/* =====================================================================
   秋晚权益商城 · 三大营销合作模式
   设计语言：Refined Luxury —— 深海军蓝 + 哑光金，编辑级排版
   ===================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  /* 主色：金 */
  --gold:        #C9A961;
  --gold-soft:   #D9BE86;
  --gold-light:  #E7D2A6;
  --gold-deep:   #A8893F;

  /* 深色基底 */
  --ink:         #1A1A2E;
  --ink-deep:    #0E0E1B;
  --ink-soft:    #23233B;
  --ink-line:    rgba(201,169,97,.22);

  /* 浅色基底 */
  --paper:       #FAF8F3;
  --paper-2:     #F3EFE6;
  --paper-3:     #ECE6D8;

  /* 文字 */
  --text:        #1A1A2E;
  --muted:       #4A5568;
  --muted-2:     #6B7280;
  --on-dark:     #EDE9DF;
  --on-dark-mut: #A7AFC2;

  /* 排版 */
  --f-display: "Noto Serif SC", "Cormorant Garamond", Georgia, serif;
  --f-body:    "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --f-num:     "Cormorant Garamond", "Noto Serif SC", Georgia, serif;

  /* 节奏 */
  --container: 1200px;
  --radius:    14px;
  --radius-sm: 10px;
  --shadow:    0 24px 60px -28px rgba(26,26,46,.28);
  --shadow-gold: 0 22px 50px -26px rgba(201,169,97,.45);

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--f-body);
  color: var(--text);
  background: var(--paper);
  line-height: 1.7;
  font-size: 16px;
  font-weight: 400;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

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

/* 选区配色 */
::selection { background: var(--gold); color: var(--ink-deep); }

/* ---------- 按钮 ---------- */
.btn {
  --btn-pad-y: 14px; --btn-pad-x: 30px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: var(--btn-pad-y) var(--btn-pad-x);
  font-family: var(--f-body);
  font-size: 15px; font-weight: 500; letter-spacing: .04em;
  border: 1px solid transparent; border-radius: 999px;
  cursor: pointer; transition: all .3s var(--ease);
  white-space: nowrap;
}
.btn--gold {
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  color: var(--ink-deep);
  box-shadow: var(--shadow-gold);
}
.btn--gold:hover { transform: translateY(-2px); filter: brightness(1.06); }
.btn--ghost {
  background: transparent; color: var(--on-dark);
  border-color: rgba(237,233,223,.4);
}
.btn--ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn--block { width: 100%; }

/* ---------- 滚动进度条 ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-light));
  z-index: 1000; transition: width .1s linear;
}

/* =====================================================================
   导航
   ===================================================================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(14,14,27,.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--ink-line);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.nav__brand { display: flex; align-items: baseline; gap: 8px; font-family: var(--f-display); }
.nav__brand-mark {
  font-size: 22px; font-weight: 700; color: var(--gold);
  letter-spacing: .08em;
}
.nav__brand-name {
  font-size: 17px; font-weight: 500; color: #fff; letter-spacing: .12em;
}
.nav__links { display: flex; gap: 30px; }
.nav__links a {
  font-size: 14px; color: rgba(237,233,223,.78); font-weight: 400;
  position: relative; padding: 6px 0;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--gold); transition: width .3s var(--ease);
}
.nav__links a:hover { color: #fff; }
.nav__links a:hover::after { width: 100%; }
.nav__links a.is-active { color: var(--gold); }
.nav__links a.is-active::after { width: 100%; }
.nav__cta { padding: 10px 24px; font-size: 14px; }
.nav__toggle {
  display: none; flex-direction: column; gap: 5px; width: 44px; height: 44px;
  align-items: center; justify-content: center; background: none; border: 0; cursor: pointer;
}
.nav__toggle span {
  width: 24px; height: 2px; background: #fff; transition: transform .3s var(--ease), opacity .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; flex-direction: column; gap: 4px;
  background: rgba(14,14,27,.96); backdrop-filter: blur(14px);
  padding: 12px 32px 24px; border-top: 1px solid var(--ink-line);
}
.nav__mobile a {
  padding: 12px 0; color: rgba(237,233,223,.85); font-size: 15px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav__mobile a:hover { color: var(--gold); }

/* =====================================================================
   通用区块
   ===================================================================== */
.section { padding: 120px 0; position: relative; }
.section--light { background: var(--paper); }
.section--tint  { background: var(--paper-2); }
.section--dark  { background: var(--ink); color: var(--on-dark); }

.section__head { margin-bottom: 64px; max-width: 760px; }
.section__head--center { margin-inline: auto; text-align: center; }
.section__eyebrow {
  font-family: var(--f-num);
  font-size: 15px; letter-spacing: .42em; text-transform: uppercase;
  color: var(--gold-deep); margin-bottom: 16px; font-weight: 500;
}
.section--dark .section__eyebrow { color: var(--gold); }
.section__title {
  font-family: var(--f-display);
  font-size: clamp(28px, 4vw, 44px); font-weight: 700; line-height: 1.25;
  color: var(--text); letter-spacing: .02em;
}
.section--dark .section__title { color: #fff; }
.section__desc {
  margin-top: 18px; font-size: 17px; color: var(--muted); line-height: 1.8;
  max-width: 620px;
}
.section--dark .section__desc { color: var(--on-dark-mut); }
.section__head--center .section__desc { margin-inline: auto; }

/* =====================================================================
   1. Hero
   ===================================================================== */
.hero {
  position: relative; min-height: 100vh; display: flex; flex-direction: column;
  justify-content: center; color: #fff; overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.08); animation: heroZoom 18s ease-out forwards;
}
@keyframes heroZoom { to { transform: scale(1); } }
.hero__overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(14,14,27,.94) 0%, rgba(14,14,27,.78) 42%, rgba(14,14,27,.4) 100%),
    linear-gradient(0deg, rgba(14,14,27,.85), rgba(14,14,27,.2) 60%);
}
.hero__grain {
  position: absolute; inset: 0; opacity: .35; mix-blend-mode: overlay; pointer-events: none;
  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='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}
.hero__content { position: relative; z-index: 2; padding-top: 80px; }
.hero__eyebrow {
  font-family: var(--f-num);
  font-size: 15px; letter-spacing: .4em; color: var(--gold);
  font-weight: 500; margin-bottom: 24px;
}
.hero__title {
  font-family: var(--f-display);
  font-size: clamp(48px, 8vw, 92px); font-weight: 900; line-height: 1.05;
  letter-spacing: .04em; margin-bottom: 8px;
  text-shadow: 0 2px 40px rgba(0,0,0,.4);
}
.hero__subtitle {
  font-family: var(--f-display);
  font-size: clamp(20px, 3vw, 30px); font-weight: 500;
  color: var(--gold-light); letter-spacing: .08em; margin-bottom: 32px;
}
.hero__tags {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  font-size: 15px; color: #A0AEC0; letter-spacing: .06em; margin-bottom: 40px;
}
.hero__tags i { color: var(--gold); font-style: normal; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__foot {
  position: relative; z-index: 2; margin-top: 80px;
  font-size: 12px; color: rgba(237,233,223,.55); letter-spacing: .08em;
}
.hero__divider { margin: 0 10px; color: var(--gold); }
.hero__scroll {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  z-index: 2; width: 1px; height: 56px;
}
.hero__scroll-line {
  display: block; width: 1px; height: 100%;
  background: linear-gradient(var(--gold), transparent);
  animation: scrollHint 2.2s ease-in-out infinite;
}
@keyframes scrollHint {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* =====================================================================
   2. 三大模式卡片
   ===================================================================== */
.models-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.model-card {
  position: relative; padding: 44px 34px 38px;
  background: #fff; border: 1px solid var(--paper-3); border-radius: var(--radius);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
  overflow: hidden;
}
.model-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold-soft), var(--gold)); transform: scaleX(0); transform-origin: left;
  transition: transform .5s var(--ease);
}
.model-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); border-color: transparent; }
.model-card:hover::before { transform: scaleX(1); }
.model-card__num {
  font-family: var(--f-num); font-size: 52px; font-weight: 600;
  color: var(--paper-3); line-height: 1; margin-bottom: 18px;
  transition: color .4s var(--ease);
}
.model-card:hover .model-card__num { color: var(--gold-light); }
.model-card__icon {
  width: 40px; height: 40px; color: var(--gold); margin-bottom: 18px;
}
.model-card__icon svg { width: 100%; height: 100%; }
.model-card__name {
  font-family: var(--f-display); font-size: 23px; font-weight: 700;
  color: var(--text); margin-bottom: 12px;
}
.model-card__desc { font-size: 15px; color: var(--muted); line-height: 1.85; margin-bottom: 22px; }
.model-card__fit {
  font-size: 14px; color: var(--gold-deep); font-weight: 500;
  padding-top: 18px; border-top: 1px dashed var(--paper-3);
}
.model-card__fit span { color: var(--muted-2); font-weight: 400; }
.model-card--featured {
  background: linear-gradient(160deg, var(--ink) 0%, var(--ink-soft) 100%);
  color: var(--on-dark); border-color: var(--ink-line);
}
.model-card--featured .model-card__name { color: #fff; }
.model-card--featured .model-card__desc { color: var(--on-dark-mut); }
.model-card--featured .model-card__fit { border-top-color: var(--ink-line); color: var(--gold-light); }
.model-card--featured .model-card__fit span { color: var(--on-dark-mut); }
.model-card--featured .model-card__num { color: rgba(201,169,97,.18); }
.model-card--featured:hover .model-card__num { color: var(--gold); }
.model-card__badge {
  position: absolute; top: 20px; right: 20px;
  font-size: 12px; font-weight: 600; letter-spacing: .1em;
  padding: 5px 12px; border-radius: 999px;
  background: var(--gold); color: var(--ink-deep);
}

/* =====================================================================
   3. 痛点
   ===================================================================== */
.pains-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-bottom: 48px;
}
.pain-card {
  position: relative; padding: 40px 32px;
  background: var(--ink-soft); border: 1px solid var(--ink-line); border-radius: var(--radius);
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.pain-card:hover { transform: translateY(-6px); border-color: var(--gold); }
.pain-card__num {
  font-family: var(--f-num); font-size: 44px; font-weight: 600;
  color: var(--gold); line-height: 1; margin-bottom: 18px; opacity: .85;
}
.pain-card__name {
  font-family: var(--f-display); font-size: 22px; font-weight: 700;
  color: #fff; margin-bottom: 14px;
}
.pain-card__desc { font-size: 15px; color: var(--on-dark-mut); line-height: 1.85; }
.solution-banner {
  display: flex; align-items: center; gap: 32px; flex-wrap: wrap;
  padding: 32px 40px; border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(201,169,97,.14), rgba(201,169,97,.04));
  border: 1px solid var(--ink-line);
}
.solution-banner__label {
  flex: 0 0 auto; font-family: var(--f-display); font-size: 20px; font-weight: 700;
  color: var(--gold); padding-right: 32px; border-right: 1px solid var(--ink-line);
}
.solution-banner__text { font-size: 17px; color: var(--on-dark); line-height: 1.8; }

/* =====================================================================
   方案区块 公共
   ===================================================================== */
.plan-head { margin-bottom: 56px; }
.plan-head__tag {
  display: inline-block; font-size: 14px; font-weight: 600; letter-spacing: .12em;
  color: var(--gold-deep); padding: 6px 16px; border: 1px solid var(--gold);
  border-radius: 999px; margin-bottom: 22px;
}
.plan-head__tag--gold { background: var(--gold); color: var(--ink-deep); }
.plan-head__title {
  font-family: var(--f-display); font-size: clamp(28px, 4vw, 44px); font-weight: 700;
  color: var(--text); margin-bottom: 16px; line-height: 1.25;
}
.plan-head__desc { font-size: 17px; color: var(--muted); max-width: 720px; line-height: 1.8; }

.plan-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start;
}
.plan-block { padding: 8px 4px; }
.plan-block--card {
  background: #fff; border: 1px solid var(--paper-3); border-radius: var(--radius);
  padding: 40px 38px; box-shadow: 0 12px 40px -28px rgba(26,26,46,.3);
}
.section--tint .plan-block--card { background: #fff; }
.plan-block__title {
  font-family: var(--f-display); font-size: 22px; font-weight: 700; color: var(--text);
  margin-bottom: 28px; padding-bottom: 14px; border-bottom: 2px solid var(--gold);
  display: inline-block;
}

/* 实施过程 列表 */
.step-list li { padding: 18px 0; border-bottom: 1px dashed var(--paper-3); }
.step-list li:last-child { border-bottom: 0; }
.step-list__name { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.step-list__desc { font-size: 15px; color: var(--muted); }
.step-list--numbered li { display: flex; gap: 18px; align-items: flex-start; }
.step-list__n {
  flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--f-num); font-size: 18px; font-weight: 600;
  background: var(--paper-3); color: var(--gold-deep);
  border: 1px solid var(--gold-light);
}

/* 实现条件 */
.cond-list li { display: flex; gap: 16px; align-items: flex-start; padding: 16px 0; }
.cond-list__dot {
  flex: 0 0 auto; width: 10px; height: 10px; margin-top: 9px; border-radius: 50%;
  background: var(--gold); box-shadow: 0 0 0 4px rgba(201,169,97,.18);
}
.cond-list__name { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.cond-list__desc { font-size: 14px; color: var(--muted); }

/* 优势列表 */
.adv-list li { display: flex; gap: 16px; align-items: flex-start; padding: 16px 0; border-bottom: 1px dashed var(--paper-3); }
.adv-list li:last-child { border-bottom: 0; }
.adv-list__icon {
  flex: 0 0 auto; width: 30px; height: 30px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(201,169,97,.14); color: var(--gold-deep);
}
.adv-list__icon svg { width: 16px; height: 16px; }
.adv-list__name { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.adv-list__desc { font-size: 14px; color: var(--muted); }
.plan-block__note {
  margin-top: 24px; padding: 16px 20px; border-radius: var(--radius-sm);
  background: rgba(201,169,97,.1); color: var(--gold-deep);
  font-size: 14px; font-weight: 500; text-align: center;
}

.plan-value {
  margin-top: 28px; padding: 22px 24px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--ink), var(--ink-soft)); color: var(--on-dark);
}
.plan-value__label { font-size: 13px; letter-spacing: .16em; color: var(--gold); margin-bottom: 8px; }
.plan-value__text { font-size: 16px; font-weight: 500; line-height: 1.7; }

/* =====================================================================
   6. 多重收益
   ===================================================================== */
.benefits-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.benefit-card {
  padding: 44px 38px; border-radius: var(--radius);
  background: var(--ink-soft); border: 1px solid var(--ink-line);
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.benefit-card:hover { transform: translateY(-6px); border-color: var(--gold); }
.benefit-card--featured {
  background: linear-gradient(160deg, rgba(201,169,97,.16), rgba(201,169,97,.04));
  border-color: var(--gold);
}
.benefit-card__head { margin-bottom: 18px; }
.benefit-card__title {
  font-family: var(--f-display); font-size: 24px; font-weight: 700; color: #fff;
  padding-left: 16px; border-left: 3px solid var(--gold);
}
.benefit-card__desc { font-size: 16px; color: var(--on-dark-mut); line-height: 1.85; margin-bottom: 28px; }
.benefit-card__points { padding-top: 26px; border-top: 1px solid var(--ink-line); }
.benefit-card__label { font-size: 13px; letter-spacing: .16em; color: var(--gold); margin-bottom: 16px; }
.benefit-card__points li {
  position: relative; padding-left: 24px; padding-bottom: 12px;
  font-size: 15px; color: var(--on-dark); line-height: 1.7;
}
.benefit-card__points li::before {
  content: ""; position: absolute; left: 0; top: 10px; width: 8px; height: 1px; background: var(--gold);
}

/* =====================================================================
   8. 对比表
   ===================================================================== */
.compare-wrap {
  overflow-x: auto; border-radius: var(--radius);
  box-shadow: 0 12px 40px -28px rgba(26,26,46,.3);
  -webkit-overflow-scrolling: touch;
}
.compare-table {
  width: 100%; border-collapse: collapse; min-width: 720px;
  background: #fff; overflow: hidden;
}
.compare-table th, .compare-table td {
  padding: 20px 22px; text-align: center; font-size: 15px;
  border-bottom: 1px solid var(--paper-3);
}
.compare-table thead th {
  background: var(--ink); color: #fff; font-family: var(--f-display);
  font-weight: 600; font-size: 16px; letter-spacing: .04em;
  border-bottom: 0;
}
.compare-table td { color: var(--muted); }
.compare-table__dim {
  text-align: left; font-weight: 600; color: var(--text); background: var(--paper-2);
}
.compare-table__hi {
  background: rgba(201,169,97,.1); color: var(--text); font-weight: 600;
}
.compare-table thead .compare-table__hi { background: var(--gold); color: var(--ink-deep); }
.compare-table tbody tr:hover td { background: rgba(201,169,97,.05); }
.compare-table tbody tr:hover .compare-table__hi { background: rgba(201,169,97,.16); }
.compare-note {
  margin-top: 28px; text-align: center; font-size: 16px; color: var(--gold-deep);
  font-weight: 500; max-width: 820px; margin-inline: auto; line-height: 1.7;
}

/* =====================================================================
   9. 合作流程
   ===================================================================== */
.process-flow {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px;
  position: relative; margin-bottom: 56px;
}
.process-flow::before {
  content: ""; position: absolute; top: 28px; left: 10%; right: 10%; height: 1px;
  background: repeating-linear-gradient(90deg, var(--gold) 0 8px, transparent 8px 16px);
  z-index: 0;
}
.process-step {
  position: relative; z-index: 1; text-align: center; padding: 0 8px;
}
.process-step__num {
  width: 56px; height: 56px; margin: 0 auto 20px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--f-num); font-size: 22px; font-weight: 600;
  background: #fff; color: var(--ink); border: 2px solid var(--gold);
  box-shadow: 0 0 0 6px var(--paper); transition: all .4s var(--ease);
}
.process-step:hover .process-step__num {
  background: var(--gold); color: var(--ink-deep); transform: translateY(-4px);
}
.process-step__name {
  font-family: var(--f-display); font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 10px;
}
.process-step__desc { font-size: 14px; color: var(--muted); line-height: 1.7; }
.process-foot { text-align: center; }
.process-foot__hi {
  font-family: var(--f-display); font-size: 24px; font-weight: 700; color: var(--gold-deep); margin-bottom: 8px;
}
.process-foot__sub { font-size: 15px; color: var(--muted); margin-bottom: 28px; }

/* =====================================================================
   10. 适用门店
   ===================================================================== */
.fit-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: start; }
.fit-types__title, .fit-solve__title {
  font-family: var(--f-display); font-size: 22px; font-weight: 700; color: var(--text);
  margin-bottom: 26px; padding-bottom: 14px; border-bottom: 2px solid var(--gold);
  display: inline-block;
}
.fit-types__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.fit-type {
  padding: 24px 26px; background: #fff; border: 1px solid var(--paper-3); border-radius: var(--radius-sm);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.fit-type:hover { transform: translateY(-4px); box-shadow: 0 14px 30px -22px rgba(26,26,46,.3); }
.fit-type__name { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.fit-type__name::before { content: "◆"; color: var(--gold); margin-right: 8px; font-size: 11px; }
.fit-type__desc { font-size: 14px; color: var(--muted); }
.solve-list li {
  position: relative; padding: 14px 0 14px 26px; font-size: 16px; color: var(--text);
  border-bottom: 1px dashed var(--paper-3);
}
.solve-list__dot {
  position: absolute; left: 0; top: 22px; width: 8px; height: 8px; border-radius: 50%;
  background: var(--gold);
}
.fit-solve__tag {
  margin-top: 26px; padding: 18px 22px; border-radius: var(--radius-sm);
  background: var(--ink); color: var(--gold-light); font-size: 16px; font-weight: 500;
  text-align: center; letter-spacing: .04em;
}

/* =====================================================================
   11. 联系
   ===================================================================== */
.contact-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: start; }
.contact-reasons__title {
  font-family: var(--f-display); font-size: 24px; font-weight: 700; color: #fff; margin-bottom: 28px;
  padding-bottom: 14px; border-bottom: 1px solid var(--ink-line); display: inline-block;
}
.reason-list li { display: flex; gap: 20px; align-items: flex-start; padding: 20px 0; border-bottom: 1px solid var(--ink-line); }
.reason-list__n {
  flex: 0 0 auto; font-family: var(--f-num); font-size: 32px; font-weight: 600; line-height: 1;
  color: var(--gold); min-width: 40px;
}
.reason-list__name { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 6px; }
.reason-list__desc { font-size: 15px; color: var(--on-dark-mut); }
.contact-card {
  background: #fff; border-radius: var(--radius); padding: 44px 40px;
  box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.contact-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-light));
}
.contact-card__title {
  font-family: var(--f-display); font-size: 24px; font-weight: 700; color: var(--text);
  margin-bottom: 28px;
}
.contact-item { display: flex; gap: 18px; align-items: flex-start; padding: 18px 0; border-bottom: 1px dashed var(--paper-3); }
.contact-item:last-of-type { border-bottom: 0; }
.contact-item__icon {
  flex: 0 0 auto; width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(201,169,97,.12); color: var(--gold-deep);
}
.contact-item__icon svg { width: 22px; height: 22px; }
.contact-item__label { font-size: 13px; color: var(--muted-2); letter-spacing: .08em; margin-bottom: 4px; }
.contact-item__value { font-size: 16px; font-weight: 600; color: var(--text); }
.contact-item__value a { color: var(--gold-deep); border-bottom: 1px solid transparent; }
.contact-item__value a:hover { border-bottom-color: var(--gold); }
.contact-card__note {
  margin: 24px 0 20px; padding: 14px; text-align: center;
  background: var(--paper-2); border-radius: var(--radius-sm);
  font-size: 14px; color: var(--gold-deep); font-weight: 500;
}

/* =====================================================================
   12. 感谢 / 页脚
   ===================================================================== */
.thanks {
  position: relative; padding: 130px 0 60px; text-align: center; color: #fff;
  background: var(--ink-deep); overflow: hidden;
}
.thanks__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 50% 0%, rgba(201,169,97,.2), transparent 55%),
    radial-gradient(circle at 20% 100%, rgba(201,169,97,.08), transparent 50%);
}
.thanks__content { position: relative; z-index: 1; }
.thanks__title {
  font-family: var(--f-display); font-size: clamp(44px, 7vw, 80px); font-weight: 900;
  letter-spacing: .12em; line-height: 1.1; margin-bottom: 10px;
}
.thanks__en {
  font-family: var(--f-num); font-size: 18px; letter-spacing: .5em; color: var(--gold);
  margin-bottom: 28px; text-indent: .5em;
}
.thanks__sub { font-size: 17px; color: var(--on-dark-mut); margin-bottom: 36px; }
.thanks__line { width: 64px; height: 2px; margin: 0 auto 36px; background: var(--gold); }
.thanks__company { font-family: var(--f-display); font-size: 19px; font-weight: 600; margin-bottom: 12px; }
.thanks__meta { font-size: 14px; color: var(--on-dark-mut); margin-bottom: 36px; letter-spacing: .04em; }
.thanks__meta a { color: var(--gold-light); }
.thanks__meta a:hover { color: var(--gold); }
.thanks__copy {
  margin-top: 60px; padding-top: 28px; border-top: 1px solid var(--ink-line);
  font-size: 13px; color: rgba(237,233,223,.4); letter-spacing: .04em;
}

/* =====================================================================
   回到顶部
   ===================================================================== */
.to-top {
  position: fixed; right: 28px; bottom: 28px; z-index: 90;
  width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--gold);
  background: rgba(14,14,27,.85); color: var(--gold); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(8px); transition: all .3s var(--ease);
  opacity: 0; transform: translateY(20px);
}
.to-top.is-visible { opacity: 1; transform: translateY(0); }
.to-top:hover { background: var(--gold); color: var(--ink-deep); }
.to-top svg { width: 20px; height: 20px; }

/* =====================================================================
   滚动揭示动画
   ===================================================================== */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.reveal.is-in { opacity: 1; transform: none; }

/* =====================================================================
   响应式
   ===================================================================== */
@media (max-width: 980px) {
  .section { padding: 88px 0; }
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .nav__mobile.is-open { display: flex; }
  .models-grid, .pains-grid { grid-template-columns: 1fr; }
  .plan-grid, .benefits-grid, .fit-grid, .contact-grid { grid-template-columns: 1fr; }
  .process-flow { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .process-flow::before { display: none; }
  .solution-banner { flex-direction: column; align-items: flex-start; }
  .solution-banner__label { border-right: 0; border-bottom: 1px solid var(--ink-line); padding: 0 0 16px; }
}

@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .section__head { margin-bottom: 44px; }
  .model-card, .pain-card, .benefit-card, .plan-block--card, .contact-card { padding: 32px 24px; }
  .fit-types__grid { grid-template-columns: 1fr; }
  .process-flow { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .hero__actions .btn { width: 100%; }
  .compare-table th, .compare-table td { padding: 14px 12px; font-size: 13px; }
  .reason-list__n { font-size: 26px; min-width: 32px; }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .hero__bg { transform: none; animation: none; }
}