/* ============================================================
   黑料王 — 设计系统 「证据板 / 硬核编辑部」
   风格：纸感米白 + 酸性荧光绿 + 爆料红，粗黑描边 + 硬阴影
   ============================================================ */

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

:root{
  --paper:#F6F2E8;
  --paper-2:#EDF6D5;
  --card:#FFFFFF;
  --ink:#171412;
  --ink-soft:rgba(23,20,18,.62);
  --line:#171412;
  --acid:#C9F227;
  --acid-deep:#A8D400;
  --punch:#FF2E63;
  --punch-soft:#FFE1E9;
  --shadow:5px 5px 0 var(--ink);
  --shadow-sm:3px 3px 0 var(--ink);
  --radius:6px;
}

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

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x:hidden;
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(23,20,18,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23,20,18,.05) 1px, transparent 1px);
  background-size:28px 28px;
  color:var(--ink);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

::selection{ background:var(--acid); color:var(--ink); }

img{ display:block; max-width:100%; }
a{ color:inherit; }

::-webkit-scrollbar{ width:12px; }
::-webkit-scrollbar-track{ background:var(--paper); border-left:2px solid var(--ink); }
::-webkit-scrollbar-thumb{ background:var(--punch); border:2px solid var(--ink); border-radius:0; }

/* 核心布局 — 必须居中 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }

.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:var(--paper-2); }
.section:nth-child(even)::before,
.section:nth-child(even)::after{
  content:'';
  position:absolute; left:0; width:100%; height:2px; background:var(--ink);
}
.section:nth-child(even)::before{ top:0; }
.section:nth-child(even)::after{ bottom:0; }

/* 导航 — 固定顶部 */
.site-header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background:rgba(246,242,232,0.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:2px solid var(--line);
}
.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:900; font-size:1.2rem; letter-spacing:-0.02em;
  text-decoration:none; color:inherit;
}
.logo:hover .logo-icon{ transform:rotate(-8deg) scale(1.05); }
.logo-icon {
  width:36px; height:36px; border-radius:6px;
  display:flex; align-items:center; justify-content:center;
  font-size:1rem; font-weight:900;
  background:var(--acid); color:var(--ink);
  border:2px solid var(--ink);
  box-shadow:var(--shadow-sm);
  transition:transform .25s cubic-bezier(.34,1.56,.64,1);
}
.main-nav { display:flex; align-items:center; gap:22px; list-style:none; }
.main-nav a {
  position:relative;
  text-decoration:none; font-size:.9rem; font-weight:700;
  letter-spacing:.02em; padding:4px 2px;
  transition:color .2s;
}
.main-nav a::after{
  content:''; position:absolute; left:0; bottom:0;
  width:0; height:3px; background:var(--punch);
  transition:width .25s ease;
}
.main-nav a:hover::after{ width:100%; }
.nav-cta {
  padding:8px 20px; border-radius:6px; color:#fff!important; font-weight:800;
  background:var(--punch);
  border:2px solid var(--ink);
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease, box-shadow .18s ease;
}
.nav-cta::after{ display:none; }
.nav-cta:hover{ transform:translate(-2px,-2px); box-shadow:5px 5px 0 var(--ink); }
.menu-toggle {
  display:none;
  width:42px; height:42px;
  align-items:center; justify-content:center;
  background:var(--acid);
  border:2px solid var(--ink);
  border-radius:6px;
  box-shadow:var(--shadow-sm);
  font-weight:900; font-size:1.1rem;
  cursor:pointer; color:var(--ink);
}

/* 首页Hero */
.hero {
  position:relative;
  min-height:70vh;
  display:flex; align-items:center;
  padding:150px 0 90px;
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute; top:-160px; right:-180px;
  width:640px; height:640px; border-radius:50%;
  background:radial-gradient(circle at 40% 40%, rgba(201,242,39,.85), rgba(201,242,39,0) 68%);
  pointer-events:none;
}
.hero::after{
  content:'EXCLUSIVE';
  position:absolute; bottom:26px; right:-10px;
  font-size:clamp(2.4rem,7vw,5.5rem);
  font-weight:900; letter-spacing:.06em;
  color:transparent;
  -webkit-text-stroke:2px rgba(23,20,18,.13);
  pointer-events:none; white-space:nowrap;
}
.hero-content { max-width:720px; position:relative; z-index:2; }
.hero-eyebrow {
  display:inline-block;
  font-size:.8rem; font-weight:900;
  letter-spacing:.18em; text-transform:uppercase;
  padding:6px 16px; border-radius:999px;
  margin-bottom:22px;
  background:var(--acid); color:var(--ink);
  border:2px solid var(--ink);
  box-shadow:var(--shadow-sm);
  transform:rotate(-1.5deg);
}
.hero h1 {
  font-size:clamp(2rem, 5.4vw, 3.5rem);
  font-weight:900;
  line-height:1.12;
  letter-spacing:-0.035em;
  margin-bottom:22px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(transparent 58%, var(--acid) 58%);
  padding:0 .08em;
}
.hero p {
  font-size:1.08rem; color:var(--ink-soft);
  max-width:560px; margin-bottom:34px;
}
.hero-buttons { display:flex; gap:16px; flex-wrap:wrap; }
.hero-image {
  border-radius:var(--radius); overflow:hidden;
  border:2px solid var(--ink);
  box-shadow:var(--shadow);
  background:var(--card);
}
.hero-image img { width:100%; height:auto; }

/* 按钮 */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 30px; border-radius:6px;
  font-weight:800; font-size:.95rem; letter-spacing:.01em;
  cursor:pointer; border:2px solid var(--ink);
  text-decoration:none;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  box-shadow:var(--shadow-sm);
}
.btn:hover{ transform:translate(-3px,-3px); box-shadow:7px 7px 0 var(--ink); }
.btn:active{ transform:translate(1px,1px); box-shadow:1px 1px 0 var(--ink); }
.btn-primary { color:#fff; background:var(--punch); }
.btn-outline { background:var(--card); color:var(--ink); }
.btn-outline:hover{ background:var(--acid); }

/* 标签/标题 */
.section-label {
  display:inline-block;
  font-size:.72rem; font-weight:900;
  letter-spacing:.24em; text-transform:uppercase;
  margin-bottom:14px;
  padding:4px 12px;
  background:var(--ink); color:var(--acid);
  border-radius:3px;
}
.section-title {
  font-size:clamp(1.6rem, 3.6vw, 2.4rem);
  font-weight:900;
  line-height:1.2;
  letter-spacing:-0.03em;
  margin-bottom:16px;
}
.section-title::after{
  content:''; display:block;
  width:64px; height:6px; margin-top:14px;
  background:var(--punch);
}
.text-center .section-title::after{ margin-left:auto; margin-right:auto; }
.section-desc {
  max-width:600px; color:var(--ink-soft);
  margin-bottom:44px;
}
.text-center .section-desc{ margin-left:auto; margin-right:auto; }

/* 卡片网格 */
.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:26px;
}
.category-card {
  border-radius:var(--radius);
  padding:28px;
  background:var(--card);
  border:2px solid var(--ink);
  box-shadow:var(--shadow);
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
  position:relative;
}
.category-card:hover {
  transform:translate(-4px,-4px);
  box-shadow:10px 10px 0 var(--ink);
  background:#FFFDF7;
}
.category-card:nth-child(4n+2){ background:#FBFEF0; }
.category-card:nth-child(4n+4){ background:#FFF7F9; }
.card-icon {
  width:48px; height:48px; border-radius:6px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; font-size:1.3rem;
  background:var(--acid);
  border:2px solid var(--ink);
  box-shadow:var(--shadow-sm);
}
.category-card:nth-child(even) .card-icon{ background:var(--punch-soft); }
.card-link {
  font-weight:900; font-size:.85rem;
  letter-spacing:.04em;
  text-decoration:none;
  color:var(--punch);
  display:inline-flex; align-items:center; gap:6px;
}
.card-link::after{
  content:'→';
  transition:transform .2s ease;
}
.card-link:hover::after{ transform:translateX(5px); }

/* 特性块 */
.feature-block {
  display:grid; grid-template-columns:1fr 1fr;
  gap:56px; align-items:center;
}
.feature-image {
  border-radius:var(--radius); overflow:hidden;
  border:2px solid var(--ink);
  box-shadow:8px 8px 0 var(--acid);
  background:var(--card);
}
.feature-image img { width:100%; height:auto; }
.feature-text { position:relative; }
.feature-list { list-style:none; margin-top:22px; }
.feature-list li {
  padding:8px 0;
  display:flex; align-items:center; gap:12px;
  font-weight:600;
  border-bottom:1px dashed rgba(23,20,18,.22);
}
.feature-list li::before {
  content:'✓';
  font-weight:900; font-size:.75rem;
  flex:0 0 22px; height:22px;
  display:flex; align-items:center; justify-content:center;
  background:var(--acid);
  border:2px solid var(--ink);
  border-radius:50%;
  color:var(--ink);
}

/* 数据条 */
.stats-bar {
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:24px; text-align:center;
}
.stat-item {
  padding:26px 18px; border-radius:var(--radius);
  background:var(--card);
  border:2px solid var(--ink);
  box-shadow:var(--shadow);
  transition:transform .2s ease;
}
.stat-item:hover{ transform:translateY(-5px); }
.stat-item:nth-child(2){ background:var(--acid); }
.stat-item:nth-child(3){ background:var(--punch-soft); }
.stat-number {
  font-size:clamp(1.7rem, 3.4vw, 2.3rem);
  font-weight:900;
  letter-spacing:-0.04em;
  line-height:1.1;
}
.stat-item:nth-child(odd) .stat-number{ color:var(--punch); }
.stat-label {
  font-size:.82rem; font-weight:700;
  letter-spacing:.08em;
  color:var(--ink-soft);
  margin-top:8px;
}

/* 内容墙 */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:26px;
}
.content-wall-item {
  border-radius:var(--radius); overflow:hidden;
  background:var(--card);
  border:2px solid var(--ink);
  box-shadow:var(--shadow);
  transition:transform .2s ease, box-shadow .2s ease;
}
.content-wall-item:hover {
  transform:translate(-4px,-4px);
  box-shadow:10px 10px 0 var(--ink);
}
.content-wall-item img {
  width:100%; height:200px; object-fit:cover;
  border-bottom:2px solid var(--ink);
  filter:grayscale(1) contrast(1.08);
  transition:filter .35s ease, transform .5s ease;
}
.content-wall-item:hover img{ filter:none; transform:scale(1.04); }
.content-wall-body { padding:20px; }
.content-wall-body h3{
  font-size:1.05rem; font-weight:900;
  letter-spacing:-0.01em; margin-bottom:8px;
}
.content-wall-body p{ font-size:.9rem; color:var(--ink-soft); }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item {
  background:var(--card);
  border:2px solid var(--ink);
  border-radius:var(--radius);
  margin-bottom:12px;
  overflow:hidden; cursor:pointer;
  transition:box-shadow .18s ease, transform .18s ease, background .2s ease;
}
.faq-item:hover{ transform:translate(-2px,-2px); box-shadow:var(--shadow-sm); }
.faq-item .faq-question {
  padding:18px 22px; font-weight:800;
  display:flex; justify-content:space-between; align-items:center; gap:16px;
}
.faq-item .faq-question::after{
  content:'+'; font-weight:900; font-size:1.2rem;
  flex:0 0 26px; height:26px;
  display:flex; align-items:center; justify-content:center;
  background:var(--acid); border:2px solid var(--ink); border-radius:50%;
  line-height:1;
}
.faq-item.open{ background:#FBFEF0; box-shadow:var(--shadow); }
.faq-item.open .faq-question::after{ content:'–'; background:var(--punch); color:#fff; }
.faq-item .faq-answer {
  padding:0 22px 18px;
  display:none;
  color:var(--ink-soft);
  border-top:1px dashed rgba(23,20,18,.25);
  padding-top:16px;
}
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner {
  position:relative;
  padding:60px 28px; text-align:center;
  border-radius:var(--radius); color:#fff;
  background:linear-gradient(118deg,#FF2E63 0%, #FF6A3D 62%, #FFB03A 100%);
  border:2px solid var(--ink);
  box-shadow:10px 10px 0 var(--ink);
  overflow:hidden;
}
.cta-banner::before{
  content:'';
  position:absolute; inset:0;
  background-image:repeating-linear-gradient(45deg, rgba(255,255,255,.14) 0 10px, transparent 10px 22px);
  pointer-events:none;
}
.cta-banner > *{ position:relative; z-index:2; }
.cta-banner h2 {
  color:#fff;
  font-size:clamp(1.5rem,3.4vw,2.2rem);
  font-weight:900; letter-spacing:-0.03em;
  margin-bottom:12px;
}
.cta-banner p{ color:rgba(255,255,255,.92); margin-bottom:26px; }
.cta-banner .btn-primary {
  background:#fff; color:var(--ink)!important;
  border:2px solid var(--ink);
  box-shadow:var(--shadow-sm);
}

/* 页脚 */
.site-footer {
  padding:56px 0 28px;
  background:#EDE7D8;
  border-top:2px solid var(--ink);
}
.footer-grid {
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px;
}
.footer-brand { max-width:340px; }
.footer-brand p{ font-size:.9rem; color:var(--ink-soft); margin-top:14px; }
.footer-col h4{
  font-size:.78rem; font-weight:900;
  letter-spacing:.2em; text-transform:uppercase;
  margin-bottom:16px;
  padding-bottom:8px;
  border-bottom:2px solid var(--ink);
  display:inline-block;
}
.footer-col ul{ list-style:none; }
.footer-col li{ margin-bottom:10px; }
.footer-col a{
  font-size:.9rem; font-weight:500;
  text-decoration:none; color:var(--ink-soft);
  transition:color .18s ease, padding-left .18s ease;
}
.footer-col a:hover{ color:var(--punch); padding-left:6px; }
.footer-bottom {
  border-top:1px dashed rgba(23,20,18,.3);
  margin-top:44px; padding-top:22px;
  text-align:center; font-size:.82rem;
  color:var(--ink-soft);
  letter-spacing:.02em;
}

/* 工具类 */
.text-accent { color:var(--punch); font-weight:900; }
.text-center { text-align:center; }
.seo-description {
  max-width:600px; margin:0 auto 48px;
  color:var(--ink-soft);
}
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

a:focus-visible,
.btn:focus-visible,
.faq-item:focus-visible{
  outline:3px solid var(--punch);
  outline-offset:3px;
}

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .hero{ padding:120px 0 70px; }
  .hero::after{ display:none; }
  .feature-block { grid-template-columns:1fr; gap:32px; }
  .feature-image{ box-shadow:6px 6px 0 var(--acid); }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; }
  .main-nav.open {
    display:flex; flex-direction:column; align-items:flex-start;
    position:absolute; top:68px; left:0; width:100%;
    background:var(--paper);
    border-bottom:2px solid var(--ink);
    box-shadow:0 10px 0 rgba(23,20,18,.12);
    padding:22px 24px; gap:18px;
  }
  .main-nav.open .nav-cta{ margin-top:6px; }
}

@media (max-width: 480px) {
  .section{ padding:60px 0; }
  .cards-grid,.content-wall,.stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .hero-buttons { flex-direction:column; align-items:stretch; }
  .btn{ justify-content:center; }
  .cta-banner{ padding:44px 20px; box-shadow:6px 6px 0 var(--ink); }
}