/* ==========================================================================
   黑料不打烊吃瓜网 — 视觉设计系统
   风格：新野兽派 · 杂志拼贴 · 奶油纸张 / 珊瑚橙 × 深青 × 柠檬黄
   ========================================================================== */

:root{
  --paper:      #FFF6EC;
  --paper-2:    #F6ECDD;
  --paper-3:    #EFE3D2;
  --card:       #FFFFFF;
  --ink:        #1A1512;
  --ink-soft:   #6A5C51;
  --coral:      #FF5A36;
  --coral-deep: #E23E1A;
  --teal:       #0E8F86;
  --teal-soft:  #D7F0ED;
  --lemon:      #FFD84D;
  --lilac:      #CDB9FF;
  --line:       #1A1512;
  --shadow-sm:  4px 4px 0 var(--ink);
  --shadow-md:  6px 6px 0 var(--ink);
  --shadow-lg:  10px 10px 0 var(--ink);
  --r:          14px;
  --r-lg:       20px;
}

/* ---------- 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:
    linear-gradient(90deg, rgba(26,21,18,.035) 1px, transparent 1px),
    linear-gradient(rgba(26,21,18,.035) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--ink);
  line-height: 1.65;
  letter-spacing: .01em;
}

img{ display:block; max-width:100%; }
a{ color:var(--ink); }
::selection{ background:var(--lemon); color:var(--ink); }

h1,h2,h3,h4{ font-weight:900; letter-spacing:-.02em; line-height:1.15; }

/* ---------- 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-2);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

/* ---------- 导航 ---------- */
.site-header {
  position: fixed; top:0; left:0; width:100%; z-index:1000;
  background: rgba(255,246,236,.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--ink);
}

.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:1.14rem; letter-spacing:-.03em;
  text-decoration:none; color:var(--ink); white-space:nowrap;
}

.logo-icon {
  width:38px; height:38px; border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  font-size:1.05rem; font-weight:900; color:#fff;
  background: linear-gradient(140deg, var(--coral), var(--coral-deep));
  border:2px solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  transform: rotate(-6deg);
  transition: transform .25s cubic-bezier(.34,1.56,.64,1);
}
.logo:hover .logo-icon{ transform: rotate(6deg) scale(1.06); }

.main-nav { display:flex; align-items:center; gap:22px; list-style:none; }

.main-nav a {
  text-decoration:none; font-size:.9rem; font-weight:700;
  color:var(--ink); position:relative; padding:4px 2px;
  transition:color .18s ease;
}
.main-nav a::after{
  content:''; position:absolute; left:0; bottom:-2px;
  width:100%; height:3px; background:var(--lemon);
  transform: scaleX(0); transform-origin:left;
  transition: transform .25s cubic-bezier(.65,0,.35,1);
  z-index:-1;
}
.main-nav a:hover{ color:var(--coral-deep); }
.main-nav a:hover::after{ transform:scaleX(1); height:10px; bottom:-4px; }

.nav-cta {
  padding:9px 20px !important; border-radius:10px;
  background: var(--teal); color:#fff !important;
  border:2px solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  font-weight:800 !important;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.nav-cta::after{ display:none; }
.nav-cta:hover{
  background: var(--coral) !important;
  transform: translate(-1px,-1px);
  box-shadow:5px 5px 0 var(--ink);
}

.menu-toggle {
  display:none; align-items:center; justify-content:center;
  width:42px; height:42px; border-radius:10px; cursor:pointer;
  background: var(--lemon); border:2px solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  font-size:1.1rem; font-weight:900; color:var(--ink);
}

/* ---------- Hero ---------- */
.hero {
  min-height:70vh; display:flex; align-items:center;
  padding: 140px 0 90px;
  position:relative; overflow:hidden;
}

.hero::before{
  content:''; position:absolute; top:-120px; right:-140px;
  width:520px; height:520px; border-radius:50%;
  background: radial-gradient(circle at 35% 35%, var(--lemon), #FFB43D 70%, transparent 72%);
  opacity:.55; filter: blur(2px); z-index:0;
  pointer-events:none;
}
.hero::after{
  content:''; position:absolute; left:-90px; bottom:-160px;
  width:380px; height:380px; border-radius:50%;
  background: radial-gradient(circle at 50% 50%, var(--teal-soft), transparent 70%);
  z-index:0; pointer-events:none;
}

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

.hero-content { max-width:760px; }

.hero-eyebrow {
  display:inline-block; font-size:.82rem; font-weight:900;
  padding:6px 16px; border-radius:999px; margin-bottom:22px;
  letter-spacing:.12em; text-transform:uppercase;
  color: var(--ink);
  background: var(--lemon);
  border:2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  transform: rotate(-1.5deg);
}

.hero h1 {
  font-size: clamp(2.4rem, 5.6vw, 4.1rem);
  line-height:1.06; margin-bottom:22px;
  font-weight:900; letter-spacing:-.04em;
}
.hero h1 em{
  font-style:normal; color:var(--coral);
  -webkit-text-stroke: 0;
  background: linear-gradient(180deg, transparent 62%, var(--lemon) 62%);
  padding:0 .06em;
}

.hero p {
  font-size:1.08rem; color:var(--ink-soft);
  max-width:560px; margin-bottom:34px; font-weight:500;
}

.hero-buttons { display:flex; gap:16px; flex-wrap:wrap; }

.hero-image {
  border-radius: var(--r-lg); overflow:hidden;
  border:2px solid var(--ink);
  box-shadow: var(--shadow-lg);
  background:var(--paper-3);
}
.hero-image img { width:100%; height:auto; }

/* ---------- 按钮 ---------- */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:14px 30px; border-radius:12px;
  font-weight:800; font-size:.95rem; cursor:pointer;
  text-decoration:none; letter-spacing:.01em;
  border:2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform .14s ease, box-shadow .14s ease, background .18s ease, color .18s ease;
}
.btn:active{ transform: translate(3px,3px); box-shadow: 1px 1px 0 var(--ink); }

.btn-primary {
  color:#fff;
  background: linear-gradient(140deg, var(--coral), var(--coral-deep));
}
.btn-primary:hover{
  background: linear-gradient(140deg, var(--teal), #0A6F68);
  transform: translate(-2px,-2px);
  box-shadow: 6px 6px 0 var(--ink);
}

.btn-outline {
  background: var(--card);
  border:2px solid var(--ink);
  color: var(--ink);
}
.btn-outline:hover{
  background: var(--lemon);
  transform: translate(-2px,-2px);
  box-shadow: 6px 6px 0 var(--ink);
}

/* ---------- 标签 / 标题 ---------- */
.section-label {
  display:inline-block; font-size:.76rem; font-weight:900;
  letter-spacing:.22em; text-transform:uppercase;
  margin-bottom:14px; color:var(--teal);
  padding-left:26px; position:relative;
}
.section-label::before{
  content:''; position:absolute; left:0; top:50%;
  transform: translateY(-50%);
  width:16px; height:16px; border-radius:5px;
  background: var(--coral); border:2px solid var(--ink);
  box-shadow:2px 2px 0 var(--ink);
}
.section-label::after{ content:''; }

.section-title {
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  margin-bottom:16px; font-weight:900; letter-spacing:-.035em;
}

.section-desc {
  max-width:620px; color:var(--ink-soft);
  margin-bottom:44px; font-size:1.02rem;
}

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

.category-card {
  border-radius: var(--r); padding:30px 26px;
  background: var(--card);
  border:2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  position:relative;
}
.category-card:hover {
  transform: translate(-3px,-3px) rotate(-.4deg);
  box-shadow: var(--shadow-md);
  background: #FFFDF8;
}
.category-card:nth-child(4n+1){ background: #FFF9EE; }
.category-card:nth-child(4n+2){ background: #F2FBF9; }
.category-card:nth-child(4n+3){ background: #FCF5FF; }

.card-icon {
  width:52px; height:52px; border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; font-size:1.35rem;
  border:2px solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  background: var(--lemon);
  transform: rotate(-4deg);
}
.category-card:nth-child(3n+1) .card-icon{ background: var(--lemon); }
.category-card:nth-child(3n+2) .card-icon{ background: var(--lilac); }
.category-card:nth-child(3n)   .card-icon{ background: #9BE3DC; }

.category-card h3{
  font-size:1.12rem; margin-bottom:10px; font-weight:900; letter-spacing:-.02em;
}
.category-card p{ font-size:.92rem; color:var(--ink-soft); margin-bottom:16px; }

.card-link {
  font-weight:900; font-size:.85rem; text-decoration:none;
  color: var(--coral-deep); letter-spacing:.02em;
  border-bottom:2px solid var(--coral);
  padding-bottom:2px;
  transition: color .16s ease, border-color .16s ease;
}
.card-link:hover{ color: var(--teal); border-color: var(--teal); }

/* ---------- 特性块 ---------- */
.feature-block {
  display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center;
}

.feature-image {
  border-radius: var(--r-lg); overflow:hidden;
  border:2px solid var(--ink);
  box-shadow: var(--shadow-lg);
  background: var(--paper-3);
  transform: rotate(-1deg);
}
.feature-image img { width:100%; height:auto; }

.feature-text h2{ font-size: clamp(1.5rem,3vw,2.1rem); margin-bottom:16px; }
.feature-text > p{ color:var(--ink-soft); margin-bottom:22px; }

.feature-list { list-style:none; display:grid; gap:12px; }
.feature-list li {
  padding:12px 16px; display:flex; align-items:center; gap:12px;
  font-size:.94rem; font-weight:600;
  background: var(--card);
  border:2px solid var(--ink);
  border-radius:10px;
  box-shadow:3px 3px 0 var(--ink);
  transition: transform .16s ease;
}
.feature-list li:hover{ transform: translateX(4px); }
.feature-list li::before {
  content:'✓'; font-weight:900; flex:0 0 auto;
  width:24px; height:24px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:.78rem; color:#fff;
  background: var(--teal);
  border:2px solid var(--ink);
}

/* ---------- 数据条 ---------- */
.stats-bar {
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px;
  text-align:center;
}
.stat-item {
  padding:28px 20px; border-radius: var(--r);
  background: var(--card);
  border:2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease;
}
.stat-item:hover{ transform: translateY(-5px); box-shadow: var(--shadow-md); }
.stat-item:nth-child(1){ background:#FFF7E4; }
.stat-item:nth-child(2){ background:#EFFAF8; }
.stat-item:nth-child(3){ background:#FBF4FF; }
.stat-item:nth-child(4){ background:#FFEFEA; }

.stat-number {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight:900; letter-spacing:-.05em;
  color: var(--ink); line-height:1.1;
}
.stat-item:nth-child(odd) .stat-number{ color: var(--coral-deep); }
.stat-item:nth-child(even) .stat-number{ color: var(--teal); }

.stat-label {
  font-size:.86rem; color:var(--ink-soft); margin-top:8px;
  font-weight:700; letter-spacing:.04em;
}

/* ---------- 内容墙 ---------- */
.content-wall {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:26px;
}
.content-wall-item {
  border-radius: var(--r); overflow:hidden;
  background: var(--card);
  border:2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease;
}
.content-wall-item:hover {
  transform: translate(-3px,-3px);
  box-shadow: var(--shadow-md);
}
.content-wall-item img {
  width:100%; height:200px; object-fit:cover;
  border-bottom:2px solid var(--ink);
  filter: saturate(1.05);
  transition: transform .5s cubic-bezier(.22,1,.36,1);
}
.content-wall-item:hover img{ transform: scale(1.05); }

.content-wall-body { padding:22px 20px; }
.content-wall-body h3{ font-size:1.04rem; margin-bottom:8px; }
.content-wall-body p{ font-size:.9rem; color:var(--ink-soft); }

/* ---------- FAQ ---------- */
.faq-list { max-width:820px; margin:0 auto; }

.faq-item {
  background: var(--card);
  border:2px solid var(--ink);
  border-radius:12px;
  margin-bottom:14px; overflow:hidden; cursor:pointer;
  box-shadow:3px 3px 0 var(--ink);
  transition: transform .16s ease, box-shadow .16s ease, background .2s ease;
}
.faq-item:hover{ transform: translate(-2px,-2px); box-shadow:5px 5px 0 var(--ink); }

.faq-item .faq-question {
  padding:18px 22px; font-weight:800; font-size:.98rem;
  display:flex; justify-content:space-between; align-items:center; gap:16px;
}
.faq-item .faq-question::after{
  content:'+'; font-weight:900; font-size:1.3rem; line-height:1;
  color: var(--coral); transition: transform .25s ease, color .25s ease;
}
.faq-item.open .faq-question::after{
  content:'–'; color: var(--teal); transform: rotate(180deg);
}

.faq-item .faq-answer {
  padding:0 22px 18px; display:none;
  color: var(--ink-soft); font-size:.94rem;
  border-top:1px dashed rgba(26,21,18,.25);
  padding-top:16px; margin:0 22px 18px; padding-left:0; padding-right:0;
}
.faq-item.open { background:#FFFBF2; }
.faq-item.open .faq-answer { display:block; }

/* ---------- CTA 横幅 ---------- */
.cta-banner {
  padding:64px 34px; text-align:center;
  border-radius: var(--r-lg); color:#fff;
  border:2px solid var(--ink);
  box-shadow: var(--shadow-lg);
  position:relative; overflow:hidden;
  background:
    radial-gradient(circle at 10% 15%, rgba(255,216,77,.85) 0 80px, transparent 82px),
    radial-gradient(circle at 90% 88%, rgba(14,143,134,.8) 0 110px, transparent 112px),
    radial-gradient(circle at 78% 8%, rgba(205,185,255,.65) 0 60px, transparent 62px),
    linear-gradient(135deg, #FF5A36, #FF7A2F 55%, #FF9558);
}
.cta-banner h2 {
  color:#fff; font-size: clamp(1.5rem,3.2vw,2.2rem);
  margin-bottom:12px; text-shadow: 2px 2px 0 rgba(26,21,18,.45);
}
.cta-banner p{
  color: rgba(255,255,255,.92); max-width:560px;
  margin:0 auto 28px; font-weight:600;
}
.cta-banner .btn-primary {
  background: var(--ink); color:#fff;
  border-color: var(--ink);
  box-shadow: 5px 5px 0 rgba(255,255,255,.95);
}
.cta-banner .btn-primary:hover{
  background: var(--lemon); color: var(--ink);
  box-shadow: 7px 7px 0 rgba(255,255,255,.95);
}

/* ---------- 页脚 ---------- */
.site-footer {
  padding:64px 0 28px;
  background: var(--paper-2);
  border-top:2px solid var(--ink);
  color: var(--ink);
}
.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:320px; }

.footer-col h4{
  font-size:.82rem; font-weight:900; letter-spacing:.16em;
  text-transform:uppercase; margin-bottom:16px; color: var(--teal);
}
.footer-col ul{ list-style:none; display:grid; gap:10px; }
.footer-col a{
  text-decoration:none; font-size:.9rem; font-weight:600;
  color: var(--ink-soft); transition: color .16s ease, padding-left .16s ease;
}
.footer-col a:hover{ color: var(--coral-deep); padding-left:6px; }

.footer-bottom {
  border-top:1px dashed rgba(26,21,18,.28);
  margin-top:44px; padding-top:22px; text-align:center;
  font-size:.84rem; color: var(--ink-soft); font-weight:600;
  letter-spacing:.02em;
}

/* ---------- 工具类 ---------- */
.text-accent {
  color: var(--coral);
  background: linear-gradient(180deg, transparent 60%, var(--lemon) 60%);
  padding:0 .08em; font-weight:900;
}
.text-center { text-align:center; }
.text-center .section-desc{ margin-left:auto; margin-right:auto; }

.seo-description {
  max-width:640px; margin:0 auto 48px;
  color: var(--ink-soft); font-size:.98rem;
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 980px){
  .footer-grid { grid-template-columns:1.4fr 1fr 1fr; gap:32px; }
}

@media (max-width: 768px) {
  .section{ padding:64px 0; }
  .feature-block { grid-template-columns:1fr; gap:34px; }
  .feature-image{ transform:none; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .hero{ padding:120px 0 64px; }
  .hero::before{ width:320px; height:320px; top:-90px; right:-110px; }

  .main-nav {
    display:none;
  }
  .menu-toggle { display:flex; }

  .main-nav.open {
    display:flex; flex-direction:column; align-items:flex-start; gap:6px;
    position:absolute; top:68px; left:0; width:100%;
    background: var(--paper);
    border-bottom:2px solid var(--ink);
    padding:22px 24px 28px;
    box-shadow: 0 12px 0 rgba(26,21,18,.12);
  }
  .main-nav.open a{
    width:100%; padding:12px 4px; font-size:1rem;
    border-bottom:1px dashed rgba(26,21,18,.2);
  }
  .main-nav.open .nav-cta{
    border-bottom:2px solid var(--ink);
    margin-top:10px; text-align:center; justify-content:center;
    width:100%;
  }
}

@media (max-width: 480px) {
  .container{ padding:0 18px; }
  .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; }
  .cta-banner{ padding:44px 20px; }
  .section-title{ font-size:1.45rem; }
}