/* ==========================================================================
   深圳智算青禾科技有限公司 —— 官网样式表
   设计语言：中国红 × 鎏金 × 暖白，K 线 / 量化网格 / 几何线条
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  /* 品牌主色 —— 墨青（2026-10 起对齐新 Logo #8B1A2B） */
  --red-900: #5C0A14;
  --red-850: #7A0E1E;
  --red-800: #8B1A2B;
  --red-700: #B91C1C;
  --red-600: #C41E3A;
  --red-500: #DC2626;
  --red-tint: rgba(196, 30, 58, 0.06);

  /* 鎏金 */
  --gold-800: #6F5516;
  --gold-700: #8A6D1F;
  --gold-600: #B8942E;
  --gold-500: #C9A84C;
  --gold-400: #D4AF37;
  --gold-300: #E8C860;
  --gold-200: #F0D68A;
  --gold-100: #FBF0CC;

  /* 暖白底板 */
  --cream-0: #FFFFFF;
  --cream-1: #FFFBF5;
  --cream-2: #FFFBEB;
  --cream-3: #FFF7ED;
  --cream-line: #F0E3D2;

  /* 墨色文字 */
  --ink-900: #1A1214;
  --ink-800: #2B2226;
  --ink-700: #333333;
  --ink-600: #4A4A4A;
  --ink-500: #5F5F5F;
  --ink-400: #8A8A8A;
  --ink-300: #ADADAD;

  /* 功能色 */
  --up: #C41E3A;      /* 涨 —— 红 */
  --down: #0E9F6E;    /* 跌 —— 绿（A股惯例） */

  /* 框架 */
  --maxw: 1200px;
  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 18px;
  --shadow-s: 0 2px 8px rgba(92, 10, 20, 0.05);
  --shadow-m: 0 8px 24px rgba(92, 10, 20, 0.08);
  --shadow-l: 0 18px 48px rgba(92, 10, 20, 0.12);
  --nav-h: 72px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei",
    "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-serif: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--cream-1);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 { margin: 0; font-weight: 800; color: var(--ink-900); line-height: 1.35; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color 0.25s var(--ease); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
strong { font-weight: 700; color: var(--ink-900); }

::selection { background: var(--red-600); color: #fff; }

:focus-visible { outline: 2px solid var(--gold-500); outline-offset: 3px; border-radius: 3px; }

/* ---------- 3. 布局 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

.section { padding: 96px 0; position: relative; }
.section--tight { padding: 64px 0; }
.section--cream2 { background: var(--cream-2); }
.section--cream3 { background: var(--cream-3); }

/* 底纹：量化网格 */
.section--grid::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(196, 30, 58, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(196, 30, 58, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, #000 30%, transparent 100%);
}

.section > .container { position: relative; z-index: 1; }

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

/* ---------- 4. 章节标题 ---------- */
.sec-head { margin-bottom: 56px; max-width: 760px; }
.sec-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.sec-head__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-700);
  font-family: var(--font-serif);
  margin-bottom: 14px;
}
.sec-head__eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-400), var(--gold-200));
  border-radius: 2px;
}

.sec-head__title {
  font-size: 38px;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.sec-head__title em {
  font-style: normal;
  color: var(--red-700);
  position: relative;
}
.sec-head__title em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 7px;
  background: linear-gradient(90deg, rgba(212, 175, 55, 0.35), rgba(212, 175, 55, 0.08));
  border-radius: 2px;
  z-index: -1;
}

.sec-head__desc {
  font-size: 16.5px;
  color: var(--ink-500);
  line-height: 1.85;
}

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 50px;
  padding: 0 30px;
  border-radius: var(--radius-s);
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: linear-gradient(135deg, var(--red-600), var(--red-800));
  color: #fff;
  box-shadow: 0 6px 18px rgba(139, 26, 43, 0.26);
}
.btn--primary:hover { box-shadow: 0 12px 28px rgba(139, 26, 43, 0.34); }

.btn--gold {
  background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
  color: var(--red-850);
  box-shadow: 0 6px 18px rgba(201, 168, 76, 0.32);
}
.btn--gold:hover { box-shadow: 0 12px 28px rgba(201, 168, 76, 0.42); }

.btn--ghost {
  background: transparent;
  color: var(--red-700);
  border: 1.5px solid rgba(196, 30, 58, 0.32);
}
.btn--ghost:hover {
  border-color: var(--red-600);
  background: rgba(196, 30, 58, 0.05);
}

.btn--ghost-light {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(240, 214, 138, 0.5);
}
.btn--ghost-light:hover { border-color: var(--gold-300); background: rgba(240, 214, 138, 0.1); }

.btn--sm { height: 42px; padding: 0 22px; font-size: 14.5px; }

.btn__arrow { transition: transform 0.25s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ---------- 6. 顶部导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(255, 251, 245, 0.86);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}
.nav.is-scrolled {
  border-bottom-color: var(--cream-line);
  box-shadow: 0 4px 20px rgba(92, 10, 20, 0.06);
  background: rgba(255, 251, 245, 0.96);
}

.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand__mark { width: 40px; height: 34px; flex-shrink: 0; }
.brand__mark img, .brand__mark svg { width: 100%; height: 100%; object-fit: contain; }

.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name {
  font-size: 19px;
  font-weight: 800;
  color: var(--red-850);
  letter-spacing: 0.06em;
}
.brand__sub {
  font-family: var(--font-serif);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  color: var(--gold-600);
  text-transform: uppercase;
}

.nav__menu { display: flex; align-items: center; gap: 4px; }
.nav__link {
  position: relative;
  padding: 9px 15px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink-600);
  border-radius: var(--radius-s);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--red-600), var(--gold-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav__link:hover { color: var(--red-700); }
.nav__link:hover::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--red-700); font-weight: 700; }
.nav__link.is-active::after { transform: scaleX(1); }

.nav__cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

.nav__toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-s);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav__toggle span {
  display: block;
  width: 21px;
  height: 2px;
  background: var(--red-800);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.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); }

.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--cream-1);
  border-top: 1px solid var(--cream-line);
  padding: 20px 28px 40px;
  overflow-y: auto;
  z-index: 99;
}
.nav__mobile.is-open { display: block; animation: fadeDown 0.28s var(--ease); }
.nav__mobile a {
  display: block;
  padding: 16px 4px;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink-800);
  border-bottom: 1px solid var(--cream-line);
}
.nav__mobile a.is-active { color: var(--red-700); }
.nav__mobile .btn { width: 100%; margin-top: 24px; }

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 7. 首页 Hero ---------- */
.hero {
  position: relative;
  padding: 84px 0 96px;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 8%, rgba(212, 175, 55, 0.13) 0%, transparent 46%),
    radial-gradient(circle at 6% 92%, rgba(196, 30, 58, 0.07) 0%, transparent 44%),
    var(--cream-1);
}

.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(196, 30, 58, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(196, 30, 58, 0.05) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(ellipse 70% 60% at 40% 45%, #000 20%, transparent 92%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 40% 45%, #000 20%, transparent 92%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 64px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(212, 175, 55, 0.45);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--red-800);
  box-shadow: var(--shadow-s);
  margin-bottom: 26px;
}
.hero__badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red-600);
  box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.16);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.16); }
  50% { box-shadow: 0 0 0 7px rgba(196, 30, 58, 0.05); }
}

.hero__title {
  font-size: 56px;
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin-bottom: 24px;
}
.hero__title .line-gold {
  display: block;
  background: linear-gradient(100deg, var(--red-800) 0%, var(--red-600) 34%, var(--gold-500) 78%, var(--gold-300) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero__title .line-sub {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: var(--ink-700);
  margin-top: 8px;
  letter-spacing: 0.01em;
}

.hero__desc {
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink-500);
  max-width: 560px;
  margin-bottom: 34px;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding-top: 26px;
  border-top: 1px solid var(--cream-line);
}
.hero__meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-500);
}
.hero__meta-item svg { color: var(--gold-500); flex-shrink: 0; }

/* Hero 右侧：策略引擎可视化 */
.hero__visual { position: relative; }

.term {
  position: relative;
  border-radius: var(--radius-l);
  background: linear-gradient(160deg, #2B0A10 0%, #4A0F1C 58%, #35080F 100%);
  box-shadow: var(--shadow-l), inset 0 1px 0 rgba(240, 214, 138, 0.16);
  border: 1px solid rgba(212, 175, 55, 0.28);
  overflow: hidden;
}
.term::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 78% 12%, rgba(212, 175, 55, 0.16), transparent 52%);
  pointer-events: none;
}

.term__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 18px;
  border-bottom: 1px solid rgba(240, 214, 138, 0.14);
  position: relative;
  z-index: 1;
}
.term__bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(240, 214, 138, 0.28);
}
.term__bar i:first-child { background: rgba(196, 30, 58, 0.85); }
.term__bar i:nth-child(2) { background: rgba(212, 175, 55, 0.85); }
.term__title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(240, 214, 138, 0.72);
}

.term__body { padding: 20px 20px 24px; position: relative; z-index: 1; }

.term__chart { margin-bottom: 18px; }

.term__rows { display: grid; gap: 9px; }
.term__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 13px;
  border-radius: var(--radius-s);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(240, 214, 138, 0.1);
  font-size: 13px;
}
.term__row span:first-child {
  color: rgba(255, 245, 235, 0.72);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.term__row b {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--gold-200);
}
.term__row b.up { color: #FF6B81; }
.term__row b.ok { color: #6EE7B7; }

.term__float {
  position: absolute;
  right: -16px;
  bottom: -22px;
  padding: 14px 20px;
  border-radius: var(--radius-m);
  background: linear-gradient(135deg, var(--gold-200), var(--gold-400));
  box-shadow: 0 14px 34px rgba(184, 148, 46, 0.36);
  z-index: 3;
}
.term__float b {
  display: block;
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1.1;
  color: var(--red-850);
}
.term__float span {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--red-800);
  opacity: 0.86;
  letter-spacing: 0.03em;
}

/* ---------- 8. 双入口分流 ---------- */
.split { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.split__card {
  position: relative;
  display: block;
  padding: 40px 38px 36px;
  border-radius: var(--radius-l);
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.split__card:hover { transform: translateY(-5px); }

.split__card--org {
  background: linear-gradient(150deg, #8B1A2B 0%, #B91C1C 55%, #A31A2E 100%);
  color: #fff;
  box-shadow: 0 14px 38px rgba(139, 26, 43, 0.28);
}
.split__card--org:hover { box-shadow: 0 22px 52px rgba(139, 26, 43, 0.36); }

.split__card--personal {
  background: linear-gradient(150deg, #FFF6E2 0%, #FDF0D2 48%, #FBE8BE 100%);
  color: var(--ink-800);
  border: 1px solid rgba(212, 175, 55, 0.42);
  box-shadow: 0 14px 38px rgba(184, 148, 46, 0.18);
}
.split__card--personal:hover { box-shadow: 0 22px 52px rgba(184, 148, 46, 0.26); }

.split__deco {
  position: absolute;
  right: -30px;
  top: -30px;
  width: 190px;
  height: 190px;
  opacity: 0.14;
  pointer-events: none;
}

.split__tag {
  display: inline-block;
  padding: 5px 13px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 20px;
}
.split__card--org .split__tag {
  background: rgba(240, 214, 138, 0.18);
  border: 1px solid rgba(240, 214, 138, 0.45);
  color: var(--gold-200);
}
.split__card--personal .split__tag {
  background: rgba(139, 26, 43, 0.08);
  border: 1px solid rgba(139, 26, 43, 0.22);
  color: var(--red-800);
}

.split__title { font-size: 26px; margin-bottom: 14px; }
.split__card--org .split__title { color: #fff; }
.split__card--personal .split__title { color: var(--red-850); }

.split__desc {
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}
.split__card--org .split__desc { color: rgba(255, 255, 255, 0.86); }
.split__card--personal .split__desc { color: var(--ink-600); }

.split__list { display: grid; gap: 10px; margin-bottom: 28px; position: relative; z-index: 1; }
.split__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.7;
}
.split__list svg { flex-shrink: 0; margin-top: 6px; }
.split__card--org .split__list li { color: rgba(255, 255, 255, 0.9); }
.split__card--org .split__list svg { color: var(--gold-300); }
.split__card--personal .split__list li { color: var(--ink-600); }
.split__card--personal .split__list svg { color: var(--red-600); }

.split__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  position: relative;
  z-index: 1;
}
.split__card--org .split__cta { color: var(--gold-300); }
.split__card--personal .split__cta { color: var(--red-700); }
.split__cta svg { transition: transform 0.3s var(--ease); }
.split__card:hover .split__cta svg { transform: translateX(5px); }

/* ---------- 9. 数据看板 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-radius: var(--radius-l);
  background: linear-gradient(150deg, #2B0A10 0%, #4A0F1C 62%, #33080E 100%);
  border: 1px solid rgba(212, 175, 55, 0.24);
  box-shadow: var(--shadow-l);
  overflow: hidden;
  position: relative;
}
.stats::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(240, 214, 138, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 214, 138, 0.05) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

.stat {
  padding: 42px 30px;
  text-align: center;
  border-right: 1px solid rgba(240, 214, 138, 0.13);
  position: relative;
  z-index: 1;
}
.stat:last-child { border-right: none; }

.stat__num {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(120deg, var(--gold-200), var(--gold-400));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: block;
  margin-bottom: 8px;
}
.stat__num small { font-size: 20px; font-weight: 700; }
.stat__label {
  font-size: 14.5px;
  font-weight: 700;
  color: rgba(255, 245, 235, 0.92);
  display: block;
  margin-bottom: 6px;
}
.stat__hint {
  font-size: 12.5px;
  color: rgba(240, 214, 138, 0.5);
  line-height: 1.6;
}

/* ---------- 10. 卡片 ---------- */
.card {
  position: relative;
  padding: 34px 30px 32px;
  border-radius: var(--radius-m);
  background: var(--cream-0);
  border: 1px solid var(--cream-line);
  box-shadow: var(--shadow-s);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
    border-color 0.35s var(--ease);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--red-600), var(--gold-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-m);
  border-color: rgba(212, 175, 55, 0.45);
}
.card:hover::before { transform: scaleX(1); }

.card__icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-s);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  background: linear-gradient(140deg, rgba(196, 30, 58, 0.09), rgba(212, 175, 55, 0.14));
  border: 1px solid rgba(212, 175, 55, 0.3);
  color: var(--red-700);
}
.card__icon--solid {
  background: linear-gradient(140deg, var(--red-700), var(--red-850));
  border-color: transparent;
  color: var(--gold-200);
}

.card__num {
  position: absolute;
  top: 22px;
  right: 26px;
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: rgba(196, 30, 58, 0.075);
}

.card__title { font-size: 20px; margin-bottom: 12px; }
.card__desc { font-size: 14.8px; line-height: 1.85; color: var(--ink-500); }

.card__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tag {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 4px;
  font-size: 12.5px;
  font-weight: 600;
  background: linear-gradient(90deg, var(--cream-2), var(--gold-100));
  color: var(--gold-800);
  border: 1px solid rgba(212, 175, 55, 0.28);
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 22px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--red-700);
}
.card__link svg { transition: transform 0.3s var(--ease); }
.card:hover .card__link svg { transform: translateX(4px); }

/* ---------- 11. 优势列表（图文左右） ---------- */
.split-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.split-block--reverse .split-block__media { order: -1; }

.adv-list { display: grid; gap: 22px; }

.adv {
  display: flex;
  gap: 18px;
  padding: 22px 24px;
  border-radius: var(--radius-m);
  background: var(--cream-0);
  border: 1px solid var(--cream-line);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-color 0.3s var(--ease);
}
.adv:hover {
  transform: translateX(6px);
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: var(--shadow-s);
}

.adv__icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(140deg, var(--red-700), var(--red-850));
  color: var(--gold-200);
  box-shadow: 0 5px 14px rgba(139, 26, 43, 0.24);
}
.adv__title { font-size: 17px; margin-bottom: 7px; }
.adv__desc { font-size: 14.5px; line-height: 1.8; color: var(--ink-500); }

/* 媒体框：深色终端风 */
.media-frame {
  border-radius: var(--radius-l);
  background: linear-gradient(155deg, #2B0A10 0%, #470E1A 60%, #320810 100%);
  border: 1px solid rgba(212, 175, 55, 0.26);
  box-shadow: var(--shadow-l);
  padding: 30px;
  position: relative;
  overflow: hidden;
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 82% 10%, rgba(212, 175, 55, 0.14), transparent 55%);
  pointer-events: none;
}
.media-frame--light {
  background: var(--cream-0);
  border-color: var(--cream-line);
  box-shadow: var(--shadow-m);
}
.media-frame--light::after { display: none; }

.media-frame__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(240, 214, 138, 0.66);
  margin-bottom: 20px;
  display: block;
}

/* 流程步骤 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.steps::before {
  content: "";
  position: absolute;
  top: 29px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    rgba(212, 175, 55, 0.5) 0 8px,
    transparent 8px 16px
  );
  z-index: 0;
}

.step { text-align: center; padding: 0 18px; position: relative; z-index: 1; }

.step__no {
  width: 58px;
  height: 58px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(140deg, var(--red-600), var(--red-850));
  border: 3px solid var(--cream-1);
  box-shadow: 0 6px 18px rgba(139, 26, 43, 0.28);
  transition: transform 0.3s var(--ease);
}
.step:hover .step__no { transform: scale(1.07); }

.step__title { font-size: 17px; margin-bottom: 9px; }
.step__desc { font-size: 14px; line-height: 1.75; color: var(--ink-500); }

/* ---------- 12. CTA 横幅 ---------- */
.cta-band {
  position: relative;
  border-radius: var(--radius-l);
  padding: 62px 56px;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 18%, rgba(212, 175, 55, 0.2) 0%, transparent 50%),
    linear-gradient(140deg, #7A0E1E 0%, #B91C1C 56%, #8B1A2B 100%);
  color: #fff;
  box-shadow: var(--shadow-l);
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(240, 214, 138, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 214, 138, 0.06) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

.cta-band__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-band__title { font-size: 32px; color: #fff; margin-bottom: 12px; }
.cta-band__desc { font-size: 16px; color: rgba(255, 255, 255, 0.84); line-height: 1.8; max-width: 620px; }
.cta-band__actions { display: flex; gap: 14px; flex-shrink: 0; flex-wrap: wrap; }

/* ---------- 13. 内页头图 ---------- */
.page-hero {
  position: relative;
  padding: 66px 0 62px;
  background:
    radial-gradient(circle at 84% 14%, rgba(212, 175, 55, 0.14) 0%, transparent 48%),
    linear-gradient(160deg, #FFFBF5 0%, #FFFBEB 52%, #FFF6E4 100%);
  border-bottom: 1px solid var(--cream-line);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(196, 30, 58, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(196, 30, 58, 0.05) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(ellipse 72% 80% at 30% 50%, #000 10%, transparent 90%);
  -webkit-mask-image: radial-gradient(ellipse 72% 80% at 30% 50%, #000 10%, transparent 90%);
  pointer-events: none;
}
.page-hero > .container { position: relative; z-index: 1; }

.page-hero__title { font-size: 42px; margin-bottom: 16px; letter-spacing: -0.01em; }
.page-hero__desc { font-size: 16.5px; color: var(--ink-500); line-height: 1.85; max-width: 720px; }

.crumb {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  color: var(--ink-400);
  margin-bottom: 20px;
}
.crumb a:hover { color: var(--red-700); }
.crumb__sep { color: var(--ink-300); }
.crumb__current { color: var(--ink-600); font-weight: 600; }

/* ---------- 14. 关于我们专用 ---------- */
.prose p {
  font-size: 16px;
  line-height: 1.95;
  color: var(--ink-600);
  margin-bottom: 20px;
  text-align: justify;
}
.prose strong { color: var(--red-800); }

.value-card {
  padding: 32px 28px;
  border-radius: var(--radius-m);
  background: var(--cream-0);
  border: 1px solid var(--cream-line);
  text-align: center;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
    border-color 0.35s var(--ease);
}
.value-card:hover {
  transform: translateY(-6px);
  border-color: rgba(212, 175, 55, 0.45);
  box-shadow: var(--shadow-m);
}
.value-card__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(140deg, rgba(196, 30, 58, 0.08), rgba(212, 175, 55, 0.16));
  border: 1px solid rgba(212, 175, 55, 0.32);
  color: var(--red-700);
}
.value-card__title { font-size: 19px; margin-bottom: 11px; }
.value-card__desc { font-size: 14.5px; line-height: 1.8; color: var(--ink-500); }

/* 信息表 */
.info-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--cream-0);
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--cream-line);
  box-shadow: var(--shadow-s);
}
.info-table tr { border-bottom: 1px solid var(--cream-line); }
.info-table tr:last-child { border-bottom: none; }
.info-table th {
  width: 172px;
  padding: 18px 24px;
  text-align: left;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--red-800);
  background: var(--cream-2);
  vertical-align: top;
  white-space: nowrap;
}
.info-table td {
  padding: 18px 24px;
  font-size: 15px;
  color: var(--ink-600);
  line-height: 1.75;
}

/* ---------- 15. 联系方式 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: start; }

.contact-item {
  display: flex;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px dashed var(--cream-line);
}
.contact-item:last-child { border-bottom: none; }

.contact-item__icon {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  border-radius: var(--radius-s);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(140deg, rgba(196, 30, 58, 0.08), rgba(212, 175, 55, 0.14));
  border: 1px solid rgba(212, 175, 55, 0.3);
  color: var(--red-700);
}
.contact-item__label {
  font-size: 13px;
  font-weight: 700;
  color: var(--gold-700);
  letter-spacing: 0.08em;
  margin-bottom: 5px;
}
.contact-item__value { font-size: 16.5px; font-weight: 700; color: var(--ink-800); line-height: 1.6; }
.contact-item__value--sm { font-size: 15.5px; font-weight: 600; color: var(--ink-600); }
.contact-item__value a:hover { color: var(--red-700); }

.contact-note {
  margin-top: 22px;
  padding: 20px 22px;
  border-radius: var(--radius-m);
  background: var(--cream-2);
  border: 1px solid rgba(212, 175, 55, 0.32);
  border-left: 4px solid var(--gold-400);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-600);
}
.contact-note strong { color: var(--red-800); }

/* 表单 */
.form-card {
  padding: 40px 38px;
  border-radius: var(--radius-l);
  background: var(--cream-0);
  border: 1px solid var(--cream-line);
  box-shadow: var(--shadow-m);
}
.form-card__title { font-size: 23px; margin-bottom: 10px; }
.form-card__desc { font-size: 14.5px; color: var(--ink-500); line-height: 1.8; margin-bottom: 28px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-700);
  margin-bottom: 8px;
}
.form-group label .req { color: var(--red-600); margin-left: 3px; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 15px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink-800);
  background: var(--cream-1);
  border: 1.5px solid var(--cream-line);
  border-radius: var(--radius-s);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
  outline: none;
}
.form-group textarea { resize: vertical; min-height: 112px; line-height: 1.7; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold-400);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.13);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--ink-300); }

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-400);
  margin: 4px 0 22px;
}
.form-consent input { width: auto; margin-top: 4px; flex-shrink: 0; accent-color: var(--red-600); }

.form-note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-400);
}

/* 地图/地址卡 */
.map-card {
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--cream-line);
  background: var(--cream-0);
  box-shadow: var(--shadow-s);
}
.map-card__body {
  padding: 26px 28px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.map-card__body .contact-item__icon { flex-shrink: 0; }

/* ---------- 16. 页脚 ---------- */
.footer {
  position: relative;
  background: linear-gradient(165deg, #2B0A10 0%, #1E060B 60%, #2B0A10 100%);
  color: rgba(255, 245, 235, 0.68);
  padding: 72px 0 0;
  overflow: hidden;
}
.footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(240, 214, 138, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 214, 138, 0.035) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
}
.footer > .container { position: relative; z-index: 1; }

.footer__top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(240, 214, 138, 0.14);
}

.footer__brand { display: flex; flex-direction: column; }

.footer .brand__name { color: var(--gold-200); }
.footer .brand__sub { color: rgba(240, 214, 138, 0.55); }

.footer__slogan {
  margin-top: 20px;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(255, 245, 235, 0.6);
  max-width: 320px;
}

.footer__col-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--gold-200);
  margin-bottom: 20px;
  letter-spacing: 0.06em;
}
.footer__links { display: grid; gap: 12px; }
.footer__links a {
  font-size: 14.5px;
  color: rgba(255, 245, 235, 0.66);
}
.footer__links a:hover { color: var(--gold-200); }

.footer__contact { display: grid; gap: 14px; }
.footer__contact-item {
  display: flex;
  gap: 11px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 245, 235, 0.66);
}
.footer__contact-item svg { flex-shrink: 0; margin-top: 4px; color: var(--gold-500); }

.footer__disclaimer {
  padding: 26px 0;
  font-size: 12.5px;
  line-height: 1.9;
  color: rgba(255, 245, 235, 0.42);
  border-bottom: 1px solid rgba(240, 214, 138, 0.1);
}
.footer__disclaimer strong { color: rgba(240, 214, 138, 0.75); }

.footer__bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 245, 235, 0.45);
}
.footer__bottom-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer__bottom-links a:hover { color: var(--gold-200); }

/* ---------- 17. 滚动进场 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }
.reveal-d4 { transition-delay: 0.32s; }

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

/* ---------- 18. 工具类 ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-40 { margin-top: 40px; }
.mt-56 { margin-top: 56px; }
.mt-72 { margin-top: 72px; }
.gold-rule {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.55), transparent);
  border: none;
  margin: 0;
}

/* ---------- 19. 响应式 ---------- */
@media (max-width: 1080px) {
  .hero__title { font-size: 46px; }
  .hero__title .line-sub { font-size: 26px; }
  .hero__inner { gap: 44px; }
  .split-block { gap: 44px; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 940px) {
  .nav__menu, .nav__cta { display: none; }
  .nav__toggle { display: flex; }

  .hero { padding: 56px 0 72px; }
  .hero__inner { grid-template-columns: 1fr; gap: 52px; }
  .hero__visual { max-width: 520px; }
  .term__float { right: 12px; }

  .split { grid-template-columns: 1fr; }
  .split-block { grid-template-columns: 1fr; gap: 40px; }
  .split-block--reverse .split-block__media { order: 0; }

  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid rgba(240, 214, 138, 0.13); }

  .steps { grid-template-columns: repeat(2, 1fr); gap: 36px 0; }
  .steps::before { display: none; }

  .cta-band { padding: 48px 36px; }
  .cta-band__inner { flex-direction: column; align-items: flex-start; gap: 30px; }

  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .section--tight { padding: 46px 0; }

  .sec-head { margin-bottom: 38px; }
  .sec-head__title { font-size: 28px; }
  .sec-head__desc { font-size: 15.5px; }

  .hero__title { font-size: 34px; }
  .hero__title .line-sub { font-size: 21px; }
  .hero__desc { font-size: 15.5px; }
  .hero__actions .btn { flex: 1 1 100%; }
  .hero__meta { gap: 10px 18px; }

  .page-hero { padding: 46px 0 44px; }
  .page-hero__title { font-size: 28px; }
  .page-hero__desc { font-size: 15.5px; }

  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .stat {
    border-right: none;
    border-bottom: 1px solid rgba(240, 214, 138, 0.13);
    padding: 32px 24px;
  }
  .stat:last-child { border-bottom: none; }
  .stat__num { font-size: 36px; }

  .steps { grid-template-columns: 1fr; }
  .step { padding: 0; }

  .split__card { padding: 32px 26px 30px; }
  .split__title { font-size: 22px; }

  .cta-band { padding: 38px 26px; border-radius: var(--radius-m); }
  .cta-band__title { font-size: 25px; }
  .cta-band__actions { width: 100%; }
  .cta-band__actions .btn { flex: 1 1 100%; }

  .form-card { padding: 30px 24px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }

  .info-table th { width: 108px; padding: 15px 16px; font-size: 13.5px; }
  .info-table td { padding: 15px 16px; font-size: 14.5px; }

  .footer { padding-top: 56px; }
  .footer__top { grid-template-columns: 1fr; gap: 34px; padding-bottom: 40px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 14px; }

  .term__float { position: static; margin-top: 16px; display: inline-block; }
  .media-frame { padding: 22px 18px; }
}