pill);
  font-size: 13px; color: rgba(255,255,255,.85);
  transition: all var(--d-fast) var(--ease);
}
.kw:hover { background: rgba(255,107,53,.18); border-color: rgba(255,107,53,.4); color: #fff; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px; font-size: 15px; font-weight: 600;
  border-radius: var(--r-pill); transition: all var(--d-base) var(--ease);
  cursor: pointer; border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary { background: var(--c-accent); color: #fff; }
.btn-primary:hover { background: var(--c-accent-dark); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(255,107,53,.4); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.3); }
.btn-ghost:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.6); }
.btn-light { background: #fff; color: var(--c-primary); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(255,255,255,.25); }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.stat-item .stat-num {
  font-size: 32px; font-weight: 800; color: var(--c-accent);
  line-height: 1; margin-bottom: 6px;
  font-family: var(--ff-display);
}
.stat-item .stat-label { font-size: 13px; color: rgba(255,255,255,.6); }

/* Hero Visual */
.hero-visual {
  position: relative; height: 480px;
}
.visual-card {
  position: absolute; background: #fff; color: var(--c-text);
  border-radius: var(--r-lg); box-shadow: var(--sh-xl);
}
.card-main {
  width: 100%; max-width: 460px; top: 30px; left: 0;
  overflow: hidden;
}
.card-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 12px 16px; background: #F1F3F7; border-bottom: 1px solid #E5E8EE;
}
.card-dot { width: 10px; height: 10px; border-radius: 50%; }
.card-dot.red { background: #FF5F57; }
.card-dot.yellow { background: #FEBC2E; }
.card-dot.green { background: #28C840; }
.card-url { margin-left: auto; font-size: 12px; color: var(--c-text-mute); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.card-body { padding: 24px; }
.card-nav { display: flex; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid #E5E8EE; font-size: 13px; color: var(--c-text-soft); margin-bottom: 20px; }
.card-hero-mini { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.card-h1 { width: 70%; height: 14px; background: linear-gradient(90deg, var(--c-primary), var(--c-primary-light)); border-radius: 4px; }
.card-h2 { width: 50%; height: 14px; background: linear-gradient(90deg, var(--c-accent), var(--c-accent-light)); border-radius: 4px; }
.card-p { width: 90%; height: 8px; background: #E5E8EE; border-radius: 4px; margin-top: 6px; }
.card-p::before { content: ''; display: block; width: 75%; height: 8px; background: #E5E8EE; border-radius: 4px; margin-top: 4px; }
.card-btn { width: 120px; height: 30px; background: var(--c-accent); border-radius: 15px; margin-top: 8px; }
.card-grid-mini { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.card-grid-mini div { aspect-ratio: 1; background: linear-gradient(135deg, #F1F3F7, #E5E8EE); border-radius: 8px; }

.card-float {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; min-width: 200px;
  animation: floatCard 4s ease-in-out infinite;
}
.card-float-1 { top: -10px; right: -20px; animation-delay: 0s; }
.card-float-2 { bottom: 80px; right: -40px; animation-delay: 1.5s; }
.card-float-3 { bottom: 0; left: 0; animation-delay: 3s; }
.float-icon { font-size: 28px; line-height: 1; }
.float-title { font-size: 18px; font-weight: 800; color: var(--c-primary); line-height: 1.2; }
.float-meta { font-size: 12px; color: var(--c-text-mute); margin-top: 2px; }
@keyframes floatCard {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-scroll {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 12px; color: rgba(255,255,255,.5); letter-spacing: .2em;
  z-index: 2;
}
.scroll-arrow { animation: bounce 2s ease-in-out infinite; }
@keyframes bounce {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ============================================
   Section 通用
   ============================================ */
.section {
  padding: 100px 0;
  position: relative;
}
.section-alt { background: var(--c-bg-alt); }
.section-dark { background: var(--c-bg-dark); color: #fff; }
.section-cta {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
  color: #fff;
}
.section-stats { padding: 60px 0; }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.section-eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600;
  color: var(--c-accent); letter-spacing: .2em;
  text-transform: uppercase; margin-bottom: 16px;
}
.section-eyebrow.light { color: #FFB088; }
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 20px;
}
.section-title.light { color: #fff; }
.section-desc {
  font-size: 16px; color: var(--c-text-soft); line-height: 1.85;
}
.section-desc.light { color: rgba(255,255,255,.75); }
.section-foot { text-align: center; margin-top: 48px; }

/* ============================================
   服务优势
   ============================================ */
.adv-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.adv-card {
  background: #fff; padding: 36px 32px;
  border-radius: var(--r-lg);
  border: 1px solid var(--c-border);
  transition: all var(--d-base) var(--ease);
  position: relative; overflow: hidden;
}
.adv-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-brasil-yellow));
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--d-base) var(--ease);
}
.adv-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); border-color: transparent; }
.adv-card:hover::before { transform: scaleX(1); }
.adv-icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(255,107,53,.1), rgba(255,107,53,.05));
  color: var(--c-accent);
  border-radius: var(--r-md); margin-bottom: 20px;
}
.adv-icon svg { width: 28px; height: 28px; }
.adv-card h3 { font-size: 18px; margin-bottom: 12px; }
.adv-card p { color: var(--c-text-soft); font-size: 14.5px; line-height: 1.8; }

/* ============================================
   建站方案
   ============================================ */
.scn-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.scn-card {
  position: relative; padding: 36px 32px;
  background: #fff; border-radius: var(--r-lg);
  border: 1px solid var(--c-border);
  transition: all var(--d-base) var(--ease);
  overflow: hidden;
}
.scn-card::after {
  content: ''; position: absolute; bottom: 0; right: 0;
  width: 120px; height: 120px;
  background: radial-gradient(circle at bottom right, rgba(255,107,53,.08), transparent 70%);
  transition: all var(--d-base) var(--ease);
}
.scn-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); border-color: var(--c-accent); }
.scn-card:hover::after { transform: scale(1.5); }
.scn-num {
  font-size: 13px; font-weight: 700; color: var(--c-accent);
  letter-spacing: .15em; margin-bottom: 12px;
}
.scn-card h3 { font-size: 20px; margin-bottom: 14px; }
.scn-card p { color: var(--c-text-soft); font-size: 14.5px; line-height: 1.8; margin-bottom: 20px; }
.scn-card ul { margin-bottom: 20px; }
.scn-card li {
  position: relative; padding-left: 22px; font-size: 14px;
  color: var(--c-text-soft); margin-bottom: 8px;
}
.scn-card li::before {
  content: '✓'; position: absolute; left: 0; top: 0;
  color: var(--c-accent); font-weight: 700;
}
.scn-link {
  color: var(--c-accent); font-weight: 600; font-size: 14px;
  display: inline-flex; align-items: center; gap: 4px;
  transition: gap var(--d-fast) var(--ease);
}
.scn-link:hover { gap: 8px; }

/* ============================================
   建站流程
   ============================================ */
.process-list {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 16px;
  counter-reset: proc;
}
.process-list li {
  position: relative; padding: 28px 16px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-md);
  transition: all var(--d-base) var(--ease);
  text-align: center;
}
.process-list li:hover {
  background: rgba(255,107,53,.1);
  border-color: rgba(255,107,53,.3);
  transform: translateY(-4px);
}
.process-list li::after {
  content: '→'; position: absolute; right: -16px; top: 50%; transform: translateY(-50%);
  color: var(--c-accent); font-size: 20px; font-weight: 700; z-index: 2;
}
.process-list li:last-child::after { display: none; }
.proc-num {
  display: inline-block;
  font-size: 24px; font-weight: 800; color: var(--c-accent);
  font-family: var(--ff-display); margin-bottom: 12px;
  background: rgba(255,107,53,.1); width: 48px; height: 48px;
  line-height: 48px; border-radius: 50%;
}
.process-list h4 { font-size: 16px; margin-bottom: 8px; color: #fff; }
.process-list p { font-size: 13px; color: rgba(255,255,255,.65); line-height: 1.7; }

/* ============================================
   案例展示
   ============================================ */
.case-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.case-card {
  background: #fff; border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid var(--c-border);
  transition: all var(--d-base) var(--ease);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); }
.case-img {
  position: relative; aspect-ratio: 16/10; overflow: hidden;
  background: linear-gradient(135deg, #F1F3F7, #E5E8EE);
}
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.case-card:hover .case-img img { transform: scale(1.08); }
.case-tag {
  position: absolute; top: 14px; left: 14px;
  padding: 5px 12px; background: rgba(10,37,64,.85);
  color: #fff; font-size: 12px; font-weight: 500;
  border-radius: var(--r-pill); backdrop-filter: blur(4px);
}
.case-info { padding: 22px 24px 26px; }
.case-info h3 { font-size: 18px; margin-bottom: 10px; }
.case-info p { color: var(--c-text-soft); font-size: 14px; line-height: 1.7; margin-bottom: 12px; }
.case-meta { font-size: 12px; color: var(--c-text-mute); letter-spacing: .05em; }

/* ============================================
   关于闫宝龙
   ============================================ */
.about-grid {
  display: grid; grid-template-columns: 380px 1fr; gap: 80px; align-items: center;
}
.about-photo-wrap { position: relative; aspect-ratio: 4/5; }
.about-photo-frame {
  position: relative; z-index: 2;
  width: 100%; aspect-ratio: 4/5;
  border-radius: var(--r-lg); overflow: hidden;
  box-shadow: var(--sh-xl);
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
}
.about-photo-frame img { width: 100%; height: 100%; object-fit: cover; }
.about-photo-deco {
  position: absolute; top: -20px; right: -20px; bottom: 20px; left: 20px;
  border: 2px solid var(--c-accent); border-radius: var(--r-lg);
  z-index: 1;
}
.about-photo-badge {
  position: absolute; top: 30px; right: -30px; z-index: 3;
  background: var(--c-accent); color: #fff;
  width: 110px; height: 110px; border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; box-shadow: var(--sh-lg);
  animation: rotate 12s linear infinite;
}
.about-photo-badge .b-num { font-size: 30px; font-weight: 800; line-height: 1; }
.about-photo-badge .b-lab { font-size: 11px; margin-top: 4px; line-height: 1.3; }
@keyframes rotate {
  0%, 90% { transform: rotate(0); }
  100% { transform: rotate(360deg); }
}
.about-content .section-eyebrow { display: block; margin-bottom: 16px; }
.about-content .section-title { text-align: left; margin-bottom: 20px; }
.about-lead { font-size: 18px; color: var(--c-text); margin-bottom: 16px; line-height: 1.85; font-weight: 500; }
.about-content > p { color: var(--c-text-soft); margin-bottom: 20px; }
.about-content strong { color: var(--c-primary); }
.about-list {
  margin: 28px 0;
  border-left: 3px solid var(--c-accent); padding-left: 20px;
}
.about-list li {
  position: relative; padding: 6px 0 6px 24px;
  color: var(--c-text-soft); font-size: 14.5px;
}
.about-list li::before {
  content: ''; position: absolute; left: -8px; top: 14px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--c-accent); box-shadow: 0 0 0 4px rgba(255,107,53,.2);
}
.about-list strong { color: var(--c-primary); margin-right: 4px; }
.about-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.about-tags span {
  padding: 6px 14px; background: #fff;
  border: 1px solid var(--c-border); border-radius: var(--r-pill);
  font-size: 13px; color: var(--c-text-soft);
}
.about-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.about-cta .btn-ghost { color: var(--c-primary); border-color: var(--c-border); }
.about-cta .btn-ghost:hover { background: var(--c-bg-alt); color: var(--c-primary); border-color: var(--c-primary); }

/* ============================================
   数据统计
   ============================================ */
.stat-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.stat-box {
  background: #fff; padding: 36px 24px;
  border-radius: var(--r-lg);
  text-align: center;
  box-shadow: var(--sh-sm);
  border-top: 3px solid var(--c-accent);
  transition: all var(--d-base) var(--ease);
}
.stat-box:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); }
.stat-num-big {
  font-size: 48px; font-weight: 800;
  color: var(--c-primary);
  font-family: var(--ff-display); line-height: 1; margin-bottom: 10px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-lab { font-size: 14px; color: var(--c-text-soft); }

/* ============================================
   FAQ
   ============================================ */
.faq-list {
  max-width: 980px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.faq-item {
  background: #fff; border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  transition: all var(--d-base) var(--ease);
  overflow: hidden;
}
.faq-item[open] { border-color: var(--c-accent); box-shadow: var(--sh-sm); }
.faq-item summary {
  display: flex; align-items: center; gap: 14px;
  padding: 20px 22px; cursor: pointer;
  font-weight: 600; color: var(--c-primary);
  list-style: none;
  transition: background var(--d-fast) var(--ease);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: var(--c-bg-alt); }
.faq-q {
  flex: 0 0 auto; width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-light));
  color: #fff; font-size: 13px; font-weight: 700;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.faq-t { flex: 1; font-size: 15px; line-height: 1.5; }
.faq-ico {
  flex: 0 0 auto; width: 20px; height: 20px;
  border: 2px solid var(--c-text-mute); border-radius: 50%;
  position: relative; transition: all var(--d-base) var(--ease);
}
.faq-ico::before, .faq-ico::after {
  content: ''; position: absolute;
  background: var(--c-text-mute);
  transition: all var(--d-base) var(--ease);
}
.faq-ico::before { width: 10px; height: 2px; left: 50%; top: 50%; transform: translate(-50%,-50%); }
.faq-ico::after { width: 2px; height: 10px; left: 50%; top: 50%; transform: translate(-50%,-50%); }
.faq-item[open] .faq-ico { border-color: var(--c-accent); transform: rotate(180deg); }
.faq-item[open] .faq-ico::before, .faq-item[open] .faq-ico::after { background: var(--c-accent); }
.faq-item[open] .faq-ico::after { transform: translate(-50%,-50%) scaleY(0); }

.faq-a { padding: 0 22px 22px 68px; color: var(--c-text-soft); font-size: 14.5px; line-height: 1.85; }
.faq-a p { margin-bottom: 10px; }
.faq-a p:last-child { margin-bottom: 0; }
.faq-a ul { margin: 10px 0; padding-left: 0; }
.faq-a li {
  position: relative; padding-left: 18px; margin-bottom: 6px;
}
.faq-a li::before { content: '·'; position: absolute; left: 4px; color: var(--c-accent); font-weight: 700; }
.faq-a code {
  background: var(--c-bg-alt); padding: 2px 6px; border-radius: 4px;
  font-size: 13px; color: var(--c-accent);
}

/* ============================================
   CTA / 联系方式
   ============================================ */
.cta-wrap {
  display: grid; grid-template-columns: 1.4fr .8fr; gap: 60px; align-items: center;
}
.cta-left .section-eyebrow { display: block; margin-bottom: 16px; }
.cta-left .section-title { text-align: left; margin-bottom: 16px; }
.cta-left .section-desc { text-align: left; margin-bottom: 40px; }
.contact-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
  margin-bottom: 32px;
}
.contact-item {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 20px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-md);
  transition: all var(--d-base) var(--ease);
  cursor: pointer;
}
.contact-item:hover {
  background: rgba(255,107,53,.12);
  border-color: var(--c-accent);
  transform: translateX(4px);
}
.ci-icon {
  width: 44px; height: 44px;
  background: rgba(255,107,53,.15);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex: 0 0 auto;
}
.ci-text { flex: 1; }
.ci-label { font-size: 12px; color: rgba(255,255,255,.6); margin-bottom: 2px; }
.ci-value { font-size: 16px; color: #fff; font-weight: 600; }

.cta-right { display: flex; justify-content: center; }
.qr-card {
  background: #fff; padding: 24px;
  border-radius: var(--r-lg); text-align: center;
  box-shadow: var(--sh-xl);
  max-width: 280px;
}
.qr-img {
  width: 200px; height: 200px;
  margin: 0 auto 16px;
  border-radius: var(--r-md);
  overflow: hidden;
  background: #f1f1f1;
}
.qr-img img { width: 100%; height: 100%; object-fit: contain; }
.qr-card p { font-size: 13px; color: var(--c-text-soft); line-height: 1.7; }

/* ============================================
   底部 Footer
   ============================================ */
.footer {
  background: #061A2E; color: rgba(255,255,255,.7);
  padding: 60px 0 0;
}
.footer-top {
  display: grid; grid-template-columns: 1.5fr 1fr 1.4fr 1.4fr; gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-tag { font-size: 14px; line-height: 1.8; margin-bottom: 16px; }
.footer-contact-mini { display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.footer-contact-mini span { color: rgba(255,255,255,.7); }

.footer-col h4 {
  color: #fff; font-size: 15px; margin-bottom: 18px;
  font-weight: 600; letter-spacing: .05em;
}
.footer-col li { margin-bottom: 10px; font-size: 13.5px; }
.footer-col a { color: rgba(255,255,255,.6); transition: color var(--d-fast) var(--ease); }
.footer-col a:hover { color: var(--c-accent); padding-left: 4px; }
.footer-col a.active { color: var(--c-accent); font-weight: 600; }
.footer-services { columns: 2; column-gap: 16px; }
.footer-services li { break-inside: avoid; }

.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 0; flex-wrap: wrap; gap: 12px;
  font-size: 13px;
}
.fb-left, .fb-right { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.fb-left a, .fb-right a { color: rgba(255,255,255,.6); }
.fb-left a:hover, .fb-right a:hover { color: var(--c-accent); }
.beian-icon { width: 14px; height: 14px; display: inline-block; vertical-align: -2px; margin-right: 4px; }

/* ============================================
   浮动操作按钮
   ============================================ */
.floating {
  position: fixed; right: 20px; bottom: 24px;
  display: flex; flex-direction: column; gap: 10px; z-index: 90;
}
.floating-btn {
  width: 54px; height: 54px;
  background: var(--c-accent); color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  box-shadow: var(--sh-lg);
  transition: all var(--d-base) var(--ease);
  position: relative; overflow: hidden;
  font-size: 20px;
}
.floating-btn:hover { transform: scale(1.08); background: var(--c-accent-dark); }
.floating-btn .fb-text {
  position: absolute; right: 64px;
  background: var(--c-primary); color: #fff;
  padding: 6px 12px; border-radius: var(--r-sm);
  font-size: 13px; white-space: nowrap;
  opacity: 0; transform: translateX(10px);
  transition: all var(--d-base) var(--ease);
  pointer-events: none;
}
.floating-btn:hover .fb-text { opacity: 1; transform: translateX(0); }
.floating-top { background: var(--c-primary); opacity: 0; pointer-events: none; }
.floating-top.show { opacity: 1; pointer-events: auto; }

/* ============================================
   动画 - 入场
   ============================================ */
[data-anim] {
  opacity: 0; transform: translateY(30px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
[data-anim].in {
  opacity: 1; transform: translateY(0);
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1100px) {
  .adv-grid, .scn-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
  .process-list { grid-template-columns: repeat(4, 1fr); }
  .process-list li:nth-child(4)::after { display: none; }
  .process-list li:nth-child(4),
  .process-list li:nth-child(5),
  .process-list li:nth-child(6),
  .process-list li:nth-child(7) { grid-column: span 1; }
  .process-list { grid-template-columns: repeat(4, 1fr); }
  .process-list li:nth-child(n+5) { grid-column: span 1; }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-col:nth-child(4) { grid-column: 1 / -1; }
  .hero-visual { height: 420px; }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { height: 380px; max-width: 500px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; gap: 50px; }
  .about-photo-wrap { max-width: 340px; margin: 0 auto; }
  .about-content .section-title, .cta-left .section-title { text-align: center; }
  .about-content .section-eyebrow, .cta-left .section-eyebrow { text-align: center; }
  .cta-wrap { grid-template-columns: 1fr; }
  .section { padding: 70px 0; }
}

@media (max-width: 768px) {
  .container { padding: 0 18px; }
  .topbar-inner { font-size: 12px; }
  .topbar-right { display: none; }
  .nav-menu {
    position: fixed; top: 72px; right: -100%; width: 80%; max-width: 320px;
    height: calc(100vh - 72px);
    background: var(--c-primary-dark);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 20px;
    transition: right var(--d-base) var(--ease);
    box-shadow: -10px 0 30px rgba(0,0,0,.2);
  }
  .nav-menu.open { right: 0; }
  .nav-menu li { width: 100%; }
  .nav-menu a { display: block; padding: 14px 18px; font-size: 15px; border-radius: 8px; }
  .nav-menu .nav-cta { margin: 12px 0 0; text-align: center; }
  .nav-toggle { display: block; }
  .logo-sub { display: none; }
  .hero { min-height: auto; padding: 50px 0 60px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .stat-item .stat-num { font-size: 26px; }
  .adv-grid, .scn-grid, .case-grid { grid-template-columns: 1fr; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .process-list li::after { display: none; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-num-big { font-size: 36px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-col:nth-child(3), .footer-col:nth-child(4) { grid-column: span 1; }
  .faq-list { grid-template-columns: 1fr; }
  .floating { right: 14px; bottom: 14px; }
  .floating-btn { width: 48px; height: 48px; }
  .section-head { margin-bottom: 40px; }
}

@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-actions .btn { width: 100%; }
  .hero-keywords { gap: 6px; }
  .kw { font-size: 12px; padding: 5px 12px; }
  .process-list { grid-template-columns: 1fr; }
  .scn-card, .adv-card { padding: 28px 24px; }
}

/* ============================================
   可访问性
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 2px;
}

::selection { background: var(--c-accent); color: #fff; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--c-bg-alt); }
::-webkit-scrollbar-thumb { background: var(--c-primary-light); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-accent); }