/* =========================================
   闫宝龙短视频拍摄 · 主样式表
   Style: 影视级专业感 · 深空黑 + 暗金 + 极光蓝
   ========================================= */

/* ---------- CSS 变量 ---------- */
:root {
  --color-bg: #0A0A0A;
  --color-bg-2: #111111;
  --color-bg-3: #1A1A1A;
  --color-surface: #161616;
  --color-line: rgba(255, 255, 255, 0.08);
  --color-line-strong: rgba(255, 255, 255, 0.18);
  --color-text: #E6E6E6;
  --color-text-2: #B5B5B5;
  --color-text-3: #7E7E7E;
  --color-gold: #C9A86A;
  --color-gold-2: #E8C988;
  --color-gold-soft: rgba(201, 168, 106, 0.16);
  --color-cyan: #00D9FF;
  --color-cyan-2: #5BEAFF;
  --color-white: #FFFFFF;
  --color-success: #4ADE80;
  --color-danger: #F87171;

  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-serif: "Noto Serif SC", "STSong", "SimSun", serif;
  --font-display: "Bebas Neue", "Noto Serif SC", serif;

  --container: 1280px;
  --container-wide: 1440px;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.25s var(--ease); }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul, ol { list-style: none; }
sup { font-size: 0.5em; vertical-align: super; }
em { font-style: normal; }
strong { font-weight: 700; color: var(--color-white); }

::selection { background: var(--color-gold); color: var(--color-bg); }

/* ---------- 通用 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-gold-2) 0%, var(--color-gold) 50%, var(--color-cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.section {
  position: relative;
  padding: 120px 0;
  background: var(--color-bg);
}
.section + .section { border-top: 1px solid var(--color-line); }

.section-head {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 80px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--color-gold);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-white);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.section-title em {
  color: var(--color-gold);
  font-style: normal;
  margin: 0 8px;
  font-weight: 400;
}
.section-desc {
  font-size: 17px;
  color: var(--color-text-2);
  line-height: 1.8;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
  position: relative;
  overflow: hidden;
  transition: all 0.35s var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-2) 100%);
  color: var(--color-bg);
  font-weight: 700;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-gold-2) 0%, var(--color-gold) 100%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  z-index: -1;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px -10px var(--color-gold); }
.btn-primary:hover::before { opacity: 1; }
.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-line-strong);
}
.btn-ghost:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  transform: translateY(-2px);
}
.btn-block { width: 100%; }

/* ---------- 顶部公告条 ---------- */
.topbar {
  background: linear-gradient(90deg, var(--color-bg) 0%, #1A1A1A 50%, var(--color-bg) 100%);
  border-bottom: 1px solid var(--color-line);
  font-size: 13px;
  color: var(--color-text-2);
  position: relative;
  z-index: 110;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 32px;
  gap: 16px;
}
.topbar-text { letter-spacing: 0.05em; }
.topbar-tel {
  color: var(--color-gold-2);
  font-weight: 700;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.topbar-tel:hover { color: var(--color-gold); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--color-bg);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.55;
  animation: orbFloat 16s ease-in-out infinite;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--color-gold) 0%, transparent 70%);
  top: -200px; right: -200px;
  opacity: 0.25;
}
.hero-orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--color-cyan) 0%, transparent 70%);
  bottom: -200px; left: -150px;
  opacity: 0.18;
  animation-delay: -5s;
}
.hero-orb-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #5BEAFF 0%, transparent 70%);
  top: 40%; left: 50%;
  opacity: 0.10;
  animation-delay: -10s;
}
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.1); }
  66% { transform: translate(-30px, 30px) scale(0.95); }
}
.hero-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' /></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/></svg>");
  opacity: 0.05;
  pointer-events: none;
}

/* ---------- 导航 ---------- */
.nav {
  position: relative;
  z-index: 100;
  padding: 24px 0;
  transition: all 0.3s var(--ease);
}
.nav.is-sticky {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 900;
  color: var(--color-white);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.logo-mark { display: inline-flex; align-items: baseline; }
.logo-r {
  font-size: 0.5em;
  color: var(--color-gold);
  margin-left: 2px;
  font-weight: 700;
}
.logo-sep { color: var(--color-text-3); font-weight: 300; }
.logo-text {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-2);
  letter-spacing: 0.1em;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
}
.nav-link {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--color-text-2);
  font-weight: 500;
  letter-spacing: 0.05em;
  position: relative;
  transition: color 0.3s var(--ease);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: calc(100% - 28px);
  height: 1px;
  background: var(--color-gold);
  transform-origin: center;
  transition: transform 0.3s var(--ease);
}
.nav-link:hover, .nav-link.active {
  color: var(--color-white);
}
.nav-link:hover::after, .nav-link.active::after {
  transform: translateX(-50%) scaleX(1);
}
.nav-link.nav-cta {
  margin-left: 8px;
  padding: 10px 20px;
  background: var(--color-gold);
  color: var(--color-bg);
  border-radius: var(--radius-sm);
  font-weight: 700;
}
.nav-link.nav-cta::after { display: none; }
.nav-link.nav-cta:hover { background: var(--color-gold-2); color: var(--color-bg); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  height: 28px;
  padding: 4px 0;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  transition: all 0.3s var(--ease);
  border-radius: 2px;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero 内容 ---------- */
.hero-content {
  position: relative;
  z-index: 10;
  padding: 80px 0 100px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border: 1px solid var(--color-line-strong);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-2);
  letter-spacing: 0.2em;
  margin-bottom: 32px;
  background: rgba(255, 255, 255, 0.02);
}
.hero-tag-dot {
  width: 6px; height: 6px;
  background: var(--color-success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-success);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(40px, 6.4vw, 88px);
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}
.hero-line {
  display: block;
  overflow: hidden;
}
.hero-line + .hero-line { margin-top: 8px; }
.hero-line-2 { color: var(--color-text-2); }
.reveal-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
  animation: wordUp 1s var(--ease-out) forwards;
  margin-right: 0.25em;
}
.reveal-word:nth-child(1) { animation-delay: 0.1s; }
.reveal-word:nth-child(2) { animation-delay: 0.2s; }
.reveal-word:nth-child(3) { animation-delay: 0.3s; }
.reveal-word:nth-child(4) { animation-delay: 0.4s; }
.reveal-word:nth-child(5) { animation-delay: 0.5s; }
.reveal-word:nth-child(6) { animation-delay: 0.6s; }
@keyframes wordUp {
  to { opacity: 1; transform: translateY(0); }
}
.hero-subtitle {
  max-width: 760px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--color-text-2);
  margin-bottom: 40px;
}
.hero-subtitle strong { color: var(--color-gold-2); font-weight: 500; }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 80px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 40px 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 48px;
}
.hero-stat {
  text-align: left;
  position: relative;
  padding-left: 20px;
}
.hero-stat::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--color-gold);
}
.hero-stat-num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 400;
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.hero-stat-label {
  font-size: 13px;
  color: var(--color-text-3);
  letter-spacing: 0.1em;
}
.hero-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.kw {
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-line);
  border-radius: 100px;
  font-size: 13px;
  color: var(--color-text-2);
  letter-spacing: 0.05em;
  transition: all 0.3s var(--ease);
}
.kw:hover {
  background: var(--color-gold-soft);
  border-color: var(--color-gold);
  color: var(--color-gold-2);
}
.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--color-text-3);
  font-size: 11px;
  letter-spacing: 0.3em;
}
.hero-scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--color-gold), transparent);
  position: relative;
  overflow: hidden;
}
.hero-scroll-line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-gold);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

/* ---------- 通用 reveal 动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 服务板块 ---------- */
.section-services { background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-2) 100%); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  position: relative;
  padding: 40px 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.4s var(--ease-out);
  transition-delay: var(--delay, 0s);
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-gold);
  background: var(--color-bg-3);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6);
}
.service-card:hover::before { opacity: 1; }
.service-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 400;
  color: var(--color-bg-3);
  line-height: 1;
  transition: color 0.4s var(--ease);
  user-select: none;
}
.service-card:hover .service-num { color: var(--color-gold-soft); }
.service-icon {
  width: 64px;
  height: 64px;
  color: var(--color-gold);
  margin-bottom: 24px;
  transition: all 0.4s var(--ease);
}
.service-icon svg { width: 100%; height: 100%; }
.service-card:hover .service-icon {
  transform: scale(1.1) rotate(-3deg);
  color: var(--color-gold-2);
}
.service-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
.service-desc {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
  margin-bottom: 20px;
}
.service-list {
  border-top: 1px dashed var(--color-line);
  padding-top: 16px;
}
.service-list li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  color: var(--color-text-3);
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}
.service-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 10px;
  width: 6px; height: 1px;
  background: var(--color-gold);
}
.service-list li:last-child { margin-bottom: 0; }

/* ---------- 服务流程 ---------- */
.section-process { background: var(--color-bg-2); }
.process-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}
.process-line {
  position: absolute;
  top: 28px;
  left: 5%;
  right: 5%;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--color-line-strong) 0 6px, transparent 6px 12px);
  z-index: 0;
}
.process-step {
  position: relative;
  text-align: center;
  z-index: 1;
  transition-delay: var(--delay, 0s);
}
.process-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-gold);
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.05em;
  position: relative;
  transition: all 0.4s var(--ease);
}
.process-dot::after {
  content: '';
  position: absolute;
  inset: -8px;
  border: 1px solid var(--color-gold-soft);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.process-step:hover .process-dot {
  background: var(--color-gold);
  color: var(--color-bg);
  transform: scale(1.05);
}
.process-step:hover .process-dot::after { opacity: 1; }
.process-step h4 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}
.process-step p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
  padding: 0 8px;
}

/* ---------- 拍摄场景 ---------- */
.scenes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 280px;
  gap: 20px;
}
.scene-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-line);
  transition: all 0.4s var(--ease-out);
  transition-delay: var(--delay, 0s);
}
.scene-card-large { grid-column: span 2; }
.scene-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s var(--ease);
}
.scene-card:hover .scene-bg { transform: scale(1.08); }
.scene-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(0, 0, 0, 0.85) 100%);
}
.scene-bg-1 { background-image: linear-gradient(135deg, #1a1a1a 0%, #2a1810 50%, #0a0a0a 100%); }
.scene-bg-2 { background-image: linear-gradient(135deg, #0a1a1a 0%, #103040 50%, #050a15 100%); }
.scene-bg-3 { background-image: linear-gradient(135deg, #1a0a1a 0%, #301040 50%, #0a0515 100%); }
.scene-bg-4 { background-image: linear-gradient(135deg, #1a1505 0%, #302810 50%, #0a0a05 100%); }
.scene-bg-5 { background-image: linear-gradient(135deg, #0a1515 0%, #102a2a 50%, #050a0a 100%); }
.scene-bg-6 { background-image: linear-gradient(135deg, #15101a 0%, #251540 50%, #0a0510 100%); }
.scene-content {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 32px;
  z-index: 2;
}
.scene-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-gold-soft);
  border: 1px solid var(--color-gold);
  border-radius: 100px;
  font-size: 12px;
  color: var(--color-gold-2);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.scene-content h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.scene-content p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.6;
}
.scene-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-gold);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.6);
}

/* ---------- 案例 ---------- */
.section-cases { background: var(--color-bg); }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.4s var(--ease-out);
  transition-delay: var(--delay, 0s);
}
.case-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-gold);
}
.case-thumb {
  position: relative;
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, #1a1a1a 0%, #2a1810 50%, #0a0a0a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 80px;
  letter-spacing: 0.1em;
  overflow: hidden;
}
.case-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, transparent 0 8px, rgba(201, 168, 106, 0.04) 8px 9px);
}
.case-thumb::after {
  content: attr(data-num);
  position: absolute;
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 64px;
  letter-spacing: 0.1em;
  opacity: 0.4;
  z-index: 1;
}
.case-thumb-2 { background: linear-gradient(135deg, #0a1a1a 0%, #103040 50%, #050a15 100%); }
.case-thumb-3 { background: linear-gradient(135deg, #1a0a1a 0%, #301040 50%, #0a0515 100%); }
.case-thumb-4 { background: linear-gradient(135deg, #1a1505 0%, #302810 50%, #0a0a05 100%); }
.case-thumb-5 { background: linear-gradient(135deg, #0a1515 0%, #102a2a 50%, #050a0a 100%); }
.case-thumb-6 { background: linear-gradient(135deg, #15101a 0%, #251540 50%, #0a0510 100%); }
.case-info {
  padding: 24px;
}
.case-tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--color-gold-soft);
  color: var(--color-gold-2);
  border-radius: 100px;
  font-size: 11px;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.case-info h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
  line-height: 1.4;
}
.case-info p {
  font-size: 13px;
  color: var(--color-text-2);
  line-height: 1.6;
}

/* ---------- 优势 ---------- */
.section-advantages { background: var(--color-bg-2); }
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.advantage-item {
  text-align: center;
  padding: 40px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: all 0.4s var(--ease-out);
  transition-delay: var(--delay, 0s);
}
.advantage-item:hover {
  transform: translateY(-6px);
  border-color: var(--color-gold);
  background: var(--color-bg-3);
}
.advantage-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  padding: 16px;
  background: var(--color-gold-soft);
  border: 1px solid var(--color-gold);
  border-radius: 50%;
  color: var(--color-gold-2);
  transition: all 0.4s var(--ease);
}
.advantage-icon svg { width: 100%; height: 100%; }
.advantage-item:hover .advantage-icon {
  background: var(--color-gold);
  color: var(--color-bg);
  transform: rotateY(180deg);
}
.advantage-item h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}
.advantage-item p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
}

/* ---------- 关于闫宝龙 ---------- */
.section-about { background: var(--color-bg); }
.about-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 80px;
  align-items: start;
}
.about-photo {
  position: sticky;
  top: 120px;
}
.about-photo-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.5);
}
.about-photo-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.4) 100%);
  z-index: 1;
}
.about-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05) saturate(1.1);
}
.about-photo-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  z-index: 2;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-gold);
  border-radius: var(--radius);
  padding: 16px 20px;
  text-align: left;
}
.about-photo-badge span {
  display: block;
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--color-gold-2);
  line-height: 1;
  letter-spacing: 0.05em;
}
.about-photo-badge span small {
  font-size: 16px;
  color: var(--color-gold);
  margin-left: 2px;
}
.about-photo-badge em {
  display: block;
  font-size: 12px;
  color: var(--color-text-2);
  margin-top: 4px;
  font-style: normal;
  letter-spacing: 0.2em;
}
.about-signature {
  margin-top: 20px;
  text-align: center;
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--color-text-3);
  letter-spacing: 0.3em;
}
.about-content .section-eyebrow { text-align: left; }
.about-content .section-title { text-align: left; margin-bottom: 32px; }
.about-content p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text-2);
  margin-bottom: 20px;
}
.about-lead {
  font-size: 17px !important;
  color: var(--color-white) !important;
  font-weight: 500;
  border-left: 2px solid var(--color-gold);
  padding-left: 16px;
  margin-bottom: 28px !important;
}
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0;
}
.about-tags li {
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-line);
  border-radius: 100px;
  font-size: 13px;
  color: var(--color-text-2);
  letter-spacing: 0.05em;
  transition: all 0.3s var(--ease);
}
.about-tags li:hover {
  background: var(--color-gold-soft);
  border-color: var(--color-gold);
  color: var(--color-gold-2);
}
.about-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 28px 0;
  margin-top: 32px;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}
.about-metric {
  text-align: center;
  position: relative;
}
.about-metric + .about-metric::before {
  content: '';
  position: absolute;
  left: -10px; top: 20%; bottom: 20%;
  width: 1px;
  background: var(--color-line);
}
.about-metric-num {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--color-gold-2);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.about-metric-label {
  font-size: 12px;
  color: var(--color-text-3);
  letter-spacing: 0.15em;
}

/* ---------- 价格 ---------- */
.section-pricing { background: var(--color-bg-2); }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 48px 36px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: all 0.4s var(--ease-out);
  transition-delay: var(--delay, 0s);
}
.pricing-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-gold);
}
.pricing-card-featured {
  background: linear-gradient(180deg, var(--color-bg-3) 0%, #1f1810 100%);
  border: 1px solid var(--color-gold);
  transform: scale(1.04);
  z-index: 2;
  box-shadow: 0 30px 60px -20px rgba(201, 168, 106, 0.2);
}
.pricing-card-featured:hover { transform: scale(1.04) translateY(-8px); }
.pricing-flag {
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 20px;
  background: var(--color-gold);
  color: var(--color-bg);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.pricing-name {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 4px;
  letter-spacing: 0.05em;
}
.pricing-sub {
  font-size: 13px;
  color: var(--color-text-3);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}
.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px dashed var(--color-line);
}
.pricing-currency { font-size: 18px; color: var(--color-gold-2); }
.pricing-amount {
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--color-gold-2);
  line-height: 1;
  letter-spacing: 0.02em;
}
.pricing-unit { font-size: 13px; color: var(--color-text-3); }
.pricing-features {
  flex: 1;
  margin-bottom: 32px;
}
.pricing-features li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  color: var(--color-text-2);
  margin-bottom: 12px;
  line-height: 1.6;
}
.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0; top: 0;
  color: var(--color-gold);
  font-weight: 700;
}

/* ---------- FAQ ---------- */
.section-faq { background: var(--color-bg); }
.faq-list {
  max-width: 900px;
  margin: 0 auto;
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  transition: all 0.3s var(--ease);
}
.faq-item[open] {
  border-color: var(--color-gold);
  background: var(--color-bg-3);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px;
  cursor: pointer;
  list-style: none;
  gap: 16px;
  transition: background 0.3s var(--ease);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: rgba(255, 255, 255, 0.02); }
.faq-q {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
  flex: 1;
}
.faq-icon {
  position: relative;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border: 1px solid var(--color-gold);
  border-radius: 50%;
  transition: all 0.3s var(--ease);
}
.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background: var(--color-gold);
  transition: all 0.3s var(--ease);
}
.faq-icon::before {
  left: 6px; right: 6px;
  top: 50%;
  height: 1.5px;
  transform: translateY(-50%);
}
.faq-icon::after {
  top: 6px; bottom: 6px;
  left: 50%;
  width: 1.5px;
  transform: translateX(-50%);
}
.faq-item[open] .faq-icon {
  background: var(--color-gold);
  transform: rotate(180deg);
}
.faq-item[open] .faq-icon::before, .faq-item[open] .faq-icon::after {
  background: var(--color-bg);
}
.faq-item[open] .faq-icon::after { transform: translateX(-50%) scaleY(0); }
.faq-a {
  padding: 0 28px 28px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-text-2);
  border-top: 1px solid var(--color-line);
  padding-top: 20px;
}
.faq-a p strong { color: var(--color-gold-2); font-weight: 500; }

/* ---------- 联系方式 ---------- */
.section-contact {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-2) 100%);
  position: relative;
  overflow: hidden;
}
.section-contact::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 64px;
  align-items: center;
}
.contact-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.contact-card {
  padding: 32px 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: all 0.4s var(--ease-out);
}
.contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-gold);
  background: var(--color-bg-3);
}
.contact-card-icon {
  font-size: 28px;
  margin-bottom: 16px;
}
.contact-card-label {
  font-size: 12px;
  color: var(--color-text-3);
  letter-spacing: 0.2em;
  margin-bottom: 8px;
}
.contact-card-value {
  display: block;
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--color-gold-2);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
  word-break: break-all;
}
.contact-card:hover .contact-card-value { color: var(--color-gold); }
.contact-card-tip {
  font-size: 12px;
  color: var(--color-text-3);
  letter-spacing: 0.05em;
}
.contact-qr {
  text-align: center;
}
.contact-qr-frame {
  display: inline-block;
  padding: 20px;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
}
.contact-qr-frame img {
  width: 280px;
  height: 280px;
  display: block;
}
.contact-qr-tip {
  margin-top: 16px;
  font-size: 14px;
  color: var(--color-text-2);
  letter-spacing: 0.1em;
}

/* ---------- 友情链接 ---------- */
.section-links { background: var(--color-bg-2); }
.links-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}
.links-group {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: border-color 0.3s var(--ease);
}
.links-group:hover { border-color: var(--color-gold); }
.links-group h4 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-gold-2);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
  letter-spacing: 0.1em;
}
.links-group a {
  display: block;
  font-size: 13px;
  color: var(--color-text-2);
  padding: 6px 0;
  letter-spacing: 0.05em;
  transition: all 0.25s var(--ease);
  position: relative;
  padding-left: 12px;
}
.links-group a::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--color-gold);
  opacity: 0;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.links-group a:hover {
  color: var(--color-gold-2);
  padding-left: 16px;
}
.links-group a:hover::before {
  opacity: 1;
  transform: translateX(2px);
}

/* ---------- 底部 ---------- */
.footer {
  background: #050505;
  border-top: 1px solid var(--color-line);
  padding: 60px 0 30px;
}
.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 24px;
}
.footer-brand .logo-footer { margin-bottom: 12px; }
.footer-slogan {
  font-size: 13px;
  color: var(--color-text-3);
  letter-spacing: 0.05em;
  max-width: 480px;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-2);
  text-align: right;
}
.footer-contact a { transition: color 0.25s var(--ease); }
.footer-contact a:hover { color: var(--color-gold-2); }
.footer-bottom {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-3);
  letter-spacing: 0.05em;
  line-height: 2;
}
.footer-bottom a {
  color: var(--color-text-2);
  border-bottom: 1px dotted var(--color-text-3);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.footer-bottom a:hover { color: var(--color-gold-2); border-color: var(--color-gold); }

/* ---------- 浮动按钮 ---------- */
.floating {
  position: fixed;
  right: 20px;
  bottom: 80px;
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.floating.is-show {
  opacity: 1;
  transform: translateY(0);
}
.float-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(20, 20, 20, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-line);
  border-radius: 50%;
  color: var(--color-text-2);
  transition: all 0.3s var(--ease);
}
.float-item svg { width: 22px; height: 22px; }
.float-item span { font-size: 11px; margin-top: 2px; letter-spacing: 0.1em; }
.float-item:hover {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-bg);
  transform: scale(1.1);
}
.float-top { opacity: 0.5; }
.float-top:hover { opacity: 1; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .section { padding: 80px 0; }
  .section-head { margin-bottom: 60px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-timeline { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-line { display: none; }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .scenes-grid { grid-template-columns: repeat(2, 1fr); }
  .scene-card-large { grid-column: span 1; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .pricing-card-featured { transform: scale(1); }
  .pricing-card-featured:hover { transform: translateY(-8px); }
  .links-grid { grid-template-columns: repeat(3, 1fr); }
  .about-grid { grid-template-columns: 280px 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-info { grid-template-columns: repeat(2, 1fr); }
  .contact-qr-frame img { width: 220px; height: 220px; }
  .nav-menu { gap: 0; }
  .nav-link { padding: 8px 10px; font-size: 13px; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 60px 0; }
  .section-head { margin-bottom: 40px; }
  .section-title { font-size: 28px; }
  .section-desc { font-size: 15px; }

  /* 顶部公告 */
  .topbar-text { display: none; }
  .topbar-inner { justify-content: center; }

  /* 导航 */
  .nav-inner { gap: 16px; }
  .nav-menu {
    position: fixed;
    top: 64px;
    right: 0;
    width: 75%;
    max-width: 320px;
    height: calc(100vh - 64px);
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--color-line);
    flex-direction: column;
    align-items: stretch;
    padding: 32px 24px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    overflow-y: auto;
  }
  .nav-menu.is-open { transform: translateX(0); }
  .nav-link {
    padding: 16px 12px;
    font-size: 15px;
    border-bottom: 1px solid var(--color-line);
    border-radius: 0;
  }
  .nav-link::after { display: none; }
  .nav-link.nav-cta {
    margin-top: 12px;
    text-align: center;
    border-radius: var(--radius-sm);
  }
  .nav-toggle { display: flex; }

  /* Hero */
  .hero { min-height: 90vh; }
  .hero-content { padding: 50px 0 80px; }
  .hero-title { font-size: 38px; }
  .hero-subtitle { font-size: 15px; }
  .hero-actions { flex-direction: column; margin-bottom: 60px; }
  .hero-actions .btn { width: 100%; }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    padding: 24px 0;
  }
  .hero-stat-num { font-size: 32px; }
  .hero-keywords { gap: 6px; }
  .kw { font-size: 12px; padding: 4px 12px; }
  .hero-scroll { display: none; }

  /* 服务 */
  .services-grid { grid-template-columns: 1fr; gap: 16px; }
  .service-card { padding: 32px 24px; }
  .service-num { font-size: 42px; }

  /* 流程 */
  .process-timeline { grid-template-columns: 1fr; gap: 32px; }
  .process-dot { width: 48px; height: 48px; font-size: 18px; }

  /* 场景 */
  .scenes-grid { grid-template-columns: 1fr; grid-auto-rows: 220px; }
  .scene-card-large { grid-column: span 1; }
  .scene-content { padding: 20px; }
  .scene-content h3 { font-size: 18px; }

  /* 案例 */
  .cases-grid { grid-template-columns: 1fr; }

  /* 优势 */
  .advantages-grid { grid-template-columns: 1fr; }

  /* 关于 */
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-photo { position: static; max-width: 320px; margin: 0 auto; }
  .about-content .section-eyebrow,
  .about-content .section-title { text-align: center; }
  .about-lead { text-align: left; }
  .about-metrics { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .about-metric-num { font-size: 28px; }

  /* FAQ */
  .faq-item summary { padding: 18px 20px; }
  .faq-q { font-size: 15px; }
  .faq-a { padding: 0 20px 20px; font-size: 14px; }

  /* 联系方式 */
  .contact-info { grid-template-columns: 1fr; }
  .contact-card-value { font-size: 22px; }
  .contact-qr-frame img { width: 200px; height: 200px; }

  /* 友链 */
  .links-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .links-group { padding: 20px 16px; }

  /* 底部 */
  .footer-top { flex-direction: column; }
  .footer-contact { text-align: left; }

  /* 浮动 */
  .floating { right: 12px; bottom: 70px; }
  .float-item { width: 48px; height: 48px; }
  .float-item svg { width: 18px; height: 18px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 32px; }
  .hero-stat-num { font-size: 28px; }
  .section-title { font-size: 24px; }
  .nav-menu { width: 100%; }
  .topbar-tel { font-size: 12px; }
}

/* ---------- 减少动画偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .reveal-word { opacity: 1; transform: none; animation: none; }
}