/* ============================================================
   黑料不打烊在线 — Design System
   Style: Editorial Cream / Neo-Editorial Tabloid
   Palette: Paper Cream × Electric Violet × Tangerine × Acid Lime
   ============================================================ */

:root{
  --paper:      #FCF8F1;
  --paper-2:    #F5EFE3;
  --paper-3:    #F6F2FF;
  --ink:        #171310;
  --ink-soft:   rgba(23,19,16,.62);
  --ink-faint:  rgba(23,19,16,.38);
  --line:       rgba(23,19,16,.13);
  --violet:     #5B2BE0;
  --violet-2:   #8B6BFF;
  --orange:     #FF5C1A;
  --lime:       #D8F14A;
  --radius-s:   12px;
  --radius-m:   18px;
  --radius-l:   28px;
  --shadow-key: 0 18px 40px -18px rgba(23,19,16,.30);
  --ease:       cubic-bezier(.2,.75,.3,1);
}

/* 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-color: var(--paper);
  background-image:
    radial-gradient(circle at 12% -8%, rgba(216,241,74,.42), transparent 42%),
    radial-gradient(circle at 92% 4%, rgba(91,43,224,.10), transparent 46%);
  background-repeat: no-repeat;
  color: var(--ink);
  line-height:1.68;
  font-size:16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* 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-3); }

.section:nth-child(even)::before {
  content:'';
  position:absolute; inset:0;
  background-image: radial-gradient(rgba(91,43,224,.09) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events:none;
  opacity:.55;
}

.section > .container { position:relative; z-index:1; }

/* ============================================================
   导航 — 固定顶部
   ============================================================ */
.site-header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background: rgba(252,248,241,.92);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border-bottom:1px 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:8px;
  font-weight:700; font-size:1.2rem; text-decoration:none; color:inherit;
  letter-spacing:-.02em;
}

.logo-icon {
  width:36px; height:36px; border-radius:11px;
  display:flex; align-items:center; justify-content:center;
  font-size:1rem; color:#fff;
  background: linear-gradient(140deg, var(--violet) 0%, var(--violet-2) 45%, var(--orange) 100%);
  box-shadow: 0 8px 18px -8px rgba(91,43,224,.85), inset 0 0 0 1.5px rgba(255,255,255,.25);
  transform: rotate(-6deg);
  transition: transform .35s var(--ease);
}

.logo:hover .logo-icon { transform: rotate(6deg) scale(1.06); }

.main-nav { display:flex; align-items:center; gap:24px; list-style:none; }

.main-nav a {
  text-decoration:none; font-size:.9rem; font-weight:500;
  transition:.2s var(--ease);
  color: var(--ink-soft);
  position:relative;
  padding:4px 0;
}

.main-nav a::after {
  content:'';
  position:absolute; left:0; bottom:-2px;
  width:0; height:2px;
  background: var(--orange);
  border-radius:2px;
  transition: width .3s var(--ease);
}

.main-nav a:hover { color: var(--ink); }
.main-nav a:hover::after { width:100%; }

.nav-cta {
  padding:8px 20px; border-radius:999px; color:#fff!important; font-weight:600;
  background: linear-gradient(120deg, var(--violet), var(--orange));
  box-shadow: 0 10px 22px -12px rgba(91,43,224,.95);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}

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

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 28px -12px rgba(255,92,26,.9);
}

.menu-toggle {
  display:none;
  width:42px; height:42px;
  align-items:center; justify-content:center;
  background:#fff; border:1px solid var(--line); border-radius:12px;
  font-size:1.1rem; cursor:pointer; color:var(--ink);
}

/* ============================================================
   首页 Hero
   ============================================================ */
.hero {
  min-height:70vh;
  display:flex; align-items:center;
  padding:148px 0 96px;
  position:relative;
  overflow:hidden;
}

.hero::before {
  content:'';
  position:absolute;
  width:520px; height:520px;
  right:-140px; top:40px;
  border-radius:50%;
  background: radial-gradient(circle at 30% 30%, rgba(216,241,74,.85), rgba(216,241,74,0) 68%);
  filter: blur(6px);
  pointer-events:none;
}

.hero::after {
  content:'';
  position:absolute;
  left:-120px; bottom:-160px;
  width:380px; height:380px;
  border-radius:50%;
  background: radial-gradient(circle, rgba(255,92,26,.22), rgba(255,92,26,0) 70%);
  pointer-events:none;
}

.hero .container { position:relative; z-index:2; }

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

.hero-eyebrow {
  display:inline-block; font-size:.85rem; font-weight:600;
  padding:4px 14px; border-radius:20px; margin-bottom:16px;
  background: var(--lime); color: var(--ink);
  letter-spacing:.06em;
  box-shadow: 0 6px 16px -10px rgba(216,241,74,1);
  transform: rotate(-1.2deg);
}

.hero h1 {
  font-size: clamp(2.2rem, 5.4vw, 3.9rem);
  line-height:1.14;
  margin-bottom:20px;
  font-weight:800;
  letter-spacing:-.035em;
}

.hero h1 .text-accent,
.hero h1 em {
  font-style:normal;
  background: linear-gradient(100deg, var(--violet) 0%, var(--orange) 70%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.hero p {
  font-size:1.1rem; opacity:.7; max-width:560px; margin-bottom:32px;
  color: var(--ink-soft);
}

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

.hero-image {
  border-radius: var(--radius-l);
  overflow:hidden;
  border:1.5px solid var(--ink);
  box-shadow: 14px 14px 0 0 var(--lime), 14px 14px 0 1.5px var(--ink);
  transition: box-shadow .35s var(--ease), transform .35s var(--ease);
}

.hero-image:hover {
  transform: translate(-4px,-4px);
  box-shadow: 20px 20px 0 0 var(--orange), 20px 20px 0 1.5px var(--ink);
}

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

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 28px; border-radius:999px;
  font-weight:600; cursor:pointer; border:none; text-decoration:none;
  transition:.28s var(--ease);
  font-size:.95rem;
  letter-spacing:.01em;
}

.btn-primary {
  color:#fff;
  background: linear-gradient(120deg, var(--violet) 0%, var(--orange) 100%);
  box-shadow: 0 14px 28px -14px rgba(91,43,224,.95);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 34px -14px rgba(255,92,26,.85);
}

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

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

/* ============================================================
   标签 / 标题
   ============================================================ */
.section-label {
  display:inline-block; font-size:.8rem; font-weight:600;
  letter-spacing:2px; margin-bottom:12px;
  color: var(--violet);
  text-transform: uppercase;
  padding-left:26px;
  position:relative;
}

.section-label::before {
  content:'';
  position:absolute; left:0; top:50%;
  width:18px; height:3px; margin-top:-1.5px;
  background: var(--orange);
  border-radius:3px;
}

.section-title {
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  margin-bottom:14px;
  font-weight:800;
  letter-spacing:-.03em;
  line-height:1.2;
}

.section-desc {
  max-width:600px; opacity:.72; margin-bottom:40px;
  color: var(--ink-soft);
  font-size:1.02rem;
}

/* ============================================================
   卡片网格
   ============================================================ */
.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:24px;
}

.category-card {
  border-radius: var(--radius-m);
  padding:28px;
  border:1px solid var(--line);
  background:#fff;
  position:relative;
  overflow:hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}

.category-card::before {
  content:'';
  position:absolute; left:0; top:0;
  width:100%; height:3px;
  background: linear-gradient(90deg, var(--violet), var(--orange), var(--lime));
  transform: scaleX(0);
  transform-origin:left;
  transition: transform .4s var(--ease);
}

.category-card:hover {
  transform: translateY(-6px);
  border-color: transparent;
  box-shadow: 10px 12px 0 -2px rgba(91,43,224,.14), 0 22px 40px -26px rgba(23,19,16,.55);
}

.category-card:hover::before { transform: scaleX(1); }

.card-icon {
  width:48px; height:48px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:16px; font-size:1.3rem;
  color: var(--violet);
  background: linear-gradient(140deg, rgba(91,43,224,.13), rgba(255,92,26,.15));
  border:1px solid rgba(91,43,224,.14);
}

.category-card:nth-child(3n+2) .card-icon {
  color: var(--orange);
  background: linear-gradient(140deg, rgba(255,92,26,.15), rgba(216,241,74,.35));
}

.category-card:nth-child(3n+3) .card-icon {
  color:#6b7a10;
  background: linear-gradient(140deg, rgba(216,241,74,.7), rgba(255,255,255,.6));
}

.category-card h3 { font-size:1.1rem; margin-bottom:8px; letter-spacing:-.01em; }

.card-link {
  font-weight:600; font-size:.85rem; text-decoration:none;
  color: var(--violet);
  display:inline-flex; align-items:center; gap:6px;
  margin-top:14px;
}

.card-link::after {
  content:'→';
  transition: transform .3s var(--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-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow: var(--shadow-key);
  position:relative;
}

.feature-image::after {
  content:'';
  position:absolute; inset:0;
  background: linear-gradient(160deg, rgba(91,43,224,.12), transparent 55%);
  pointer-events:none;
}

.feature-image img { width:100%; height:auto; }

.feature-text { }

.feature-text h3 { font-size:1.5rem; margin-bottom:12px; letter-spacing:-.02em; }

.feature-list { list-style:none; margin-top:18px; }

.feature-list li {
  padding:6px 0; display:flex; align-items:center; gap:8px;
  color: var(--ink-soft);
}

.feature-list li::before {
  content:'✓';
  font-weight:700;
  width:22px; height:22px; flex:0 0 22px;
  display:flex; align-items:center; justify-content:center;
  font-size:.72rem;
  border-radius:50%;
  background: var(--lime);
  color: var(--ink);
}

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

.stat-item {
  padding:24px;
  border-radius: var(--radius-m);
  border:1px solid var(--line);
  background:#fff;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 24px 40px -28px rgba(23,19,16,.7);
}

.stat-number {
  font-size: clamp(1.9rem, 3.4vw, 2.4rem);
  font-weight:800;
  letter-spacing:-.04em;
  line-height:1.1;
  background: linear-gradient(120deg, var(--violet), var(--orange));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.stat-item:nth-child(even) .stat-number {
  background: linear-gradient(120deg, var(--orange), #a4bb1f);
  -webkit-background-clip:text;
  background-clip:text;
}

.stat-label { font-size:0.9rem; opacity:.6; margin-top:6px; }

/* ============================================================
   内容墙
   ============================================================ */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:24px;
}

.content-wall-item {
  border-radius: var(--radius-m);
  overflow:hidden;
  border:1px solid var(--line);
  background:#fff;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
  position:relative;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 46px -30px rgba(23,19,16,.75);
}

.content-wall-item img {
  width:100%; height:200px; object-fit:cover;
  transition: transform .6s var(--ease);
}

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

.content-wall-body { padding:20px; }

.content-wall-body h4 { font-size:1.05rem; margin-bottom:8px; letter-spacing:-.01em; }
.content-wall-body p { font-size:.92rem; color: var(--ink-soft); }

.content-wall-item::after {
  content:'';
  position:absolute; top:14px; left:14px;
  width:10px; height:10px; border-radius:50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(216,241,74,.35);
}

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

.faq-item {
  border:1px solid var(--line);
  border-radius: var(--radius-s);
  margin-bottom:8px;
  overflow:hidden;
  cursor:pointer;
  background:#fff;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.faq-item:hover { border-color: rgba(91,43,224,.35); }

.faq-item .faq-question {
  padding:16px 20px; font-weight:600;
  display:flex; justify-content:space-between; align-items:center;
  gap:16px;
}

.faq-item .faq-question::after {
  content:'+';
  font-size:1.25rem; font-weight:400;
  color: var(--violet);
  line-height:1;
  transition: transform .3s var(--ease);
}

.faq-item .faq-answer {
  padding:0 20px 16px;
  display:none;
  opacity:.7;
  color: var(--ink-soft);
}

.faq-item.open {
  border-color: rgba(91,43,224,.4);
  box-shadow: 0 20px 36px -28px rgba(91,43,224,.85);
}

.faq-item.open .faq-question::after {
  content:'+';
  transform: rotate(135deg);
  color: var(--orange);
}

.faq-item.open .faq-answer { display:block; }

/* ============================================================
   CTA横幅
   ============================================================ */
.cta-banner {
  padding:56px 24px; text-align:center;
  border-radius: var(--radius-l);
  color:#fff;
  position:relative;
  overflow:hidden;
  background: linear-gradient(120deg, var(--violet) 0%, #7A3BF0 38%, var(--orange) 100%);
  box-shadow: 0 34px 60px -34px rgba(91,43,224,.95);
}

.cta-banner::before {
  content:'';
  position:absolute;
  width:340px; height:340px;
  right:-90px; top:-120px;
  border-radius:50%;
  background: radial-gradient(circle, rgba(216,241,74,.75), rgba(216,241,74,0) 68%);
  pointer-events:none;
}

.cta-banner::after {
  content:'';
  position:absolute;
  left:-80px; bottom:-140px;
  width:280px; height:280px;
  border-radius:50%;
  background: radial-gradient(circle, rgba(255,255,255,.28), rgba(255,255,255,0) 70%);
  pointer-events:none;
}

.cta-banner > * { position:relative; z-index:1; }

.cta-banner h2 {
  color:#fff;
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  letter-spacing:-.03em;
  margin-bottom:12px;
}

.cta-banner p { color: rgba(255,255,255,.82); margin-bottom:26px; }

.cta-banner .btn-primary {
  background:#fff;
  color: var(--violet);
  box-shadow: 0 14px 30px -16px rgba(0,0,0,.6);
}

.cta-banner .btn-primary:hover {
  color: var(--orange);
  transform: translateY(-3px) scale(1.02);
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  padding:56px 0 28px;
  background: var(--paper-2);
  border-top:1px solid var(--line);
  color: var(--ink);
}

.site-footer .container { }

.footer-grid {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
}

.footer-brand { }
.footer-brand p { color: var(--ink-soft); font-size:.92rem; margin-top:14px; max-width:320px; }

.footer-col { }

.footer-col h4 {
  font-size:.85rem;
  letter-spacing:.12em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom:16px;
  font-weight:700;
}

.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);
  transition: color .2s var(--ease), padding-left .25s var(--ease);
}

.footer-col a:hover {
  color: var(--orange);
  padding-left:5px;
}

.footer-bottom {
  border-top:1px solid var(--line);
  margin-top:40px; padding-top:20px;
  text-align:center; font-size:.85rem;
  color: var(--ink-faint);
}

/* ============================================================
   工具类
   ============================================================ */
.text-accent {
  background: linear-gradient(100deg, var(--violet), var(--orange));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

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

.seo-description {
  max-width:600px; margin:0 auto 48px;
  opacity:.72;
  color: var(--ink-soft);
}

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

/* ⚠️ 响应式 */
@media (max-width: 992px) {
  .footer-grid { grid-template-columns:1.6fr 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding:60px 0; }
  .hero { padding:120px 0 72px; }
  .hero::before { width:340px; height:340px; right:-140px; }

  .feature-block { grid-template-columns:1fr; gap:36px; }
  .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;
    position:absolute; top:68px; left:0; width:100%;
    background:#fff; padding:20px;
    gap:16px; align-items:flex-start;
    border-bottom:1px solid var(--line);
    box-shadow: 0 24px 40px -26px rgba(23,19,16,.5);
  }

  .main-nav.open a::after { display:none; }
  .main-nav.open .nav-cta { align-self:stretch; text-align:center; justify-content:center; }
}

@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; }
  .hero-buttons .btn { justify-content:center; width:100%; }
  .cta-banner { padding:44px 20px; }
}