/* ============================================================
   红影AI · 多页官网
   深色科技 + 红金 · 纯静态实现
   ============================================================ */

:root {
  --ink: #0a0a0c;
  --ink-2: #101013;
  --ink-3: #16161b;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --red: #e23a34;
  --red-bright: #f05048;
  --red-deep: #8c1d1a;
  --gold: #d9b36c;
  --gold-soft: #f0d9a8;
  --text: #f3f0ea;
  --muted: #a9a39a;
  --muted-dim: #7d786f;
  --font-display: "Noto Serif SC", "Songti SC", "STZhongsong", "SimSun", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  --font-latin: "Cinzel", "Bodoni MT", "Didot", "Times New Roman", serif;
  --container: 1200px;
  --ease: cubic-bezier(0.22, 0.7, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(226, 58, 52, 0.55); color: #fff; }

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

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

/* 颗粒质感 */
.grain {
  position: fixed;
  inset: 0;
  z-index: 40;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.9'/%3E%3C/svg%3E");
}

.skip-link {
  position: absolute;
  top: -60px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--gold);
  color: #14100a;
  font-size: 14px;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ============================================================
   通用组件
   ============================================================ */

.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-latin);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 26px;
}
.eyebrow .num {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  height: 22px;
  padding: 0 8px;
  border: 1px solid rgba(217, 179, 108, 0.45);
  border-radius: 1px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold-soft);
}
.eyebrow .sep {
  width: 34px;
  height: 1px;
  background: linear-gradient(90deg, rgba(217, 179, 108, 0.7), transparent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.35s var(--ease), border-color 0.35s var(--ease), color 0.35s var(--ease);
  white-space: nowrap;
}
.btn .arrow { font-size: 17px; line-height: 1; transition: transform 0.35s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

.btn-primary {
  background: linear-gradient(135deg, #c22a24 0%, #e23a34 55%, #ef5a4f 100%);
  color: #fff;
  box-shadow: 0 12px 34px rgba(194, 42, 36, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 44px rgba(226, 58, 52, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.btn-ghost {
  border-color: rgba(217, 179, 108, 0.42);
  color: var(--gold-soft);
  background: rgba(217, 179, 108, 0.02);
}
.btn-ghost:hover {
  background: rgba(217, 179, 108, 0.09);
  border-color: rgba(217, 179, 108, 0.75);
  transform: translateY(-2px);
}

.btn-sm { padding: 11px 22px; font-size: 13.5px; }

/* 滚动揭示 */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ============================================================
   顶部导航
   ============================================================ */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10, 10, 12, 0.78);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line);
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 78px;
}

.brand { display: inline-flex; align-items: center; gap: 13px; flex-shrink: 0; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 3px;
  background: linear-gradient(145deg, #e23a34 0%, #a3211c 62%, #6f1512 100%);
  color: #f6e3bd;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  box-shadow: 0 8px 22px rgba(162, 33, 28, 0.35), inset 0 0 0 1px rgba(240, 217, 168, 0.28);
  position: relative;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid rgba(240, 217, 168, 0.22);
  border-radius: 1px;
  pointer-events: none;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text);
}
.brand-text strong span { color: var(--gold); font-family: var(--font-latin); font-weight: 500; letter-spacing: 0.02em; }
.brand-text small {
  margin-top: 5px;
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--muted-dim);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}
.nav-links a {
  position: relative;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.05em;
  padding: 6px 0;
  transition: color 0.3s var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--red), var(--gold));
  transition: width 0.35s var(--ease);
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta { flex-shrink: 0; }

.nav-links .mobile-contact { display: none; }

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
  padding: 0;
  position: relative;
}
.menu-toggle span {
  position: absolute;
  left: 11px;
  right: 11px;
  height: 1.5px;
  background: var(--gold-soft);
  transition: transform 0.3s var(--ease), top 0.3s var(--ease), opacity 0.3s var(--ease);
}
.menu-toggle span:nth-child(1) { top: 16px; }
.menu-toggle span:nth-child(2) { top: 24px; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { top: 20px; transform: rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */

.hero {
  position: relative;
  padding-top: 168px;
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 600px at 78% 8%, rgba(226, 58, 52, 0.13), transparent 62%),
    radial-gradient(800px 560px at 8% 30%, rgba(140, 29, 26, 0.12), transparent 65%),
    radial-gradient(1100px 700px at 50% 108%, rgba(217, 179, 108, 0.06), transparent 70%);
  z-index: -2;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 76px 76px;
  -webkit-mask-image: radial-gradient(ellipse 85% 65% at 50% 30%, #000 20%, transparent 78%);
  mask-image: radial-gradient(ellipse 85% 65% at 50% 30%, #000 20%, transparent 78%);
  z-index: -1;
}
.hero-glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(560px 420px at var(--mx, 70%) var(--my, 18%), rgba(226, 58, 52, 0.14), transparent 65%);
  transition: background 0.4s linear;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  align-items: center;
  gap: 64px;
  padding-bottom: 96px;
}

.hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(42px, 5.1vw, 74px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: #f6f2ea;
  text-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}
.hero-copy h1 .accent {
  color: var(--red-bright);
  position: relative;
  white-space: nowrap;
}
.hero-copy h1 .accent::after {
  content: "";
  position: absolute;
  left: 2%;
  right: 2%;
  bottom: 4px;
  height: 6px;
  background: linear-gradient(90deg, rgba(226, 58, 52, 0), rgba(226, 58, 52, 0.38), rgba(226, 58, 52, 0));
  filter: blur(2px);
}
.hero-copy h1 .gold {
  background: linear-gradient(180deg, #f7e6bf 0%, #e9c980 45%, #c9a05a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}

.hero-copy .lead {
  margin-top: 30px;
  max-width: 540px;
  font-size: 17px;
  line-height: 1.95;
  color: var(--muted);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 38px; }

.hero-stats {
  display: flex;
  gap: 44px;
  margin-top: 52px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  max-width: 560px;
}
.hero-stats dt {
  font-family: var(--font-latin);
  font-size: 34px;
  font-weight: 500;
  line-height: 1;
  color: var(--gold-soft);
  letter-spacing: 0.02em;
}
.hero-stats dd {
  margin-top: 10px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--muted-dim);
}
.hero-note {
  margin-top: 26px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.28);
}

/* ---- 任务台示意 ---- */
.hero-visual {
  position: relative;
  perspective: 1400px;
}

.console {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: linear-gradient(165deg, rgba(24, 24, 30, 0.92), rgba(12, 12, 16, 0.96));
  box-shadow:
    0 40px 90px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(217, 179, 108, 0.06) inset,
    0 0 80px rgba(226, 58, 52, 0.08);
  transform: rotateY(-6deg) rotateX(2.5deg) translateZ(0);
  transition: transform 0.8s var(--ease);
  overflow: hidden;
}
.console:hover { transform: rotateY(-2deg) rotateX(1deg); }
.console::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(226, 58, 52, 0.7), rgba(217, 179, 108, 0.6), transparent);
}

.console-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
}
.dots { display: flex; gap: 6px; }
.dots i { width: 7px; height: 7px; border-radius: 50%; background: rgba(255, 255, 255, 0.18); }
.dots i:first-child { background: rgba(226, 58, 52, 0.8); }
.dots i:nth-child(2) { background: rgba(217, 179, 108, 0.65); }
.console-title {
  font-family: var(--font-latin);
  font-size: 10.5px;
  letter-spacing: 0.26em;
  color: var(--muted-dim);
}
.live {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: #8fd18f;
}
.live i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #6fce6f;
  box-shadow: 0 0 0 0 rgba(111, 206, 111, 0.5);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(111, 206, 111, 0.45); }
  70% { box-shadow: 0 0 0 8px rgba(111, 206, 111, 0); }
  100% { box-shadow: 0 0 0 0 rgba(111, 206, 111, 0); }
}

.console-body { padding: 20px; }

.task-row {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
}
.task-row:last-of-type { border-bottom: 0; }
.task-icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 3px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  flex-shrink: 0;
}
.ic-red {
  color: #f6d7c9;
  background: linear-gradient(145deg, rgba(226, 58, 52, 0.3), rgba(140, 29, 26, 0.18));
  border: 1px solid rgba(226, 58, 52, 0.35);
}
.ic-gold {
  color: var(--gold-soft);
  background: linear-gradient(145deg, rgba(217, 179, 108, 0.22), rgba(217, 179, 108, 0.06));
  border: 1px solid rgba(217, 179, 108, 0.3);
}
.task-main { display: flex; flex-direction: column; line-height: 1.35; min-width: 0; }
.task-main b { font-size: 13px; font-weight: 500; color: #e8e3da; letter-spacing: 0.02em; }
.task-main span { font-size: 10.5px; letter-spacing: 0.06em; color: var(--muted-dim); }
.task-state {
  margin-left: auto;
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--gold-soft);
  padding: 4px 9px;
  border: 1px solid rgba(217, 179, 108, 0.28);
  border-radius: 20px;
  flex-shrink: 0;
}
.task-state.on { color: #f0a29c; border-color: rgba(226, 58, 52, 0.38); }
.task-state.dim { color: var(--muted-dim); border-color: rgba(255, 255, 255, 0.1); }

.progress-wrap { margin: 18px 0 16px; }
.progress-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--muted-dim);
  margin-bottom: 8px;
}
.progress {
  height: 3px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
}
.progress i {
  display: block;
  height: 100%;
  width: 68%;
  background: linear-gradient(90deg, var(--red), var(--gold));
  border-radius: 2px;
  animation: shimmer 2.8s ease-in-out infinite;
  background-size: 180% 100%;
}
@keyframes shimmer {
  0%, 100% { background-position: 0% 0; opacity: 0.85; }
  50% { background-position: 100% 0; opacity: 1; }
}

.log {
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.25);
  padding: 12px 14px;
}
.log-line {
  display: flex;
  gap: 9px;
  font-size: 10.5px;
  line-height: 1.9;
  color: var(--muted-dim);
  transition: color 0.4s var(--ease);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.log-line time {
  font-family: var(--font-latin);
  color: rgba(217, 179, 108, 0.55);
  flex-shrink: 0;
}
.log-line.is-active { color: #d8d2c8; }
.log-line.is-active time { color: var(--gold); }

.console-foot {
  display: flex;
  justify-content: space-between;
  padding: 12px 20px;
  border-top: 1px solid var(--line);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--muted-dim);
  background: rgba(255, 255, 255, 0.012);
}

/* ---- 浮动小卡 ---- */
.float-card {
  position: absolute;
  padding: 14px 18px;
  border: 1px solid rgba(217, 179, 108, 0.26);
  border-radius: 4px;
  background: rgba(16, 16, 20, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  gap: 2px;
  animation: floaty 7s ease-in-out infinite;
}
.float-card b { font-size: 12.5px; font-weight: 500; color: var(--text); letter-spacing: 0.03em; }
.fc-label {
  font-family: var(--font-latin);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
}
.fc-sub { font-size: 10px; letter-spacing: 0.06em; color: var(--muted-dim); }
.fc-1 { right: -26px; top: 12%; }
.fc-2 { left: -30px; bottom: 12%; animation-delay: -3.4s; }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

/* ---- 平台带 ---- */
.platform-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.012);
  position: relative;
}
.band-inner {
  display: flex;
  align-items: center;
  gap: 34px;
  padding-top: 22px;
  padding-bottom: 22px;
  flex-wrap: wrap;
}
.band-label {
  font-family: var(--font-latin);
  font-size: 10px;
  letter-spacing: 0.26em;
  color: var(--gold);
  text-transform: uppercase;
  flex-shrink: 0;
}
.band-list {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}
.band-list li {
  position: relative;
  font-size: 13.5px;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.46);
  transition: color 0.3s var(--ease);
}
.band-list li::before {
  content: "";
  position: absolute;
  left: -15px;
  top: 50%;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(217, 179, 108, 0.45);
  transform: translateY(-50%);
}
.band-list li:first-child::before { display: none; }
.band-list li:hover { color: var(--gold-soft); }

/* ============================================================
   区块通用
   ============================================================ */

.section {
  position: relative;
  padding: 128px 0;
}
.section-head {
  max-width: 780px;
  margin-bottom: 64px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(33px, 4vw, 56px);
  font-weight: 700;
  line-height: 1.26;
  letter-spacing: 0.01em;
  color: #f4f0e8;
}
.section-lead {
  margin-top: 22px;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}

/* ============================================================
   01 痛点
   ============================================================ */

.pain { background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.016) 30%, transparent); }
.pain-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.pain-card {
  position: relative;
  padding: 34px 28px 30px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.008));
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.45s var(--ease), background 0.45s var(--ease);
}
.pain-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--red), rgba(226, 58, 52, 0));
  transform: scaleX(0.28);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}
.pain-card:hover {
  transform: translateY(-5px);
  border-color: rgba(226, 58, 52, 0.32);
  background: linear-gradient(170deg, rgba(226, 58, 52, 0.06), rgba(255, 255, 255, 0.01));
}
.pain-card:hover::before { transform: scaleX(1); }
.pain-num {
  font-family: var(--font-latin);
  font-size: 44px;
  font-weight: 500;
  line-height: 1;
  color: rgba(217, 179, 108, 0.22);
  display: block;
  margin-bottom: 26px;
}
.pain-card h3 {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #efe9df;
  margin-bottom: 12px;
}
.pain-card p { font-size: 14px; line-height: 1.85; color: var(--muted); }

/* ============================================================
   02 闭环
   ============================================================ */

.loop { background: radial-gradient(900px 460px at 50% 0%, rgba(217, 179, 108, 0.045), transparent 70%); }
.loop-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  padding-top: 8px;
}
.loop-track::before {
  content: "";
  position: absolute;
  top: 13px;
  left: 2%;
  right: 2%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(217, 179, 108, 0.4) 12%, rgba(226, 58, 52, 0.34) 55%, rgba(217, 179, 108, 0.4) 88%, transparent);
}
.loop-step { position: relative; padding-top: 38px; }
.loop-dot {
  position: absolute;
  top: 7px;
  left: 0;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid rgba(217, 179, 108, 0.7);
  box-shadow: 0 0 0 4px rgba(10, 10, 12, 0.9), 0 0 18px rgba(217, 179, 108, 0.28);
}
.loop-dot::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--red);
}
.loop-index {
  display: block;
  font-family: var(--font-latin);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--gold);
  margin-bottom: 10px;
}
.loop-step h3 {
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 600;
  color: #f0eae1;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}
.loop-step p { font-size: 14px; line-height: 1.85; color: var(--muted); max-width: 250px; }

/* ============================================================
   03 能力矩阵
   ============================================================ */

.cap-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}
.cap-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 34px 32px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(168deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.008));
  overflow: hidden;
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.cap-card::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(226, 58, 52, 0.1), transparent 68%);
  opacity: 0;
  transition: opacity 0.6s var(--ease);
  pointer-events: none;
}
.cap-card:hover {
  transform: translateY(-5px);
  border-color: rgba(217, 179, 108, 0.34);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.38);
}
.cap-card:hover::after { opacity: 1; }
.span-7 { grid-column: span 7; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }

.cap-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 26px;
}
.cap-icon {
  display: grid;
  place-items: center;
  width: 47px;
  height: 47px;
  border: 1px solid rgba(217, 179, 108, 0.3);
  border-radius: 3px;
  color: var(--gold);
  background: linear-gradient(150deg, rgba(217, 179, 108, 0.14), rgba(217, 179, 108, 0.02));
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease);
}
.cap-icon svg { width: 23px; height: 23px; }
.cap-card:hover .cap-icon { color: var(--gold-soft); border-color: rgba(217, 179, 108, 0.6); }
.cap-tagline {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--muted-dim);
  text-align: right;
}
.cap-card h3 {
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #f1ebe2;
  margin-bottom: 13px;
}
.cap-card p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
  flex: 1;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}
.chips li {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(240, 217, 168, 0.78);
  padding: 4px 11px;
  border: 1px solid rgba(217, 179, 108, 0.2);
  border-radius: 20px;
  background: rgba(217, 179, 108, 0.045);
}

/* ============================================================
   04 差异对比
   ============================================================ */

.why { background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.015) 40%, transparent); }
.compare {
  border: 1px solid var(--line);
  border-radius: 5px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.012);
}
.compare-row {
  display: grid;
  grid-template-columns: 0.9fr 1.15fr 1.05fr 1.35fr;
  border-bottom: 1px solid var(--line);
}
.compare-row:last-child { border-bottom: 0; }
.compare-row > span {
  padding: 19px 22px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
  border-right: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 10px;
}
.compare-row > span:last-child { border-right: 0; }
.compare-row > span:first-child {
  font-size: 14px;
  font-weight: 500;
  color: #e6e0d6;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.02);
}
.compare-head > span {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted-dim);
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.025);
  padding-top: 15px;
  padding-bottom: 15px;
}
.compare-head .is-us {
  color: var(--gold-soft);
  background: rgba(226, 58, 52, 0.08);
}
.compare-row .is-us {
  color: #e9e2d6;
  background: linear-gradient(90deg, rgba(226, 58, 52, 0.07), rgba(217, 179, 108, 0.035));
}
.mark {
  font-style: normal;
  font-size: 12px;
  width: 20px;
  height: 20px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  flex-shrink: 0;
}
.mark.yes { color: #14100a; background: var(--gold); font-weight: 700; }
.mark.mid { color: var(--muted-dim); border: 1px solid rgba(255, 255, 255, 0.16); }
.mark.no { color: #c96a64; border: 1px solid rgba(226, 58, 52, 0.35); }

/* ============================================================
   05 场景
   ============================================================ */

.persona-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.persona {
  position: relative;
  padding: 38px 36px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background:
    radial-gradient(420px 220px at 100% 0%, rgba(226, 58, 52, 0.05), transparent 70%),
    rgba(255, 255, 255, 0.018);
  transition: transform 0.45s var(--ease), border-color 0.45s var(--ease);
}
.persona:hover { transform: translateY(-4px); border-color: rgba(217, 179, 108, 0.3); }
.persona-index {
  position: absolute;
  top: 28px;
  right: 32px;
  font-family: var(--font-latin);
  font-size: 58px;
  font-weight: 500;
  line-height: 1;
  color: rgba(217, 179, 108, 0.14);
}
.persona h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #f0eae1;
  margin-bottom: 18px;
}
.persona-pain {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  padding-left: 16px;
  border-left: 2px solid rgba(226, 58, 52, 0.5);
  margin-bottom: 18px;
}
.persona-value { font-size: 14.5px; line-height: 1.8; color: var(--gold-soft); }

/* ============================================================
   06 FAQ
   ============================================================ */

.faq-list {
  max-width: 860px;
  border-top: 1px solid var(--line-strong);
}
.faq-list details {
  border-bottom: 1px solid var(--line);
}
.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 25px 4px;
  font-size: 16.5px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: #e9e3d9;
  cursor: pointer;
  list-style: none;
  transition: color 0.3s var(--ease);
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary:hover { color: var(--gold-soft); }
.plus {
  position: relative;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.plus::before,
.plus::after {
  content: "";
  position: absolute;
  background: var(--gold);
  transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
}
.plus::before { left: 0; top: 7px; width: 16px; height: 1.5px; }
.plus::after { left: 7px; top: 0; width: 1.5px; height: 16px; }
details[open] .plus::after { transform: rotate(90deg); opacity: 0; }
.faq-body { padding: 0 40px 26px 4px; }
.faq-body p {
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--muted);
  max-width: 720px;
}

/* ============================================================
   CTA
   ============================================================ */

.cta { padding-bottom: 140px; }
.cta-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
  padding: 74px 72px;
  border: 1px solid rgba(217, 179, 108, 0.28);
  border-radius: 8px;
  overflow: hidden;
  background:
    radial-gradient(700px 420px at 12% 0%, rgba(226, 58, 52, 0.16), transparent 62%),
    radial-gradient(600px 400px at 100% 100%, rgba(217, 179, 108, 0.09), transparent 65%),
    linear-gradient(160deg, #17171c, #0e0e12 70%);
}
.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(226, 58, 52, 0.75), rgba(217, 179, 108, 0.65), transparent);
}
.cta-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.1vw, 42px);
  font-weight: 700;
  line-height: 1.3;
  color: #f6f1e8;
  margin-bottom: 20px;
}
.cta-copy > p {
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 520px;
}
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.contact-list {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.contact-list li { display: flex; flex-direction: column; gap: 3px; }
.contact-list span { font-size: 10.5px; letter-spacing: 0.16em; color: var(--muted-dim); }
.contact-list b { font-size: 14px; font-weight: 500; color: rgba(240, 217, 168, 0.82); letter-spacing: 0.05em; }

.cta-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.qr-box {
  width: 196px;
  height: 196px;
  display: grid;
  place-content: center;
  gap: 8px;
  text-align: center;
  border: 1px dashed rgba(217, 179, 108, 0.45);
  border-radius: 4px;
  background:
    linear-gradient(rgba(217, 179, 108, 0.03), rgba(217, 179, 108, 0.03)),
    repeating-linear-gradient(45deg, transparent 0 10px, rgba(255, 255, 255, 0.015) 10px 11px);
}
.qr-box span {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.12em;
  color: var(--gold-soft);
}
.qr-box small { font-size: 10.5px; letter-spacing: 0.06em; color: var(--muted-dim); }
.qr-note { font-size: 12px; letter-spacing: 0.04em; color: var(--muted-dim); text-align: center; }

/* ============================================================
   页脚
   ============================================================ */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 58px 0 46px;
  background: rgba(0, 0, 0, 0.22);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 26px 48px;
  align-items: start;
}
.footer-brand .brand-text strong { font-size: 18px; }
.footer-slogan { margin-top: 14px; font-size: 13px; letter-spacing: 0.12em; color: var(--muted-dim); }
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  padding-top: 10px;
}
.footer-nav a {
  font-size: 13px;
  color: var(--muted);
  transition: color 0.3s var(--ease);
}
.footer-nav a:hover { color: var(--gold-soft); }
.footer-disclaimer {
  grid-column: 1 / -1;
  font-size: 11.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.26);
  max-width: 820px;
}
.footer-copy {
  grid-column: 1 / -1;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.28);
}

/* ============================================================
   品牌 Logo
   ============================================================ */

.brand-logo {
  display: block;
  height: 46px;
  width: auto;
}
.footer-brand .brand-logo { height: 56px; }

/* ============================================================
   多页：内页页头
   ============================================================ */

.page-hero {
  position: relative;
  padding: 166px 0 88px;
  overflow: hidden;
  isolation: isolate;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(820px 520px at 80% 0%, rgba(226, 58, 52, 0.13), transparent 62%),
    radial-gradient(700px 480px at 5% 30%, rgba(140, 29, 26, 0.11), transparent 68%),
    radial-gradient(900px 520px at 50% 110%, rgba(217, 179, 108, 0.06), transparent 72%);
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 76px 76px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 20%, #000 15%, transparent 76%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 20%, #000 15%, transparent 76%);
}
.page-hero .eyebrow { margin-bottom: 22px; }
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 4.6vw, 64px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: 0.01em;
  color: #f5f1e9;
}
.page-hero .lead {
  margin-top: 24px;
  max-width: 700px;
  font-size: 16.5px;
  line-height: 1.95;
  color: var(--muted);
}
.page-hero .hero-actions { margin-top: 34px; }
.page-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 30px 44px;
  margin-top: 42px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  max-width: 720px;
}
.page-hero-meta b {
  display: block;
  font-family: var(--font-latin);
  font-size: 22px;
  font-weight: 500;
  color: var(--gold-soft);
  letter-spacing: 0.03em;
}
.page-hero-meta span {
  display: block;
  margin-top: 4px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--muted-dim);
}

/* 子导航 */
.subnav {
  position: sticky;
  top: 78px;
  z-index: 60;
  background: rgba(10, 10, 12, 0.84);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.subnav-inner {
  display: flex;
  gap: 30px;
  overflow-x: auto;
  padding: 14px 0;
  scrollbar-width: none;
}
.subnav-inner::-webkit-scrollbar { display: none; }
.subnav a {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.3s var(--ease);
}
.subnav a:hover { color: var(--gold-soft); }

/* ============================================================
   功能详情
   ============================================================ */

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  padding: 78px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 150px;
}
.feature-block:last-child { border-bottom: 0; }
.feature-block.reverse .feature-copy { order: 2; }
.feature-block.reverse .feature-visual { order: 1; }
.feature-copy .eyebrow { margin-bottom: 18px; }
.feature-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.2vw, 44px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: #f3eee5;
}
.feature-copy > p {
  margin-top: 18px;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--muted);
}
.feature-list {
  display: grid;
  gap: 13px;
  margin-top: 26px;
}
.feature-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 14.5px;
  line-height: 1.75;
  color: #cfc9c0;
}
.feature-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 8px;
  flex-shrink: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--red), var(--gold));
  box-shadow: 0 0 10px rgba(226, 58, 52, 0.4);
}
.feature-list b { color: var(--gold-soft); font-weight: 500; }
.feature-note { margin-top: 24px; font-size: 12px; color: var(--muted-dim); }

/* 功能示意面板 */
.visual-panel {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: linear-gradient(165deg, rgba(24, 24, 30, 0.92), rgba(12, 12, 16, 0.96));
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.45);
}
.visual-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(226, 58, 52, 0.65), rgba(217, 179, 108, 0.55), transparent);
}
.visual-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-latin);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--muted-dim);
}
.visual-body { padding: 22px; display: grid; gap: 10px; }
.vrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 12.5px;
  color: #d9d3c9;
}
.vrow small { display: block; margin-top: 2px; font-size: 10px; color: var(--muted-dim); letter-spacing: 0.04em; }
.vrow > span:last-child {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
  border: 1px solid rgba(217, 179, 108, 0.25);
  padding: 3px 8px;
  border-radius: 12px;
  white-space: nowrap;
}
.vrow.hot > span:last-child { color: #f0a29c; border-color: rgba(226, 58, 52, 0.35); }
.vchips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.vchips span {
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: rgba(240, 217, 168, 0.78);
  padding: 4px 11px;
  border: 1px solid rgba(217, 179, 108, 0.2);
  border-radius: 20px;
  background: rgba(217, 179, 108, 0.045);
}
.vstat { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.vstat div {
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 13px 8px;
  text-align: center;
}
.vstat b {
  display: block;
  font-family: var(--font-latin);
  font-size: 19px;
  font-weight: 500;
  color: var(--gold-soft);
}
.vstat span { font-size: 9.5px; letter-spacing: 0.06em; color: var(--muted-dim); }
.vbar { height: 4px; border-radius: 2px; background: rgba(255, 255, 255, 0.07); overflow: hidden; margin-top: 2px; }
.vbar i { display: block; height: 100%; width: 72%; border-radius: 2px; background: linear-gradient(90deg, var(--red), var(--gold)); }
.vflow { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.vflow span {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: #ddd6ca;
  padding: 6px 11px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.02);
}
.vflow i { font-style: normal; color: var(--gold); font-size: 11px; }

/* ============================================================
   解决方案
   ============================================================ */

.solution-list { display: grid; gap: 20px; }
.solution-card {
  display: grid;
  grid-template-columns: 0.9fr 1.5fr;
  gap: 44px;
  padding: 40px 42px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background:
    radial-gradient(420px 240px at 100% 0%, rgba(226, 58, 52, 0.05), transparent 70%),
    rgba(255, 255, 255, 0.018);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.solution-card:hover { border-color: rgba(217, 179, 108, 0.3); transform: translateY(-3px); }
.solution-card h3 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #f0eae1;
}
.solution-card .s-quote {
  margin-top: 16px;
  padding-left: 14px;
  border-left: 2px solid rgba(226, 58, 52, 0.5);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}
.solution-body { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.solution-body h4 {
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.solution-body p { font-size: 13.5px; line-height: 1.85; color: var(--muted); }

/* 落地流程 */
.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.process-step {
  position: relative;
  padding: 26px 20px 24px;
  border: 1px solid var(--line);
  border-top: 1px solid rgba(217, 179, 108, 0.5);
  border-radius: 3px;
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.008));
}
.process-step .p-num {
  font-family: var(--font-latin);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}
.process-step h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  margin-top: 12px;
  color: #efe9df;
}
.process-step p { margin-top: 8px; font-size: 13px; line-height: 1.8; color: var(--muted); }

/* ============================================================
   关于我们
   ============================================================ */

.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 70px;
  align-items: center;
}
.about-logo { width: min(440px, 100%); height: auto; }
.about-lead h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.2vw, 44px);
  font-weight: 700;
  line-height: 1.3;
  color: #f3eee5;
}
.about-lead p { margin-top: 18px; font-size: 15px; line-height: 1.95; color: var(--muted); }
.values-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.value-card {
  padding: 32px 30px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.008));
}
.value-card span {
  font-family: var(--font-latin);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}
.value-card h3 {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  margin: 12px 0 10px;
  color: #efe9df;
}
.value-card p { font-size: 13.5px; line-height: 1.85; color: var(--muted); }

/* ============================================================
   联系我们
   ============================================================ */

.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 44px;
  align-items: start;
}
.contact-card {
  padding: 36px 34px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.008));
}
.contact-card + .contact-card { margin-top: 18px; }
.contact-card .label {
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--gold);
}
.contact-phone {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-top: 14px;
}
.contact-phone a {
  font-family: var(--font-latin);
  font-size: clamp(26px, 3vw, 36px);
  color: var(--gold-soft);
  letter-spacing: 0.04em;
  transition: color 0.3s var(--ease);
}
.contact-phone a:hover { color: #fff; }
.contact-person { margin-top: 8px; font-size: 13px; color: var(--muted); }
.contact-desc { margin-top: 14px; font-size: 14px; line-height: 1.85; color: var(--muted); }
.copy-btn {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
  border: 1px solid rgba(217, 179, 108, 0.35);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}
.copy-btn:hover { background: rgba(217, 179, 108, 0.1); border-color: rgba(217, 179, 108, 0.7); }

.qr-card {
  width: max-content;
  max-width: 100%;
  padding: 14px;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.42);
}
.qr-card img {
  display: block;
  width: 230px;
  height: 230px;
  max-width: 100%;
  object-fit: contain;
}
.contact-side { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.contact-side .qr-note { text-align: left; max-width: 280px; }

.steps-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step-card {
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.008));
}
.step-card b {
  font-family: var(--font-latin);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gold);
}
.step-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin: 12px 0 8px;
  color: #efe9df;
}
.step-card p { font-size: 13.5px; line-height: 1.85; color: var(--muted); }

/* CTA 区二维码 */
.cta-side .qr-card { padding: 11px; }
.cta-side .qr-card img { width: 190px; height: 190px; }
.cta-side .qr-note { text-align: center; }

/* 页脚联系信息 */
.footer-contact { margin-top: 16px; font-size: 13px; color: var(--muted); }
.footer-contact a { color: var(--gold-soft); }
.footer-contact span { display: block; margin-top: 4px; font-size: 11.5px; color: var(--muted-dim); }

/* ============================================================
   响应式
   ============================================================ */

@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 72px; }
  .hero-copy { max-width: 720px; }
  .hero-visual { max-width: 620px; width: 100%; margin: 0 auto; }
  .float-card { display: none; }
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .span-7, .span-5, .span-6 { grid-column: span 1; }
  .cap-card { min-height: 260px; }

  .page-hero { padding: 150px 0 72px; }
  .feature-block { grid-template-columns: 1fr; gap: 40px; padding: 60px 0; }
  .feature-block.reverse .feature-copy,
  .feature-block.reverse .feature-visual { order: 0; }
  .solution-card { grid-template-columns: 1fr; gap: 26px; }
  .process { grid-template-columns: repeat(3, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: 78px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 10px 32px 24px;
    background: rgba(10, 10, 12, 0.97);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  }
  .nav-links.open { opacity: 1; visibility: visible; transform: none; }
  .nav-links a { padding: 15px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.05); font-size: 15px; }
  .nav-links a::after { display: none; }
  .nav-links .mobile-contact { display: block; color: var(--gold-soft); border-bottom: 0; padding-bottom: 4px; }
  .nav-cta { margin-left: auto; }
  .menu-toggle { display: block; }

  .section { padding: 96px 0; }
  .loop-track { grid-template-columns: repeat(2, 1fr); row-gap: 44px; }
  .loop-track::before { display: none; }
  .loop-dot { display: none; }
  .loop-step { padding-top: 0; }
  .loop-step p { max-width: none; }
  .compare { overflow-x: auto; }
  .compare-row { min-width: 720px; }
  .cta-panel { grid-template-columns: 1fr; padding: 52px 40px; gap: 40px; }
  .cta-side { align-items: flex-start; }
  .footer-inner { grid-template-columns: 1fr; }

  .brand-logo { height: 40px; }
  .subnav { top: 78px; }
  .steps-3 { grid-template-columns: 1fr; }
  .process { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .container { padding: 0 22px; }
  .hero { padding-top: 132px; }
  .hero-copy h1 { font-size: clamp(36px, 9.4vw, 46px); }
  .hero-copy h1 .accent { white-space: normal; }
  .hero-copy .lead { font-size: 15.5px; }
  .hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .hero-stats dt { font-size: 28px; }
  .hero-stats dd { font-size: 11px; letter-spacing: 0.04em; }
  .console { transform: none; }
  .console:hover { transform: none; }
  .pain-grid { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: 1fr; }
  .cap-card { padding: 28px 24px; min-height: 0; }
  .persona-grid { grid-template-columns: 1fr; }
  .persona { padding: 30px 26px; }
  .persona-index { font-size: 46px; top: 22px; right: 24px; }
  .section-head { margin-bottom: 46px; }
  .section-head h2 { font-size: clamp(29px, 7.6vw, 38px); }
  #why .section-head h2 { font-size: clamp(26px, 7vw, 36px); }
  .band-inner { gap: 18px; }
  .band-list { gap: 20px 22px; }
  .band-list li::before { left: -11px; }
  .cta-panel { padding: 44px 26px; }
  .cta-copy h2 { font-size: clamp(24px, 6.4vw, 30px); }
  .contact-list { gap: 14px 24px; }
  .footer-nav { gap: 10px 20px; }
  .log-line { font-size: 9.5px; }
  .nav-cta { display: none; }

  /* 对比表：移动端改为分组卡片 */
  .compare { border: 0; background: transparent; overflow: visible; }
  .compare-row.compare-head { display: none; }
  .compare-row {
    display: block;
    min-width: 0;
    margin-bottom: 14px;
    border: 1px solid var(--line);
    border-radius: 4px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.015);
  }
  .compare-row > span {
    display: flex;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 13px 18px;
    font-size: 13px;
  }
  .compare-row > span:last-child { border-bottom: 0; }
  .compare-row > span:first-child {
    font-size: 15px;
    letter-spacing: 0.06em;
    background: rgba(255, 255, 255, 0.03);
  }
  .compare-row > span:nth-child(2)::before,
  .compare-row > span:nth-child(3)::before,
  .compare-row > span:nth-child(4)::before {
    flex-shrink: 0;
    width: 66px;
    padding-top: 2px;
    font-size: 10px;
    letter-spacing: 0.08em;
    color: var(--muted-dim);
  }
  .compare-row > span:nth-child(2)::before { content: "单点工具"; }
  .compare-row > span:nth-child(3)::before { content: "外包代运营"; }
  .compare-row > span:nth-child(4)::before { content: "红影AI"; color: var(--gold); }

  .brand-logo { height: 36px; }
  .page-hero { padding: 128px 0 62px; }
  .page-hero h1 { font-size: clamp(32px, 8.6vw, 42px); }
  .page-hero .lead { font-size: 15px; }
  .page-hero-meta { gap: 20px 28px; }
  .page-hero-meta b { font-size: 20px; }
  .feature-block { padding: 48px 0; gap: 32px; }
  .feature-copy h2 { font-size: clamp(27px, 7.4vw, 34px); }
  .solution-card { padding: 28px 24px; }
  .solution-body { grid-template-columns: 1fr; gap: 20px; }
  .process { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .about-grid { gap: 34px; }
  .about-logo { width: 300px; }
  .contact-card { padding: 28px 24px; }
  .qr-card img { width: 210px; height: 210px; }
  .footer-brand .brand-logo { height: 48px; }
}

@media (max-width: 380px) {
  .hero-copy h1 { font-size: 32px; }
  .btn { padding: 13px 22px; font-size: 14px; }
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}