```css
/* ============================================================
   暖阁 · 母爱档案
   Warm Archive — 陪读妈妈·母爱永不下线
   设计语言：暖米色纸感 + 珊瑚橘 + 深青绿 + 拱门相框 + 手账胶带
   ============================================================ */

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

:root {
  --cream: #faf5ee;
  --cream-deep: #f1e6d8;
  --cream-card: #fffdf9;
  --coral: #e2705c;
  --coral-deep: #cf5a48;
  --coral-soft: #fae8e2;
  --teal: #3e8986;
  --teal-deep: #2d6663;
  --teal-soft: #e0eceb;
  --amber: #d99a4e;
  --amber-soft: #f8eedd;
  --text: #3d2e28;
  --text-soft: rgba(61, 46, 40, 0.66);
  --line: rgba(180, 130, 90, 0.18);
  --shadow-warm: 0 8px 28px rgba(170, 120, 80, 0.1);
  --shadow-lift: 0 16px 44px rgba(170, 120, 80, 0.17);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  overflow-x: hidden;
  background-color: var(--cream);
  background-image:
    radial-gradient(ellipse at 14% 16%, rgba(226, 112, 92, 0.07) 0%, transparent 44%),
    radial-gradient(ellipse at 86% 32%, rgba(62, 137, 134, 0.06) 0%, transparent 38%),
    radial-gradient(ellipse at 50% 88%, rgba(217, 154, 78, 0.06) 0%, transparent 36%),
    radial-gradient(circle at 24px 24px, rgba(217, 154, 78, 0.04) 1.5px, transparent 2px);
  background-size: auto, auto, auto, 48px 48px;
  background-attachment: fixed, fixed, fixed, scroll;
  color: var(--text);
  line-height: 1.75;
  letter-spacing: 0.01em;
}

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

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--cream);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(160deg, var(--coral), var(--amber));
  border-radius: 20px;
  border: 2px solid var(--cream);
}

a {
  -webkit-tap-highlight-color: transparent;
}

/* ============================================================
   核心布局
   ============================================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
  position: relative;
}

.section:nth-child(even) {
  background: linear-gradient(to bottom, rgba(241, 230, 216, 0.55), rgba(250, 245, 238, 0.2));
  border-top: 1px dashed rgba(217, 154, 78, 0.22);
  border-bottom: 1px dashed rgba(217, 154, 78, 0.22);
}

/* ============================================================
   导航 — 固定顶部，暖米色玻璃
   ============================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 245, 238, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.4s;
}

.site-header:hover {
  box-shadow: var(--shadow-warm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.16rem;
  text-decoration: none;
  color: var(--text);
  letter-spacing: 0.02em;
  transition: transform 0.3s;
}

.logo:hover {
  transform: scale(1.02);
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 14px 14px 14px 5px;
  background: linear-gradient(135deg, var(--coral), var(--amber));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 14px rgba(226, 112, 92, 0.3);
  transition: transform 0.35s;
}

.logo:hover .logo-icon {
  transform: rotate(-8deg) scale(1.05);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 4px 0;
  transition: color 0.25s;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  border-radius: 4px;
  background: var(--coral);
  transition: width 0.35s cubic-bezier(0.22, 0.68, 0.25, 1);
}

.main-nav a:hover {
  color: var(--coral);
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 8px 22px !important;
  border-radius: 24px !important;
  background: var(--coral);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(226, 112, 92, 0.3);
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
}

.nav-cta::after {
  display: none;
}

.nav-cta:hover {
  background: var(--coral-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(226, 112, 92, 0.4);
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1.5px solid var(--coral);
  border-radius: 14px;
  background: transparent;
  cursor: pointer;
  color: var(--coral);
  font-size: 1.2rem;
  transition: background 0.3s, transform 0.3s;
}

.menu-toggle:hover {
  background: var(--coral-soft);
  transform: scale(1.04);
}

/* ============================================================
   首页 Hero — 拱门相框 + 大标题
   ============================================================ */

.hero {
  min-height: 78vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 68px;
  background:
    radial-gradient(circle at 78% 38%, rgba(226, 112, 92, 0.09) 0%, transparent 42%),
    radial-gradient(circle at 22% 70%, rgba(62, 137, 134, 0.07) 0%, transparent 36%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 12%;
  right: 2%;
  width: 380px;
  height: 380px;
  border: 2px dashed rgba(217, 154, 78, 0.28);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 10%;
  left: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(62, 137, 134, 0.1), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .container {
  width: 100%;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 720px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 7px 18px;
  border-radius: 26px;
  margin-bottom: 22px;
  background: var(--coral-soft);
  color: var(--coral-deep);
  border: 1px dashed rgba(226, 112, 92, 0.45);
  transform: rotate(-1.5deg);
  transition: transform 0.3s;
}

.hero-eyebrow:hover {
  transform: rotate(0deg);
}

.hero h1 {
  font-size: clamp(2.4rem, 4.6vw, 3.8rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  color: var(--text);
}

.hero h1 .text-accent {
  color: var(--coral);
  text-decoration: underline;
  text-decoration-color: rgba(217, 154, 78, 0.55);
  text-decoration-thickness: 6px;
  text-underline-offset: 4px;
}

.hero p {
  font-size: 1.08rem;
  color: var(--text-soft);
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.85;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
  height: 480px;
  border-radius: 200px 200px 28px 28px;
  overflow: hidden;
  border: 7px solid #fff9f0;
  box-shadow: var(--shadow-lift);
  animation: floatY 7s ease-in-out infinite;
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(226, 112, 92, 0.1), transparent 35%);
  pointer-events: none;
}

/* ============================================================
   按钮
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 30px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.22, 0.68, 0.25, 1), box-shadow 0.35s, background 0.35s;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 100%;
  height: 100%;
  background: linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, 0.28) 50%, transparent 70%);
  transition: left 0.55s;
  pointer-events: none;
}

.btn:hover::before {
  left: 120%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--coral), var(--coral-deep));
  color: #fff;
  box-shadow: 0 6px 20px rgba(226, 112, 92, 0.32);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(226, 112, 92, 0.4);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--teal);
  color: var(--teal-deep);
}

.btn-outline:hover {
  background: rgba(62, 137, 134, 0.07);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(62, 137, 134, 0.15);
}

.btn:focus-visible,
.main-nav a:focus-visible,
.card-link:focus-visible,
.menu-toggle:focus-visible {
  outline: 3px solid rgba(226, 112, 92, 0.5);
  outline-offset: 3px;
}

/* ============================================================
   标签 / 标题
   ============================================================ */

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal-deep);
  padding: 6px 16px 6px 14px;
  margin-bottom: 14px;
  background: var(--teal-soft);
  border-radius: 0 16px 16px 0;
  border-left: 3px solid var(--teal);
}

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--text);
}

.section-label + .section-title::after {
  content: '';
  display: block;
  width: 56px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--coral), var(--amber));
  margin-top: 10px;
}

.section-desc {
  max-width: 620px;
  color: var(--text-soft);
  margin-bottom: 44px;
  font-size: 1rem;
  line-height: 1.85;
}

/* ============================================================
   卡片网格 — 手账胶带卡
   ============================================================ */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 32px 24px;
}

.category-card {
  position: relative;
  background: var(--cream-card);
  border-radius: 20px;
  padding: 32px 28px 28px;
  border: 1px solid rgba(217, 154, 78, 0.16);
  box-shadow: var(--shadow-warm);
  transition: transform 0.4s cubic-bezier(0.22, 0.68, 0.25, 1), box-shadow 0.4s;
}

.category-card::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%) rotate(-2deg);
  width: 92px;
  height: 24px;
  background: linear-gradient(160deg, rgba(217, 154, 78, 0.28), rgba(217, 154, 78, 0.14));
  border-left: 4px solid rgba(255, 255, 255, 0.6);
  border-right: 3px solid rgba(255, 255, 255, 0.4);
  border-radius: 3px;
  box-shadow: 0 2px 8px rgba(130, 85, 40, 0.08);
  pointer-events: none;
  z-index: 1;
  transition: transform 0.4s;
}

.category-card:hover {
  transform: translateY(-7px) rotate(0.4deg);
  box-shadow: var(--shadow-lift);
}

.category-card:hover::before {
  transform: translateX(-50%) rotate(-0.5deg) scale(1.06);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px 18px 18px 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.45rem;
  background: linear-gradient(135deg, var(--coral-soft), var(--amber-soft));
  color: var(--coral-deep);
  border: 1px solid rgba(226, 112, 92, 0.12);
}

.card-link {
  font-weight: 700;
  font-size: 0.86rem;
  text-decoration: none;
  color: var(--teal-deep);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  transition: color 0.3s, gap 0.3s;
}

.card-link::after {
  content: '→';
  font-size: 1rem;
  transition: transform 0.3s;
}

.category-card:hover .card-link {
  color: var(--coral);
  gap: 10px;
}

.category-card:hover .card-link::after {
  transform: translateX(4px);
}

/* ============================================================
   特性块
   ============================================================ */

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-image {
  position: relative;
  height: 400px;
  border-radius: 180px 180px 24px 24px;
  overflow: hidden;
  border: 6px solid #fff9f0;
  box-shadow: var(--shadow-warm);
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.22, 0.68, 0.25, 1);
}

.feature-image:hover img {
  transform: scale(1.05);
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(226, 112, 92, 0.1), transparent 32%);
  pointer-events: none;
}

.feature-text {
  position: relative;
}

.feature-text::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 0;
  width: 40px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--coral), var(--amber));
  opacity: 0.6;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

.feature-list li {
  padding: 9px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text);
  border-bottom: 1px dashed rgba(217, 154, 78, 0.15);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list li::before {
  content: '✦';
  font-weight: 700;
  color: var(--coral);
  font-size: 0.85rem;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--coral-soft);
}

/* ============================================================
   数据条
   ============================================================ */

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  background: var(--cream-card);
  padding: 32px 20px;
  border-radius: 20px;
  border: 1px solid rgba(217, 154, 78, 0.15);
  box-shadow: var(--shadow-warm);
  position: relative;
  transition: transform 0.4s cubic-bezier(0.22, 0.68, 0.25, 1), box-shadow 0.4s;
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
}

.stat-item::after {
  content: '';
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 3px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--coral), var(--amber));
}

.stat-number {
  font-size: 2.7rem;
  font-weight: 900;
  line-height: 1.15;
  background: linear-gradient(135deg, var(--coral), var(--amber));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--text-soft);
  margin-top: 8px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ============================================================
   内容墙
   ============================================================ */

.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  background: var(--cream-card);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(217, 154, 78, 0.14);
  box-shadow: var(--shadow-warm);
  transition: transform 0.4s cubic-bezier(0.22, 0.68, 0.25, 1), box-shadow 0.4s;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lift);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.55s cubic-bezier(0.22, 0.68, 0.25, 1);
}

.content-wall-item:hover img {
  transform: scale(1.06);
}

.content-wall-body {
  padding: 22px 20px 24px;
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.7;
}

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.content-wall-body p {
  color: var(--text-soft);
  font-size: 0.86rem;
  line-height: 1.7;
}

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

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--cream-card);
  border: 1px solid rgba(217, 154, 78, 0.16);
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow 0.35s, border-color 0.35s;
}

.faq-item:hover {
  box-shadow: var(--shadow-warm);
}

.faq-item.open {
  box-shadow: var(--shadow-warm);
  border-color: rgba(226, 112, 92, 0.28);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  user-select: none;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--coral);
  line-height: 1;
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.4s cubic-bezier(0.22, 0.68, 0.25, 1);
}

.faq-item.open .faq-question::after {
  transform: rotate(135deg);
}

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.85;
}

.faq-item.open .faq-answer {
  display: block;
  animation: faqFade 0.35s ease;
}

@keyframes faqFade {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.cta-banner {
  padding: 68px 32px;
  text-align: center;
  border-radius: 28px;
  background: linear-gradient(135deg, #e2705c 0%, #dd8a5a 50%, #cf5a48 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 50px rgba(226, 112, 92, 0.32);
}

.cta-banner::before,
.cta-banner::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner::before {
  width: 200px;
  height: 200px;
  border: 2px solid rgba(255, 255, 255, 0.22);
  top: -60px;
  right: -30px;
}

.cta-banner::after {
  width: 280px;
  height: 280px;
  border: 2px dashed rgba(255, 255, 255, 0.18);
  bottom: -100px;
  left: -50px;
}

.cta-banner h2 {
  color: #fff;
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(