/* ══════════════════════════════════════════════════════════════
   黑料今日 · DESIGN SYSTEM
   风格：PAPER PULP / 猛料印刷所 —— 奶油纸张 × 电紫 × 酸性青柠
   特点：新粗野主义硬边阴影 + 杂志级超重排版 + 微旋转贴纸语言
   ══════════════════════════════════════════════════════════════ */

:root{
  --paper:      #FBF6EE;
  --paper-deep: #F2EADD;
  --card:       #FFFFFF;
  --ink:        #1A1430;
  --ink-soft:   #625B7A;
  --violet:     #5B21F0;
  --violet-dp:  #3C10B4;
  --lime:       #D8FF36;
  --coral:      #FF4D6D;
  --sky:        #C7E5FF;
  --line:       #1A1430;
  --shadow-lg:  8px 8px 0 var(--ink);
  --shadow:     6px 6px 0 var(--ink);
  --shadow-sm:  4px 4px 0 var(--ink);
  --radius:     18px;
  --ease:       cubic-bezier(.22,1,.36,1);
}

/* ── 基础重置 ─────────────────────────────────────────────── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
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: radial-gradient(rgba(26,20,48,.07) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--lime); color: var(--ink); }
img { display:block; max-width:100%; }
a { color:inherit; }
:focus-visible { outline:3px solid var(--violet); outline-offset:3px; border-radius:4px; }

/* ── 核心布局 ─────────────────────────────────────────────── */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:96px 0; position:relative; }
.section:nth-child(even) {
  background:#F5EFE3;
  border-top:2px solid rgba(26,20,48,.08);
  border-bottom:2px solid rgba(26,20,48,.08);
}

/* ── 导航 ─────────────────────────────────────────────────── */
.site-header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background:rgba(251,246,238,.82);
  backdrop-filter:blur(14px) saturate(1.5);
  -webkit-backdrop-filter:blur(14px) saturate(1.5);
  border-bottom:2px solid var(--ink);
}
.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; letter-spacing:-.02em;
  text-decoration:none; color:var(--ink);
}
.logo-icon {
  width:38px; height:38px; border-radius:11px;
  display:flex; align-items:center; justify-content:center;
  font-size:1.05rem;
  background:var(--violet); color:var(--lime);
  border:2px solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  transform:rotate(-7deg);
  transition:transform .3s var(--ease);
}
.logo:hover .logo-icon { transform:rotate(6deg) scale(1.06); }
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a {
  text-decoration:none; font-size:.92rem; font-weight:700;
  letter-spacing:.02em; color:var(--ink);
  position:relative; padding:8px 0 10px;
  transition:color .2s;
}
.main-nav a::after {
  content:''; position:absolute; left:0; bottom:2px;
  width:100%; height:3px; background:var(--lime);
  transform:scaleX(0); transform-origin:right;
  transition:transform .35s var(--ease);
  border-radius:2px;
}
.main-nav a:hover { color:var(--violet); }
.main-nav a:hover::after { transform:scaleX(1); transform-origin:left; }
.nav-cta {
  padding:9px 22px !important; border-radius:11px;
  color:#fff !important; font-weight:800 !important;
  background:var(--violet);
  border:2px solid var(--ink);
  box-shadow:var(--shadow-sm);
  transition:transform .18s var(--ease), box-shadow .18s var(--ease), background .2s;
}
.nav-cta::after { display:none; }
.nav-cta:hover {
  background:var(--coral) !important; color:#fff !important;
  transform:translate(-2px,-2px);
  box-shadow:6px 6px 0 var(--ink);
}
.nav-cta:active { transform:translate(2px,2px); box-shadow:1px 1px 0 var(--ink); }
.menu-toggle {
  display:none; width:44px; height:40px; align-items:center; justify-content:center;
  background:var(--lime); border:2px solid var(--ink); border-radius:11px;
  box-shadow:3px 3px 0 var(--ink); cursor:pointer; font-size:1.1rem;
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  min-height:76vh; display:flex; align-items:center;
  padding:150px 0 90px; position:relative; overflow:hidden;
}
.hero::before {
  content:''; position:absolute;
  width:520px; height:520px; border-radius:50%;
  background:radial-gradient(circle at 30% 30%, rgba(216,255,54,.55), transparent 62%);
  top:-160px; right:-120px; filter:blur(6px); pointer-events:none;
}
.hero::after {
  content:''; position:absolute;
  width:400px; height:400px; border-radius:50%;
  background:radial-gradient(circle at 60% 40%, rgba(91,33,240,.16), transparent 65%);
  bottom:-180px; left:-140px; pointer-events:none;
}
.hero-content { max-width:760px; position:relative; z-index:2; }
.hero-eyebrow {
  display:inline-block; font-size:.82rem; font-weight:900;
  letter-spacing:.24em; text-transform:uppercase;
  padding:7px 18px; border-radius:999px; margin-bottom:26px;
  background:var(--lime); color:var(--ink);
  border:2px solid var(--ink); box-shadow:3px 3px 0 var(--ink);
  transform:rotate(-2deg);
}
.hero h1 {
  font-size:clamp(2.6rem, 6.4vw, 4.6rem);
  line-height:1.02; margin-bottom:24px;
  font-weight:900; letter-spacing:-.045em;
}
.hero h1 em, .hero h1 strong {
  font-style:normal;
  color:var(--violet);
  background:linear-gradient(transparent 62%, var(--lime) 62%);
  padding:0 .08em;
}
.hero p {
  font-size:1.12rem; opacity:.78; max-width:580px; margin-bottom:38px;
  color:var(--ink-soft); font-weight:500;
}
.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-lg);
  transform:rotate(-1.2deg);
  transition:transform .4s var(--ease);
}
.hero-image:hover { transform:rotate(0deg) translateY(-4px); }
.hero-image img { width:100%; height:auto; }

/* ── 按钮 ─────────────────────────────────────────────────── */
.btn {
  display:inline-flex; align-items:center; gap:9px;
  padding:13px 30px; border-radius:12px;
  font-weight:800; font-size:.95rem; letter-spacing:.01em;
  cursor:pointer; border:2px solid var(--ink);
  text-decoration:none; transition:.2s var(--ease);
}
.btn-primary {
  color:#fff; background:var(--violet);
  box-shadow:var(--shadow-sm);
}
.btn-primary:hover {
  background:var(--violet-dp);
  transform:translate(-2px,-2px);
  box-shadow:7px 7px 0 var(--ink);
}
.btn-outline {
  background:var(--card); border:2px solid var(--ink);
  color:var(--ink); box-shadow:var(--shadow-sm);
}
.btn-outline:hover {
  background:var(--lime);
  transform:translate(-2px,-2px);
  box-shadow:7px 7px 0 var(--ink);
}
.btn:active { transform:translate(2px,2px) !important; box-shadow:1px 1px 0 var(--ink) !important; }

/* ── 标签 / 标题 ──────────────────────────────────────────── */
.section-label {
  display:inline-flex; align-items:center; gap:10px;
  font-size:.76rem; font-weight:900; letter-spacing:.3em;
  text-transform:uppercase; margin-bottom:16px; color:var(--violet);
}
.section-label::before {
  content:''; width:30px; height:4px; border-radius:2px;
  background:var(--lime); border:1.5px solid var(--ink);
}
.section-title {
  font-size:clamp(1.85rem, 3.6vw, 2.9rem);
  margin-bottom:16px; font-weight:900; letter-spacing:-.035em; line-height:1.1;
}
.section-desc {
  max-width:640px; opacity:.78; margin-bottom:52px;
  color:var(--ink-soft); font-size:1.02rem; font-weight:500;
}

/* ── 卡片网格 ─────────────────────────────────────────────── */
.cards-grid {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(268px,1fr)); gap:26px;
}
.category-card {
  border-radius:var(--radius); padding:30px;
  background:var(--card);
  border:2px solid var(--ink);
  box-shadow:5px 5px 0 var(--ink);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease);
  position:relative; overflow:hidden;
}
.category-card::before {
  content:''; position:absolute; inset:0;
  background:linear-gradient(135deg, rgba(91,33,240,.05), transparent 55%);
  opacity:0; transition:opacity .3s;
}
.category-card:hover { transform:translate(-4px,-4px); box-shadow:10px 10px 0 var(--ink); }
.category-card:hover::before { opacity:1; }
.category-card h3 { font-size:1.15rem; font-weight:900; margin-bottom:8px; letter-spacing:-.02em; }
.category-card p { font-size:.9rem; color:var(--ink-soft); margin-bottom:16px; line-height:1.7; }
.card-icon {
  width:52px; height:52px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; font-size:1.35rem;
  background:var(--lime); border:2px solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
}
.category-card:nth-child(2n) .card-icon { background:var(--sky); }
.category-card:nth-child(3n) .card-icon { background:var(--coral); color:#fff; }
.category-card:nth-child(4n) .card-icon { background:var(--violet); color:var(--lime); }
.card-link {
  font-weight:900; font-size:.85rem; text-decoration:none;
  color:var(--violet); letter-spacing:.02em;
  display:inline-flex; align-items:center; gap:6px;
}
.card-link::after { content:'→'; transition:transform .25s var(--ease); }
.category-card:hover .card-link::after { transform:translateX(6px); }

/* ── 特性块 ───────────────────────────────────────────────── */
.feature-block {
  display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center;
}
.feature-image {
  border-radius:var(--radius); overflow:hidden;
  border:2px solid var(--ink); box-shadow:var(--shadow-lg);
  transform:rotate(1deg);
}
.feature-image img { width:100%; height:auto; }
.feature-text h2 {
  font-size:clamp(1.6rem,3vw,2.3rem); font-weight:900;
  letter-spacing:-.03em; line-height:1.15; margin-bottom:16px;
}
.feature-text p { color:var(--ink-soft); margin-bottom:22px; font-weight:500; }
.feature-list { list-style:none; }
.feature-list li {
  padding:8px 0; display:flex; align-items:center; gap:12px;
  font-weight:600; font-size:.96rem;
}
.feature-list li::before {
  content:'✓'; font-weight:900; flex:0 0 auto;
  width:24px; height:24px; border-radius:50%;
  display:inline-flex; align-items:center; justify-content:center;
  font-size:.75rem; color:var(--ink);
  background:var(--lime); border:2px solid var(--ink);
}

/* ── 数据条 ───────────────────────────────────────────────── */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:26px; text-align:center; }
.stat-item {
  padding:30px 20px; border-radius:var(--radius);
  background:var(--card); border:2px solid var(--ink);
  box-shadow:5px 5px 0 var(--ink);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease);
}
.stat-item:hover { transform:translate(-3px,-3px); box-shadow:9px 9px 0 var(--ink); }
.stat-number {
  font-size:clamp(2rem,3.6vw,2.9rem); font-weight:900;
  letter-spacing:-.05em; line-height:1;
  color:var(--violet); font-variant-numeric:tabular-nums;
}
.stat-item:nth-child(2n) .stat-number { color:var(--coral); }
.stat-item:nth-child(3n) .stat-number { color:var(--ink); background:linear-gradient(transparent 60%, var(--lime) 60%); display:inline-block; }
.stat-label {
  font-size:.86rem; color:var(--ink-soft); margin-top:10px;
  font-weight:700; letter-spacing:.08em;
}

/* ── 内容墙 ───────────────────────────────────────────────── */
.content-wall {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(288px,1fr)); gap:26px;
}
.content-wall-item {
  border-radius:var(--radius); overflow:hidden;
  background:var(--card); border:2px solid var(--ink);
  box-shadow:5px 5px 0 var(--ink);
  transition:transform .22s var(--ease), box-shadow .22s var(--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);
  transition:transform .5s var(--ease);
}
.content-wall-item:hover img { transform:scale(1.045); }
.content-wall-body { padding:22px; }
.content-wall-body h3 { font-size:1.06rem; font-weight:900; margin-bottom:8px; letter-spacing:-.02em; }
.content-wall-body p { font-size:.88rem; color:var(--ink-soft); line-height:1.7; }

/* ── FAQ ──────────────────────────────────────────────────── */
.faq-list { max-width:820px; margin:0 auto; }
.faq-item {
  background:var(--card);
  border:2px solid var(--ink); border-radius:14px;
  margin-bottom:14px; overflow:hidden; cursor:pointer;
  box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease), box-shadow .2s var(--ease), background .25s;
}
.faq-item:hover { transform:translate(-2px,-2px); box-shadow:6px 6px 0 var(--ink); }
.faq-item .faq-question {
  padding:19px 54px 19px 22px; font-weight:800; font-size:1rem;
  display:flex; justify-content:space-between; align-items:center;
  position:relative; letter-spacing:-.01em;
}
.faq-item .faq-question::after {
  content:'+'; position:absolute; right:18px; top:50%;
  transform:translateY(-50%);
  width:28px; height:28px; border-radius:9px;
  display:flex; align-items:center; justify-content:center;
  font-weight:900; font-size:1.1rem;
  background:var(--lime); border:2px solid var(--ink);
  transition:transform .3s var(--ease), background .25s;
}
.faq-item .faq-answer {
  padding:0 22px 20px; display:none;
  color:var(--ink-soft); line-height:1.8; font-size:.94rem;
}
.faq-item.open { background:#FFFDF4; }
.faq-item.open .faq-question::after {
  transform:translateY(-50%) rotate(135deg);
  background:var(--coral); color:#fff;
}
.faq-item.open .faq-answer { display:block; animation:fadeUp .35s var(--ease); }
@keyframes fadeUp { from { opacity:0; transform:translateY(-6px);} to { opacity:1; transform:none;} }

/* ── CTA 横幅 ─────────────────────────────────────────────── */
.cta-banner {
  padding:64px 32px; text-align:center; border-radius:24px; color:#fff;
  background:linear-gradient(120deg, var(--violet) 0%, #8B5CF6 52%, var(--coral) 100%);
  border:2px solid var(--ink);
  box-shadow:10px 10px 0 var(--ink);
  position:relative; overflow:hidden;
}
.cta-banner::before {
  content:''; position:absolute; inset:0;
  background-image:radial-gradient(rgba(255,255,255,.22) 1.5px, transparent 1.5px);
  background-size:20px 20px; opacity:.5; pointer-events:none;
}
.cta-banner > * { position:relative; z-index:1; }
.cta-banner h2 {
  color:#fff; font-size:clamp(1.7rem,3.4vw,2.6rem);
  font-weight:900; letter-spacing:-.03em; margin-bottom:14px; line-height:1.15;
}
.cta-banner p { max-width:520px; margin:0 auto 30px; opacity:.92; font-weight:500; }
.cta-banner .btn-primary {
  background:#fff; color:var(--violet);
  border:2px solid var(--ink); box-shadow:5px 5px 0 var(--ink);
}
.cta-banner .btn-primary:hover {
  background:var(--lime); color:var(--ink);
  transform:translate(-2px,-2px); box-shadow:8px 8px 0 var(--ink);
}

/* ── 页脚 ─────────────────────────────────────────────────── */
.site-footer {
  padding:64px 0 30px; background:var(--paper-deep);
  border-top:2px solid var(--ink); position:relative;
}
.site-footer .container { position:relative; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:44px; }
.footer-brand .logo { margin-bottom:16px; }
.footer-brand p { font-size:.9rem; color:var(--ink-soft); max-width:300px; line-height:1.75; }
.footer-col h4 {
  font-size:.78rem; font-weight:900; letter-spacing:.24em;
  text-transform:uppercase; margin-bottom:16px; color:var(--violet);
}
.footer-col ul { list-style:none; }
.footer-col li { margin-bottom:10px; }
.footer-col a {
  text-decoration:none; font-size:.9rem; color:var(--ink-soft);
  font-weight:600; transition:color .2s, padding-left .2s var(--ease);
}
.footer-col a:hover { color:var(--violet); padding-left:6px; }
.footer-bottom {
  border-top:1px solid rgba(26,20,48,.18);
  margin-top:44px; padding-top:22px; text-align:center;
  font-size:.84rem; color:var(--ink-soft); font-weight:500;
}

/* ── 工具类 ───────────────────────────────────────────────── */
.text-accent { color:var(--violet); }
.text-center { text-align:center; }
.seo-description {
  max-width:640px; margin:0 auto 52px; opacity:.78;
  color:var(--ink-soft); font-size:1.02rem; font-weight:500;
}
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }
.text-center .section-label { justify-content:center; }
.text-center .section-desc { margin-left:auto; margin-right:auto; }

/* ── 响应式 ───────────────────────────────────────────────── */
@media (max-width: 900px){
  .footer-grid { grid-template-columns:1fr 1fr; gap:36px; }
}
@media (max-width: 768px){
  .section { padding:72px 0; }
  .feature-block { grid-template-columns:1fr; gap:38px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; }
  .main-nav.open {
    display:flex; flex-direction:column; align-items:stretch;
    position:absolute; top:72px; left:0; width:100%;
    background:var(--paper); padding:22px; gap:6px;
    border-bottom:2px solid var(--ink);
    box-shadow:0 12px 0 rgba(26,20,48,.08);
    animation:fadeUp .3s var(--ease);
  }
  .main-nav.open a { padding:13px 4px; border-bottom:1px dashed rgba(26,20,48,.14); font-size:1rem; }
  .main-nav.open a::after { display:none; }
  .main-nav.open .nav-cta { border-bottom:none; text-align:center; justify-content:center; margin-top:10px; }
  .hero { padding:130px 0 70px; min-height:auto; }
  .cta-banner { padding:48px 22px; box-shadow:7px 7px 0 var(--ink); }
}
@media (max-width: 480px){
  .cards-grid,.content-wall,.stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .hero-buttons { flex-direction:column; align-items:stretch; }
  .hero-buttons .btn { justify-content:center; }
  .hero h1 { font-size:2.35rem; }
  .category-card,.content-wall-item,.stat-item,.faq-item { box-shadow:4px 4px 0 var(--ink); }
  .cta-banner { box-shadow:5px 5px 0 var(--ink); }
}