/* ============================================
   小贝看番 · 帧帧入心
   Visual Identity: "Sakura Halftone Editorial"
   — Awwwards-inspired manga-modern design system
   ============================================ */

:root{
  --paper: #FFF9F2;
  --paper-deep: #FBF2E7;
  --ink: #2B2340;
  --ink-soft: rgba(43,35,64,.65);
  --sakura: #FF5470;
  --sakura-deep: #F0386B;
  --mint: #00C2A8;
  --mint-deep: #00A690;
  --amber: #FFB020;
  --periwinkle: #7A7CFF;
  --lavender: #B8C0FF;
  --line: rgba(43,35,64,.08);
  --shadow-sm: 0 2px 10px rgba(43,35,64,.06);
  --shadow-lg: 0 12px 40px rgba(43,35,64,.10);
}

/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x:hidden;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(255,180,80,.10) 0, transparent 26%),
    radial-gradient(circle at 85% 70%, rgba(122,124,255,.10) 0, transparent 32%),
    radial-gradient(circle at 50% 100%, rgba(0,194,168,.07) 0, transparent 30%);
  background-attachment: fixed;
}

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

/* 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: var(--paper-deep); }

/* ————— 网站导航 ————— */
.site-header{
  position: fixed;
  top:0; left:0;
  width:100%;
  z-index:1000;
  background: rgba(255,249,242,.86);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(255,255,255,.4) inset;
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:900;
  font-size:1.25rem;
  text-decoration:none;
  color: var(--ink);
  letter-spacing:-.02em;
}

.logo-icon{
  width:38px; height:38px;
  border-radius: 14px 14px 14px 4px;
  background: var(--sakura);
  color: #fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1rem;
  font-weight:900;
  box-shadow: 0 4px 14px rgba(255,84,112,.35);
  position: relative;
  transform: rotate(-6deg);
  transition: transform .3s cubic-bezier(.34,1.56,.64,1);
}

.logo:hover .logo-icon{
  transform: rotate(6deg) scale(1.08);
}

.main-nav{
  display:flex;
  align-items:center;
  gap:8px;
  list-style:none;
}

.main-nav a{
  text-decoration:none;
  font-size:.9rem;
  font-weight:600;
  color: var(--ink-soft);
  padding: 8px 14px;
  border-radius: 99px;
  transition: all .25s ease;
  position: relative;
}

.main-nav a:not(.nav-cta):hover{
  color: var(--sakura);
  background: rgba(255,84,112,.08);
  transform: translateY(-1px);
}

.main-nav .nav-cta{
  padding:10px 22px;
  border-radius:99px;
  color:#fff!important;
  font-weight:700;
  background: linear-gradient(135deg, var(--sakura), var(--sakura-deep));
  box-shadow: 0 6px 20px rgba(255,84,112,.35);
  transition: all .25s ease;
}

.main-nav .nav-cta:hover{
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 10px 28px rgba(255,84,112,.45);
}

.menu-toggle{
  display:none;
  width:44px; height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.7);
  align-items:center;
  justify-content:center;
  cursor:pointer;
  font-size:1.2rem;
  color: var(--ink);
}

/* ————— Hero 区域 ————— */
.hero{
  min-height: 88vh;
  display:flex;
  align-items:center;
  position:relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

/* 漫画速度线（装饰） */
.hero::before{
  content:'';
  position:absolute;
  top:0; left:0; right:0; bottom:0;
  background:
    repeating-linear-gradient(
      105deg,
      transparent 0 38px,
      rgba(255,84,112,.03) 38px 39px,
      transparent 39px 80px
    );
  pointer-events:none;
}

.hero-content{ max-width:760px; position:relative; z-index:2; }

.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.8rem;
  font-weight:800;
  letter-spacing:.08em;
  padding:8px 18px 8px 14px;
  border-radius:99px;
  background: var(--amber);
  color:#fff;
  margin-bottom:20px;
  box-shadow: 0 6px 20px rgba(255,176,32,.35);
  transform: rotate(-2deg);
}

.hero-eyebrow::before{
  content:'✦';
  font-size:.9rem;
}

.hero h1{
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height:1.08;
  margin-bottom:22px;
  font-weight:900;
  letter-spacing:-.03em;
  color: var(--ink);
}

/* 高亮标记效果 */
.hero h1 mark,
.hero h1 .hl{
  background: linear-gradient(transparent 62%, rgba(255,180,32,.55) 62% 92%, transparent 92%);
  color: inherit;
  padding: 0 .08em;
  border-radius: .1em;
}

.hero p{
  font-size:1.15rem;
  opacity:.72;
  max-width:560px;
  margin-bottom:34px;
  line-height:1.7;
}

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

.hero-image{
  border-radius: 24px 24px 24px 8px;
  overflow:hidden;
  box-shadow: var(--shadow-lg);
  transform: rotate(1.5deg);
  transition: transform .5s cubic-bezier(.34,1.56,.64,1);
  position: relative;
  z-index: 1;
}

.hero-image:hover{
  transform: rotate(1deg) scale(1.01);
}

.hero-image img{
  width:100%;
  height:auto;
  display:block;
}

/* ————— 按钮 ————— */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 30px;
  border-radius:99px;
  font-weight:700;
  font-size:.95rem;
  cursor:pointer;
  border:none;
  text-decoration:none;
  transition: all .3s cubic-bezier(.34,1.56,.64,1);
  letter-spacing:.01em;
}

.btn-primary{
  background: linear-gradient(135deg, var(--sakura), var(--sakura-deep));
  color:#fff;
  box-shadow: 0 8px 26px rgba(255,84,112,.35);
}

.btn-primary:hover{
  box-shadow: 0 14px 36px rgba(255,84,112,.45);
  transform: translateY(-3px);
}

.btn-outline{
  background:transparent;
  border:2px solid var(--ink);
  color: var(--ink);
  box-shadow: none;
}

.btn-outline:hover{
  background: var(--ink);
  color:#fff;
  transform: translateY(-3px);
}

/* ————— 标签/标题 ————— */
.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.78rem;
  font-weight:800;
  letter-spacing:.18em;
  margin-bottom:14px;
  color: var(--mint-deep);
  text-transform: uppercase;
}

.section-label::before{
  content:'●';
  font-size:.6rem;
  color: var(--sakura);
}

.section-title{
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom:14px;
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.15;
}

.section-desc{
  max-width:600px;
  opacity:.7;
  margin-bottom:44px;
  font-size:1.02rem;
  line-height:1.7;
}

/* ————— 卡片网格 ————— */
.cards-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:26px;
}

.category-card{
  background: #fff;
  border-radius: 24px 24px 24px 8px;
  padding:30px;
  border:1px solid var(--line);
  transition: all .35s cubic-bezier(.34,1.56,.64,1);
  position: relative;
  overflow:hidden;
}

/* 卡片上的小橙标贴 */
.category-card::after{
  content:'';
  position:absolute;
  top:16px; right:-24px;
  width:70px; height:22px;
  background: var(--amber);
  opacity:.14;
  transform: rotate(40deg);
  border-radius:3px;
}

.category-card:hover{
  transform: translateY(-6px) rotate(-.5deg);
  box-shadow: 0 16px 44px rgba(43,35,64,.12);
  border-color: transparent;
}

.card-icon{
  width:52px; height:52px;
  border-radius:18px 18px 18px 6px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  font-size:1.4rem;
  background: linear-gradient(135deg, rgba(255,84,112,.14), rgba(255,84,112,.05));
  color: var(--sakura);
  font-weight:900;
  transition: all .3s ease;
}

.category-card:nth-child(2) .card-icon{
  background: linear-gradient(135deg, rgba(0,194,168,.14), rgba(0,194,168,.05));
  color: var(--mint-deep);
}

.category-card:nth-child(3) .card-icon{
  background: linear-gradient(135deg, rgba(255,176,32,.16), rgba(255,176,32,.05));
  color: #C77E00;
}

.category-card:nth-child(4) .card-icon{
  background: linear-gradient(135deg, rgba(122,124,255,.16), rgba(122,124,255,.05));
  color: var(--periwinkle);
}

.category-card:hover .card-icon{
  transform: scale(1.08) rotate(-4deg);
}

.card-link{
  font-weight:700;
  font-size:.88rem;
  text-decoration:none;
  color: var(--sakura);
  display:inline-flex;
  align-items:center;
  gap:4px;
  transition: gap .25s ease;
}

.card-link:hover{ gap:8px; }

/* ————— 特性块 ————— */
.feature-block{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
}

.feature-image{
  border-radius: 24px 24px 24px 8px;
  overflow:hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
  background: var(--lavender);
}

.feature-image::before{
  content:'';
  display:block;
  padding-top: 72%;
}

.feature-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  position:absolute;
  top:0; left:0;
}

.feature-text{ }

.feature-list{
  list-style:none;
  margin-top:8px;
}

.feature-list li{
  padding:10px 0;
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:500;
  border-bottom: 1px dashed rgba(43,35,64,.1);
}

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

.feature-list li::before{
  content:'✓';
  font-weight:900;
  color: var(--mint);
  background: rgba(0,194,168,.12);
  width:24px; height:24px;
  border-radius:9px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:.75rem;
  flex-shrink:0;
}

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

.stat-item{
  background:#fff;
  padding:32px 24px;
  border-radius: 24px 24px 24px 8px;
  border:1px solid var(--line);
  position: relative;
  overflow:hidden;
  transition: all .3s ease;
}

.stat-item:hover{
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

.stat-number{
  font-size:clamp(2rem, 4vw, 2.6rem);
  font-weight:900;
  letter-spacing:-.04em;
  color: var(--ink);
  background: linear-gradient(135deg, var(--sakura), var(--amber));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label{
  font-size:.9rem;
  font-weight:600;
  opacity:.55;
  margin-top:8px;
  letter-spacing:.06em;
  text-transform: uppercase;
}

/* ————— 内容墙 ————— */
.content-wall{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:26px;
}

.content-wall-item{
  background:#fff;
  border-radius: 22px 22px 22px 8px;
  overflow:hidden;
  border:1px solid var(--line);
  transition: all .35s cubic-bezier(.34,1.56,.64,1);
  position: relative;
}

.content-wall-item:hover{
  transform: translateY(-6px) rotate(.4deg);
  box-shadow: 0 18px 44px rgba(43,35,64,.14);
}

.content-wall-item img{
  width:100%;
  height:210px;
  object-fit:cover;
  transition: transform .5s ease;
}

.content-wall-item:hover img{
  transform: scale(1.04);
}

.content-wall-body{
  padding:22px;
  font-weight:600;
  font-size:.95rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}

.content-wall-body::after{
  content:'→';
  font-weight:900;
  color: var(--sakura);
  transition: transform .25s ease;
}

.content-wall-item:hover .content-wall-body::after{
  transform: translateX(4px);
}

/* ————— FAQ ————— */
.faq-list{
  max-width:800px;
  margin:0 auto;
}

.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  margin-bottom:14px;
  overflow:hidden;
  cursor:pointer;
  transition: all .3s ease;
}

.faq-item:hover{
  border-color: rgba(255,84,112,.3);
  box-shadow: var(--shadow-sm);
}

.faq-item .faq-question{
  padding:20px 24px;
  font-weight:700;
  font-size:1rem;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
}

.faq-item .faq-question::after{
  content:'+';
  font-size:1.4rem;
  font-weight:400;
  color: var(--mint-deep);
  transition: transform .3s ease;
  flex-shrink:0;
}

.faq-item.open .faq-question::after{
  transform: rotate(45deg);
  color: var(--sakura);
}

.faq-item .faq-answer{
  padding:0 24px 20px;
  display:none;
  opacity:.7;
  line-height:1.75;
}

.faq-item.open{
  border-color: transparent;
  box-shadow: var(--shadow-lg);
}

.faq-item.open .faq-answer{ display:block; animation: faqFade .35s ease; }

@keyframes faqFade{
  from{ opacity:0; transform: translateY(-6px); }
  to{ opacity:1; transform: translateY(0); }
}

/* ————— CTA 横幅 ————— */
.cta-banner{
  padding:64px 40px;
  text-align:center;
  border-radius: 28px 28px 28px 10px;
  color:#fff;
  background:
    radial-gradient(circle at 15% 20%, rgba(255,255,255,.18), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(255,176,32,.3), transparent 45%),
    linear-gradient(135deg, var(--sakura), var(--sakura-deep));
  box-shadow: 0 20px 60px rgba(255,84,112,.4);
  position: relative;
  overflow:hidden;
}

/* 圆点纹理 */
.cta-banner::before{
  content:'';
  position:absolute;
  top:0; left:0; right:0; bottom:0;
  background-image: radial-gradient(rgba(255,255,255,.15) 1.5px, transparent 1.5px);
  background-size: 22px 22px;
  pointer-events:none;
  opacity:.5;
}

.cta-banner h2{
  color:#fff;
  font-size:clamp(1.6rem, 3vw, 2.4rem);
  font-weight:900;
  letter-spacing:-.02em;
  margin-bottom:10px;
  position: relative;
  z-index:1;
}

.cta-banner p{
  color: rgba(255,255,255,.85);
  margin-bottom:28px;
  position: relative;
  z-index:1;
}

.cta-banner .btn-primary{
  background:#fff;
  color: var(--sakura);
  box-shadow: 0 8px 26px rgba(0,0,0,.14);
  position:relative;
  z-index:1;
}

.cta-banner .btn-primary:hover{
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 34px rgba(0,0,0,.2);
}

/* ————— 页脚 ————— */
.site-footer{
  padding:64px 0 28px;
  background: var(--ink);
  color: rgba(255,255,255,.8);
  position: relative;
  overflow:hidden;
}

/* 页脚渐变弧光 */
.site-footer::before{
  content:'';
  position:absolute;
  top:-60px; left:50%;
  transform: translateX(-50%);
  width:600px; height:120px;
  background: radial-gradient(ellipse at center, rgba(255,84,112,.2), transparent 70%);
  border-radius:50%;
  pointer-events:none;
}

.site-footer .container{ position:relative; z-index:1; }

.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:48px;
}

.footer-brand p{
  font-size:.92rem;
  opacity:.6;
  max-width:280px;
  margin-top:14px;
  line-height:1.7;
}

.footer-col h4{
  color:#fff;
  font-size:.9rem;
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:.02em;
  text-transform: uppercase;
}

.footer-col a{
  display:block;
  color: rgba(255,255,255,.6);
  text-decoration:none;
  font-size:.88rem;
  padding:5px 0;
  transition: all .2s ease;
}

.footer-col a:hover{
  color: var(--amber);
  transform: translateX(4px);
}

.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:48px;
  padding-top:24px;
  text-align:center;
  font-size:.85rem;
  color: rgba(255,255,255,.45);
}

/* ————— 工具类 ————— */
.text-accent{
  color: var(--sakura);
  background: linear-gradient(135deg, var(--sakura), var(--amber));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-center{ text-align:center; }

.seo-description{
  max-width:600px;
  margin:0 auto 48px;
  opacity:.7;
  line-height:1.8;
  font-size:1.02rem;
}

.mt-0{ margin-top:0; }
.mb-0{ margin-bottom:0; }

/* ————— 自定义滚动条 ————— */
::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background: var(--paper-deep); }
::-webkit-scrollbar-thumb{
  background: linear-gradient(var(--sakura), var(--amber));
  border-radius:99px;
  border:2px solid var(--paper-deep);
}

/* ⚠️ 响应式 */
@media (max-width: 992px){
  .footer-grid{ grid-template-columns:1fr 1fr 1fr; }
}

@media (max-width: 768px){
  .feature-block{
    grid-template-columns:1fr;
    gap:40px;
  }

  .stats-bar{ grid-template-columns:repeat(2,1fr); gap:16px; }

  .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }

  .main-nav{
    display:none;
    flex-direction:column;
    position:absolute;
    top:72px;
    left:12px;
    right:12px;
    background: rgba(255,249,242,.98);
    backdrop-filter: blur(20px);
    border-radius:24px;
    padding:24px;
    gap:8px;
    box-shadow: var(--shadow-lg);
    border:1px solid var(--line);
  }

  .main-nav.open{
    display:flex;
    animation: navDrop .35s cubic-bezier(.34,1.56,.64,1);
  }

  .main-nav a{
    font-size:1rem;
    padding:14px 20px;
  }

  .menu-toggle{
    display:flex;
  }

  .hero{
    min-height:auto;
    padding:120px 0 64px;
    text-align:center;
  }

  .hero-content{ margin:0 auto; }

  .hero p{ margin-left:auto; margin-right:auto; }

  .hero-buttons{
    justify-content:center;
  }

  .cta-banner{
    padding:48px 28px;
  }
}

@keyframes navDrop{
  from{ opacity:0; transform: translateY(-12px) scale(.98); }
  to{ opacity:1; transform: translateY(0) scale(1); }
}

@media (max-width: 480px){
  .cards-grid,
  .content-wall,
  .stats-bar{
    grid-template-columns:1fr;
  }

  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }

  .hero-buttons{ flex-direction:column; width:100%; }

  .hero-buttons .btn{
    justify-content:center;
    width:100%;
  }

  .container{ padding:0 20px; }
  .section{ padding:56px 0; }
}