:root{
  --bg-start:#f6f8ff;
  --bg-end:#eef2fb;
  --card:#ffffff;
  --border:rgba(40,62,100,.13);
  --text:#142033;
  --title:#0d0820;
  --accent:#6c4df6;
  --accent-2:#1fb9d6;
  --accent-soft:rgba(108,77,246,.10);
  --shadow:0 10px 30px rgba(20,32,51,.08);
  --shadow-hover:0 18px 44px rgba(108,77,246,.20);
  --link:#5a37e8;
  --link-hover:#1fb9d6;
}
html[data-theme="dark"]{
  --bg-start:#0b0b18;
  --bg-end:#15152c;
  --card:#1a1a36;
  --border:#2e2e58;
  --text:#e9e9f4;
  --title:#f2f2ff;
  --accent:#7c5cff;
  --accent-2:#9d7cff;
  --accent-soft:rgba(124,92,255,.14);
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --shadow-hover:0 18px 44px rgba(124,92,255,.35);
  --link:#9d7cff;
  --link-hover:#1fb9d6;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:linear-gradient(160deg,var(--bg-start),var(--bg-end));
  color:var(--text);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  transition:background .35s ease,color .35s ease;
}
img{display:block;max-width:100%;border-radius:10px;}
a{color:var(--link);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--link-hover);text-decoration:underline;}
h1,h2,h3{color:var(--title);line-height:1.3;}
h1{font-size:clamp(1.6rem,3.4vw,2.6rem);font-weight:800;letter-spacing:.5px;}
h2{font-size:clamp(1.35rem,2.4vw,1.9rem);font-weight:700;}
h3{font-size:1.08rem;font-weight:700;}
p{color:var(--text);}
.container{width:min(1240px,92%);margin:0 auto;}

/* ===== 阅读进度条 ===== */
#progressBar{
  position:fixed;top:0;left:0;height:3px;width:0%;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  z-index:2000;transition:width .1s linear;border-radius:0 3px 3px 0;
}

/* ===== 顶部导航 ===== */
header.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1500;
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s ease,border-color .3s ease,background .3s ease;
}
html[data-theme="dark"] header.site-header{background:rgba(11,11,24,.72);}
header.site-header.scrolled{
  box-shadow:0 6px 24px rgba(20,32,51,.14);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  display:flex;align-items:center;gap:18px;
  height:68px;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-weight:800;font-size:1.02rem;color:var(--title);
  white-space:nowrap;flex-shrink:0;
}
.logo:hover{text-decoration:none;color:var(--title);}
.logo .logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.1rem;font-weight:900;flex-shrink:0;
}
.logo-text{max-width:230px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
nav.main-nav{margin-left:auto;}
nav.main-nav ul{display:flex;list-style:none;gap:4px;align-items:center;}
nav.main-nav ul li a{
  display:block;padding:8px 11px;border-radius:8px;
  font-size:.92rem;font-weight:600;color:var(--text);
}
nav.main-nav ul li a:hover{
  background:var(--accent-soft);color:var(--accent);text-decoration:none;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;
  background:var(--card);border:1px solid var(--border);
  border-radius:10px;padding:6px 10px;gap:6px;
}
.search-box input{
  border:none;outline:none;background:transparent;color:var(--text);
  font-size:.88rem;width:130px;font-family:inherit;
}
.search-box input::placeholder{color:var(--text);opacity:.55;}
.search-box button{
  border:none;background:transparent;cursor:pointer;color:var(--accent);
  font-size:.95rem;font-weight:700;
}
.theme-btn{
  border:1px solid var(--border);background:var(--card);color:var(--text);
  width:38px;height:38px;border-radius:10px;cursor:pointer;font-size:1rem;
  display:flex;align-items:center;justify-content:center;transition:.25s;
}
.theme-btn:hover{border-color:var(--accent);color:var(--accent);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:10px 20px;border-radius:11px;font-weight:700;font-size:.92rem;
  cursor:pointer;border:none;transition:transform .22s ease,box-shadow .22s ease,background .22s ease;
  font-family:inherit;text-align:center;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;box-shadow:0 8px 20px rgba(108,77,246,.30);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(108,77,246,.42);color:#fff;text-decoration:none;}
.btn-ghost{
  background:var(--card);color:var(--accent);border:1.5px solid var(--accent);
}
.btn-ghost:hover{background:var(--accent-soft);transform:translateY(-2px);text-decoration:none;color:var(--accent);}
.hamburger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:40px;height:40px;border-radius:10px;border:1px solid var(--border);
  background:var(--card);cursor:pointer;padding:0 9px;
}
.hamburger span{display:block;height:2px;background:var(--text);border-radius:2px;transition:.3s;}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.active span:nth-child(2){opacity:0;}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 移动端菜单 */
.mobile-menu{
  display:none;flex-direction:column;gap:2px;
  padding:12px 4% 20px;background:var(--card);
  border-bottom:1px solid var(--border);
}
.mobile-menu.open{display:flex;}
.mobile-menu a{
  padding:11px 14px;border-radius:10px;font-weight:600;color:var(--text);font-size:.95rem;
}
.mobile-menu a:hover{background:var(--accent-soft);color:var(--accent);text-decoration:none;}
.mobile-menu .mobile-search{margin-top:8px;display:flex;gap:8px;}
.mobile-menu .mobile-search input{
  flex:1;padding:10px 12px;border-radius:10px;border:1px solid var(--border);
  background:var(--bg-start);color:var(--text);outline:none;font-family:inherit;
}

/* ===== Hero ===== */
.hero{
  min-height:76vh;display:flex;align-items:center;justify-content:center;
  text-align:center;padding:120px 0 70px;position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,77,246,.18),transparent 70%);
  top:-120px;left:-100px;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,185,214,.16),transparent 70%);
  bottom:-140px;right:-90px;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:20px;}
.hero-logo{
  width:200px;height:200px;border-radius:44px;object-fit:cover;
  border:3px solid var(--border);box-shadow:var(--shadow-hover);
  background:var(--card);
}
.hero h1{max-width:900px;}
.hero .slogan{
  font-size:clamp(1rem,1.8vw,1.24rem);font-weight:700;
  color:var(--accent);letter-spacing:.5px;
}
.hero .hero-desc{max-width:720px;font-size:.98rem;opacity:.92;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:6px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:46px;justify-content:center;margin-top:34px;
}
.hero-stats .stat{text-align:center;}
.hero-stats .stat b{
  display:block;font-size:1.7rem;font-weight:900;color:var(--accent);
  font-family:inherit;
}
.hero-stats .stat span{font-size:.85rem;opacity:.85;}

/* ===== 通用区块 ===== */
section{padding:64px 0;}
.section-head{text-align:center;margin-bottom:38px;}
.section-head h2{margin-bottom:10px;}
.section-head p{max-width:680px;margin:0 auto;font-size:.95rem;opacity:.9;}
.section-head .eyebrow{
  display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:2px;
  color:var(--accent);background:var(--accent-soft);padding:4px 14px;border-radius:20px;
  margin-bottom:12px;text-transform:uppercase;
}

/* ===== 热门漫画网格 ===== */
.grid-cards{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;
  overflow:hidden;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  position:relative;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:var(--accent);}
.card .cover-wrap{position:relative;overflow:hidden;}
.card .cover-wrap img{width:100%;height:auto;aspect-ratio:220/310;object-fit:cover;border-radius:0;}
.card .badge{
  position:absolute;top:10px;left:10px;font-size:.7rem;font-weight:800;
  padding:3px 10px;border-radius:20px;color:#fff;background:var(--accent);
}
.card .badge.done{background:#1fb9d6;}
.card .views{
  position:absolute;top:10px;right:10px;font-size:.7rem;font-weight:700;
  padding:3px 9px;border-radius:20px;color:#fff;background:rgba(13,8,32,.72);
}
.card-body{padding:14px 15px 16px;display:flex;flex-direction:column;gap:6px;flex:1;}
.card-body h3{font-size:1rem;}
.card-meta{font-size:.8rem;opacity:.88;display:flex;flex-direction:column;gap:2px;}
.card-meta em{font-style:normal;color:var(--accent);font-weight:700;}
.card .tag{
  align-self:flex-start;margin-top:auto;font-size:.72rem;font-weight:700;
  background:var(--accent-soft);color:var(--accent);padding:3px 10px;border-radius:8px;
}

/* ===== 精品推荐 ===== */
.feature-list{display:flex;flex-direction:column;gap:24px;}
.feature-card{
  display:grid;grid-template-columns:300px 1fr;gap:24px;
  background:var(--card);border:1px solid var(--border);border-radius:18px;
  padding:18px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--accent);}
.feature-card img{width:300px;height:200px;object-fit:cover;border-radius:12px;}
.feature-text{display:flex;flex-direction:column;gap:8px;}
.feature-text h3{font-size:1.18rem;}
.feature-text .feature-meta{font-size:.84rem;opacity:.9;}
.feature-text p{font-size:.92rem;}
.feature-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;}
.feature-tags span{
  font-size:.75rem;font-weight:700;padding:4px 12px;border-radius:8px;
  background:var(--accent-soft);color:var(--accent);
}

/* ===== 漫画详细介绍 ===== */
.detail-layout{display:grid;grid-template-columns:280px 1fr;gap:30px;align-items:start;}
.detail-aside{
  background:linear-gradient(160deg,var(--accent),var(--accent-2));
  color:#fff;border-radius:20px;padding:34px 26px;position:sticky;top:100px;
}
.detail-aside .big-num{font-size:4.6rem;font-weight:900;line-height:1;color:#fff;opacity:.96;}
.detail-aside h3{color:#fff;margin:14px 0 10px;font-size:1.15rem;}
.detail-aside p{color:#fff;opacity:.95;font-size:.9rem;}
.detail-body{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:32px;}
.detail-body h3{margin:22px 0 10px;font-size:1.12rem;padding-left:12px;border-left:4px solid var(--accent);}
.detail-body h3:first-child{margin-top:0;}
.detail-body p{margin-bottom:12px;font-size:.95rem;}
.detail-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.detail-tags span{
  padding:8px 18px;border-radius:12px;font-weight:700;font-size:.85rem;
  background:var(--accent-soft);color:var(--accent);border:1px solid var(--border);
}

/* ===== 角色介绍 ===== */
.char-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.char-card{
  display:grid;grid-template-columns:180px 1fr;gap:20px;
  background:var(--card);border:1px solid var(--border);border-radius:18px;
  padding:18px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.char-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--accent);}
.char-card img{width:180px;height:180px;object-fit:cover;border-radius:14px;}
.char-info h3{font-size:1.08rem;margin-bottom:4px;}
.char-role{
  display:inline-block;font-size:.72rem;font-weight:800;color:#fff;
  background:var(--accent);padding:2px 10px;border-radius:20px;margin-bottom:8px;
}
.char-info .ability{font-size:.83rem;font-weight:700;color:var(--accent);margin-bottom:6px;}
.char-info p{font-size:.88rem;}

/* ===== 平台介绍 ===== */
.platform-layout{display:grid;grid-template-columns:1.4fr 1fr;gap:34px;align-items:start;}
.platform-article{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:32px;}
.platform-article h3{margin:20px 0 10px;font-size:1.1rem;}
.platform-article h3:first-child{margin-top:0;}
.platform-article p{font-size:.94rem;margin-bottom:12px;}
.step-list{display:flex;flex-direction:column;gap:16px;}
.step-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px;
  transition:transform .25s ease,border-color .25s ease;
}
.step-item:hover{transform:translateX(6px);border-color:var(--accent);}
.step-item .step-num{
  width:42px;height:42px;flex-shrink:0;border-radius:12px;font-weight:900;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:1.05rem;
}
.step-item h3{font-size:.98rem;margin-bottom:4px;}
.step-item p{font-size:.86rem;opacity:.92;}
.feature-squares{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px;
}
.feature-squares .sq{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:18px;text-align:center;transition:transform .25s ease,border-color .25s ease;
}
.feature-squares .sq:hover{transform:translateY(-5px);border-color:var(--accent);}
.feature-squares .sq b{display:block;color:var(--accent);font-size:1rem;margin-bottom:4px;}
.feature-squares .sq span{font-size:.82rem;opacity:.9;}

/* ===== 多端同步 ===== */
.sync-layout{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center;}
.sync-text h3{margin:18px 0 8px;font-size:1.08rem;}
.sync-text h3:first-child{margin-top:0;}
.sync-text p{font-size:.94rem;margin-bottom:10px;}
.sync-visual{display:flex;gap:20px;justify-content:center;align-items:flex-end;}
.sync-visual img{border:1px solid var(--border);box-shadow:var(--shadow);background:var(--card);}
.sync-visual .phone{width:200px;height:400px;object-fit:cover;}
.sync-visual .tablet{width:280px;height:400px;object-fit:cover;}

/* ===== 公告 ===== */
.notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.notice-card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:22px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.notice-card:hover{transform:translateY(-6px);border-color:var(--accent);box-shadow:var(--shadow-hover);}
.notice-card time{font-size:.78rem;font-weight:700;color:var(--accent);}
.notice-card h3{font-size:1rem;margin:8px 0 8px;}
.notice-card p{font-size:.87rem;opacity:.92;}

/* ===== 阅读指南 ===== */
.guide-layout{display:grid;grid-template-columns:1.3fr 1fr;gap:34px;align-items:start;}
.guide-article{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:32px;}
.guide-article h3{margin:18px 0 8px;font-size:1.05rem;}
.guide-article h3:first-child{margin-top:0;}
.guide-article p{font-size:.93rem;margin-bottom:10px;}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-item{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;
}
.check-item .tick{
  width:26px;height:26px;flex-shrink:0;border-radius:8px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:900;
}
.check-item p{font-size:.88rem;}

/* ===== APP下载 ===== */
.app-download{
  text-align:center;background:var(--card);border:1px solid var(--border);
  border-radius:24px;padding:56px 30px;box-shadow:var(--shadow);
}
.app-download h2{margin-bottom:14px;}
.app-download p{max-width:680px;margin:0 auto 26px;font-size:.95rem;}
.app-btns{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;}

/* ===== 用户评论 ===== */
.comment-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.comment-card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.comment-card:hover{transform:translateY(-5px);border-color:var(--accent);box-shadow:var(--shadow-hover);}
.comment-head{display:flex;align-items:center;gap:12px;margin-bottom:10px;}
.comment-avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:.95rem;
}
.comment-head .cname{font-weight:700;font-size:.92rem;color:var(--title);}
.comment-head .ctime{font-size:.76rem;opacity:.8;}
.comment-card p{font-size:.9rem;}

/* ===== FAQ ===== */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item.open{border-color:var(--accent);}
.faq-q{
  width:100%;text-align:left;background:transparent;border:none;cursor:pointer;
  padding:18px 22px;font-size:.98rem;font-weight:700;color:var(--title);
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  font-family:inherit;
}
.faq-q .arrow{transition:transform .3s ease;color:var(--accent);font-weight:900;flex-shrink:0;}
.faq-item.open .faq-q .arrow{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;
  padding:0 22px;
}
.faq-item.open .faq-a{max-height:400px;padding:0 22px 20px;}
.faq-a p{font-size:.9rem;}

/* ===== 侧边栏区块 ===== */
.sidebar-section{padding-top:0;}
.side-layout{display:grid;grid-template-columns:1fr 340px;gap:34px;align-items:start;}
.side-col{display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:var(--card);border:1px solid var(--border);border-radius:18px;padding:22px;
}
.side-card h3{
  font-size:1.02rem;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border);
}
.rank-list{list-style:none;display:flex;flex-direction:column;gap:10px;}
.rank-list li{display:flex;align-items:center;gap:12px;font-size:.88rem;}
.rank-list .rk{
  width:24px;height:24px;flex-shrink:0;border-radius:7px;font-size:.75rem;font-weight:900;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--accent);
}
.rank-list li:nth-child(1) .rk{background:linear-gradient(135deg,#ffb020,#ff7a00);color:#fff;}
.rank-list li:nth-child(2) .rk{background:linear-gradient(135deg,#9aa7c7,#6e7ea3);color:#fff;}
.rank-list li:nth-child(3) .rk{background:linear-gradient(135deg,#e08a4d,#b35f22);color:#fff;}
.rank-list .rk-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.rank-list .rk-val{font-weight:700;color:var(--accent);font-size:.8rem;}
.stat-list{display:flex;flex-direction:column;gap:12px;}
.stat-row{display:flex;justify-content:space-between;font-size:.88rem;}
.stat-row b{color:var(--accent);font-weight:800;}

/* ===== 底部 ===== */
footer.site-footer{
  background:var(--card);border-top:1px solid var(--border);margin-top:40px;padding:52px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:36px;}
.footer-col h3{font-size:1rem;margin-bottom:14px;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:9px;}
.footer-col ul li a{font-size:.88rem;color:var(--text);}
.footer-col ul li a:hover{color:var(--accent);}
.friend-links{
  border-top:1px solid var(--border);padding-top:22px;margin-bottom:22px;
  font-size:.84rem;display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;
}
.friend-links b{color:var(--title);}
.friend-links a{font-size:.84rem;}
.footer-bottom{
  border-top:1px solid var(--border);padding-top:20px;text-align:center;
  font-size:.82rem;display:flex;flex-direction:column;gap:8px;align-items:center;
}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center;}
.footer-bottom .fb-links a{font-size:.82rem;}

/* ===== 返回顶部 ===== */
#backTop{
  position:fixed;right:26px;bottom:30px;width:48px;height:48px;border-radius:14px;
  border:none;cursor:pointer;z-index:1400;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;
  font-size:1.2rem;font-weight:900;box-shadow:0 10px 26px rgba(108,77,246,.40);
  opacity:0;visibility:hidden;transform:translateY(16px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s;
  display:flex;align-items:center;justify-content:center;
}
#backTop.show{opacity:1;visibility:visible;transform:translateY(0);}
#backTop:hover{transform:translateY(-4px);}

/* ===== 响应式 ===== */
@media (max-width:1080px){
  .grid-cards{grid-template-columns:repeat(3,1fr);}
  .side-layout{grid-template-columns:1fr;}
  .side-col{flex-direction:row;flex-wrap:wrap;}
  .side-card{flex:1 1 300px;}
}
@media (max-width:900px){
  nav.main-nav{display:none;}
  .search-box{display:none;}
  .hamburger{display:flex;}
  .nav-actions .btn-primary{display:none;}
  .detail-layout{grid-template-columns:1fr;}
  .detail-aside{position:static;}
  .platform-layout{grid-template-columns:1fr;}
  .guide-layout{grid-template-columns:1fr;}
  .sync-layout{grid-template-columns:1fr;}
  .char-grid{grid-template-columns:1fr;}
  .feature-squares{grid-template-columns:repeat(2,1fr);}
  .notice-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  .grid-cards{grid-template-columns:repeat(2,1fr);gap:14px;}
  .feature-card{grid-template-columns:1fr;}
  .feature-card img{width:100%;height:200px;}
  .char-card{grid-template-columns:1fr;text-align:center;justify-items:center;}
  .char-card img{width:140px;height:140px;}
  .comment-grid{grid-template-columns:1fr;}
  .notice-grid{grid-template-columns:1fr;}
  .feature-squares{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-stats{gap:26px;}
  .sync-visual{flex-direction:column;align-items:center;}
  .sync-visual .tablet{width:100%;height:260px;}
  .sync-visual .phone{width:100%;height:320px;}
  .side-col{flex-direction:column;}
  .side-card{flex:1 1 auto;}
  section{padding:48px 0;}
}