/* ================================================
   糖心vlog 原创样式表 —「光影糖果屋」
   配色：蜜桃粉 #E8478A / 星空紫 #7C4DFF / 荧光蓝 #00E5FF
   ================================================ */

/* --- CSS 变量 --- */
:root {
  --c-peach: #E8478A;
  --c-peach-dark: #C2185B;
  --c-purple: #7C4DFF;
  --c-cyan: #00E5FF;
  --c-orange: #FF9100;
  --c-bg: #0D0D1A;
  --c-bg2: #1A1A35;
  --c-card: rgba(255,255,255,0.04);
  --c-card-border: rgba(255,255,255,0.08);
  --c-white: #FFFFFF;
  --c-text: #E0E0E0;
  --c-muted: #9E9E9E;
  --grad-brand: linear-gradient(135deg, #E8478A, #7C4DFF);
  --grad-hero: linear-gradient(160deg, #0D0D1A 0%, #1A1A35 40%, #1e1040 100%);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 30px rgba(232,71,138,0.15);
  --r: 14px;
  --r-lg: 22px;
  --t: 0.35s cubic-bezier(.4,0,.2,1);
}

/* --- Reset --- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',sans-serif;background:var(--c-bg);color:var(--c-text);line-height:1.75;overflow-x:hidden}
a{color:var(--c-peach);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-cyan)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:1240px;margin:0 auto;padding:0 24px}

/* --- 顶部导航（毛玻璃） --- */
.tx-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(13,13,26,0.82);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,0.06);transition:background var(--t)}
.tx-header .header-wrap{display:flex;align-items:center;justify-content:space-between;height:68px;max-width:1240px;margin:0 auto;padding:0 24px}
.tx-header .brand{display:flex;align-items:center;gap:10px}
.tx-header .brand img{height:36px;width:auto}
.tx-header .brand span{font-size:1.2rem;font-weight:700;background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.tx-nav{display:flex;gap:6px}
.tx-nav a{padding:8px 16px;border-radius:8px;font-size:0.92rem;color:var(--c-text);transition:all var(--t);position:relative}
.tx-nav a:hover,.tx-nav a.on{color:var(--c-white);background:rgba(232,71,138,0.12)}
.tx-nav a.on::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:20px;height:3px;border-radius:2px;background:var(--grad-brand)}
.tx-search-btn{background:none;border:1px solid var(--c-card-border);border-radius:50%;width:38px;height:38px;display:flex;align-items:center;justify-content:center;color:var(--c-text);cursor:pointer;transition:all var(--t);font-size:1.1rem}
.tx-search-btn:hover{border-color:var(--c-peach);color:var(--c-peach)}
.tx-mobile-btn{display:none;background:none;border:none;color:var(--c-white);font-size:1.5rem;cursor:pointer}

/* --- Hero 区域（对角线切割） --- */
.tx-hero{padding:120px 0 80px;background:var(--grad-hero);position:relative;overflow:hidden;min-height:88vh}
.tx-hero::before{content:'';position:absolute;top:-50%;right:-20%;width:80%;height:200%;background:radial-gradient(ellipse,rgba(124,77,255,0.08) 0%,transparent 70%);pointer-events:none}
.tx-hero .hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.tx-hero .hero-text h1{font-size:2.8rem;font-weight:800;line-height:1.3;color:var(--c-white);margin-bottom:18px}
.tx-hero .hero-text h1 em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.tx-hero .hero-text .sub{font-size:1.05rem;color:var(--c-muted);margin-bottom:32px;line-height:1.8}
.tx-hero .hero-stats{display:flex;gap:32px;margin-bottom:36px}
.tx-hero .hero-stat .num{font-size:1.6rem;font-weight:800;background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.tx-hero .hero-stat .lbl{font-size:0.8rem;color:var(--c-muted)}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}

/* Hero 视频拼贴墙 */
.hero-collage{position:relative;height:480px}
.hero-collage .col-img{position:absolute;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-card);transition:transform var(--t)}
.hero-collage .col-img:hover{transform:scale(1.03)}
.hero-collage .col-img img{width:100%;height:100%;object-fit:cover}
.hero-collage .ci1{top:0;left:10%;width:55%;height:58%;transform:rotate(-3deg)}
.hero-collage .ci2{top:15%;right:0;width:45%;height:45%;transform:rotate(4deg)}
.hero-collage .ci3{bottom:0;left:5%;width:48%;height:42%;transform:rotate(2deg)}

/* --- 按钮 --- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:50px;font-size:0.95rem;font-weight:600;cursor:pointer;transition:all var(--t);border:none}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 4px 20px rgba(232,71,138,0.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(232,71,138,0.45);color:#fff}
.btn-outline{background:transparent;color:var(--c-white);border:1.5px solid rgba(255,255,255,0.25)}
.btn-outline:hover{border-color:var(--c-peach);color:var(--c-peach)}

/* --- 搜索条 --- */
.tx-search-bar{padding:20px 0;background:var(--c-bg2)}
.tx-search-bar form{display:flex;max-width:640px;margin:0 auto;background:var(--c-card);border:1px solid var(--c-card-border);border-radius:50px;overflow:hidden}
.tx-search-bar input{flex:1;padding:12px 24px;background:transparent;border:none;color:var(--c-white);font-size:0.95rem;outline:none}
.tx-search-bar input::placeholder{color:var(--c-muted)}
.tx-search-bar button{padding:12px 28px;background:var(--grad-brand);color:#fff;border:none;font-weight:600;cursor:pointer;transition:opacity var(--t)}
.tx-search-bar button:hover{opacity:0.85}

/* --- 面包屑 --- */
.tx-crumb{padding:14px 0;background:rgba(26,26,53,0.6)}
.tx-crumb ol{display:flex;align-items:center;gap:8px;font-size:0.85rem}
.tx-crumb a{color:var(--c-muted)}
.tx-crumb a:hover{color:var(--c-peach)}
.tx-crumb .sep{color:var(--c-muted);opacity:0.5}
.tx-crumb .cur{color:var(--c-text)}

/* --- 通用 Section --- */
.tx-section{padding:80px 0}
.tx-section.alt{background:var(--c-bg2)}
.sec-head{text-align:center;margin-bottom:48px}
.sec-tag{display:inline-block;padding:4px 16px;border-radius:50px;font-size:0.78rem;font-weight:600;letter-spacing:1px;text-transform:uppercase;background:rgba(232,71,138,0.12);color:var(--c-peach);margin-bottom:12px}
.sec-head h2{font-size:2rem;font-weight:800;color:var(--c-white);margin-bottom:10px}
.sec-head h2 em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.sec-head p{color:var(--c-muted);max-width:640px;margin:0 auto;font-size:0.95rem}

/* --- 视频卡片网格 --- */
.vid-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.vid-card{background:var(--c-card);border:1px solid var(--c-card-border);border-radius:var(--r);overflow:hidden;transition:all var(--t)}
.vid-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-glow);border-color:rgba(232,71,138,0.2)}
.vid-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#111}
.vid-thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.vid-card:hover .vid-thumb img{transform:scale(1.06)}
/* 播放按钮 - 默认隐藏，hover显示 */
.vid-thumb .play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0.8);width:56px;height:56px;background:rgba(232,71,138,0.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:all var(--t);z-index:3;cursor:pointer}
.vid-thumb .play::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.vid-card:hover .vid-thumb .play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.vid-thumb .dur{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:0.75rem;z-index:2}
.vid-thumb .live-tag{position:absolute;top:8px;left:8px;background:#F44336;color:#fff;padding:2px 10px;border-radius:4px;font-size:0.72rem;font-weight:600;z-index:2;display:flex;align-items:center;gap:4px}
.vid-thumb .live-tag::before{content:'';width:6px;height:6px;border-radius:50%;background:#fff;animation:blink 1s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0.3}}
.vid-body{padding:16px}
.vid-body h3{font-size:0.95rem;font-weight:600;color:var(--c-white);margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vid-meta{display:flex;gap:14px;font-size:0.78rem;color:var(--c-muted);margin-bottom:8px}
.vid-tags{display:flex;gap:6px;flex-wrap:wrap}
.vid-tags span{padding:2px 10px;border-radius:50px;font-size:0.72rem;background:rgba(124,77,255,0.12);color:var(--c-purple)}

/* 大卡片（首列） */
.vid-grid.waterfall{grid-template-columns:2fr 1fr 1fr;grid-template-rows:auto auto}
.vid-grid.waterfall .vid-card:first-child{grid-row:1/3}
.vid-grid.waterfall .vid-card:first-child .vid-thumb{padding-top:100%}

/* 标签筛选条 */
.filter-bar{display:flex;gap:8px;margin-bottom:28px;flex-wrap:wrap}
.filter-bar .tag{padding:6px 18px;border-radius:50px;font-size:0.85rem;background:var(--c-card);border:1px solid var(--c-card-border);color:var(--c-text);cursor:pointer;transition:all var(--t)}
.filter-bar .tag:hover,.filter-bar .tag.on{background:var(--grad-brand);color:#fff;border-color:transparent}

/* --- 六宫格服务卡片 --- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc-card{padding:28px 24px;background:var(--c-card);border:1px solid var(--c-card-border);border-radius:var(--r);position:relative;overflow:hidden;transition:all var(--t)}
.svc-card::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:var(--grad-brand);opacity:0;transition:opacity var(--t)}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-glow);border-color:rgba(232,71,138,0.15)}
.svc-card:hover::before{opacity:1}
.svc-card .ico{font-size:2rem;margin-bottom:14px}
.svc-card h3{font-size:1.05rem;font-weight:700;color:var(--c-white);margin-bottom:8px}
.svc-card p{font-size:0.88rem;color:var(--c-muted);line-height:1.7}

/* --- 横向滚动卡片（娱乐专区） --- */
.scroll-row{display:flex;gap:20px;overflow-x:auto;padding-bottom:16px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.scroll-row::-webkit-scrollbar{height:6px}
.scroll-row::-webkit-scrollbar-track{background:transparent}
.scroll-row::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.1);border-radius:3px}
.scroll-card{flex:0 0 320px;scroll-snap-align:start;border-radius:var(--r-lg);overflow:hidden;position:relative;height:220px;cursor:pointer}
.scroll-card img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.scroll-card:hover img{transform:scale(1.08)}
.scroll-card .overlay{position:absolute;inset:0;background:linear-gradient(transparent 40%,rgba(13,13,26,0.85));display:flex;flex-direction:column;justify-content:flex-end;padding:20px}
.scroll-card .overlay h3{font-size:1.1rem;font-weight:700;color:var(--c-white)}
.scroll-card .overlay p{font-size:0.82rem;color:var(--c-muted);margin-top:4px}

/* --- 左右交替图文（AI赋能） --- */
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:56px}
.alt-row:last-child{margin-bottom:0}
.alt-row.reverse .alt-img{order:2}
.alt-row.reverse .alt-text{order:1}
.alt-img{border-radius:var(--r-lg);overflow:hidden;position:relative}
.alt-img::after{content:'';position:absolute;inset:-3px;border-radius:var(--r-lg);background:var(--grad-brand);z-index:-1;opacity:0.3}
.alt-img img{border-radius:var(--r-lg);width:100%}
.alt-text h3{font-size:1.4rem;font-weight:700;color:var(--c-white);margin-bottom:14px}
.alt-text p{color:var(--c-muted);margin-bottom:18px;line-height:1.8}
.alt-text ul{display:flex;flex-direction:column;gap:10px}
.alt-text ul li{padding-left:24px;position:relative;color:var(--c-text);font-size:0.92rem}
.alt-text ul li::before{content:'';position:absolute;left:0;top:8px;width:10px;height:10px;border-radius:50%;background:var(--grad-brand)}

/* --- 六边形社区功能 --- */
.hex-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.hex-card{background:var(--c-card);border:1px solid var(--c-card-border);border-radius:var(--r);padding:32px 24px;text-align:center;transition:all var(--t);position:relative;overflow:hidden}
.hex-card::after{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(232,71,138,0.06) 0%,transparent 60%);opacity:0;transition:opacity var(--t)}
.hex-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-glow);border-color:rgba(232,71,138,0.15)}
.hex-card:hover::after{opacity:1}
.hex-card .ico{font-size:2.2rem;margin-bottom:14px;position:relative;z-index:1}
.hex-card h3{font-size:1rem;font-weight:700;color:var(--c-white);margin-bottom:8px;position:relative;z-index:1}
.hex-card p{font-size:0.85rem;color:var(--c-muted);position:relative;z-index:1}

/* --- 专家团队 --- */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.team-card{background:var(--c-card);border:1px solid var(--c-card-border);border-radius:var(--r);overflow:hidden;text-align:center;transition:all var(--t)}
.team-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-glow)}
.team-card .avatar{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:28px auto 16px;border:3px solid rgba(232,71,138,0.3)}
.team-card h4{font-size:1rem;font-weight:700;color:var(--c-white)}
.team-card .role{font-size:0.82rem;color:var(--c-peach);margin:4px 0 10px}
.team-card .bio{font-size:0.82rem;color:var(--c-muted);padding:0 20px 24px;line-height:1.6}
.team-card::after{content:'';display:block;height:3px;background:var(--grad-brand)}

/* --- 用户评价 --- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:var(--c-card);border:1px solid var(--c-card-border);border-radius:var(--r);padding:28px;position:relative}
.review-card::before{content:'\201C';position:absolute;top:12px;left:20px;font-size:3.5rem;color:rgba(232,71,138,0.15);font-family:Georgia,serif;line-height:1}
.review-card .stars{color:#FFD54F;font-size:0.9rem;margin-bottom:12px}
.review-card .txt{font-size:0.9rem;color:var(--c-text);line-height:1.7;margin-bottom:16px}
.review-card .user{display:flex;align-items:center;gap:12px}
.review-card .user .ini{width:40px;height:40px;border-radius:50%;background:var(--grad-brand);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:0.9rem}
.review-card .user .name{font-size:0.88rem;font-weight:600;color:var(--c-white)}
.review-card .user .date{font-size:0.75rem;color:var(--c-muted)}

/* --- FAQ 手风琴 --- */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-card-border)}
.faq-q{padding:20px 0;font-size:1rem;font-weight:600;color:var(--c-white);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:color var(--t)}
.faq-q:hover{color:var(--c-peach)}
.faq-q .arrow{transition:transform var(--t);font-size:0.8rem}
.faq-q.open .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.4s ease;font-size:0.9rem;color:var(--c-muted);line-height:1.8}
.faq-a.open{max-height:300px;padding-bottom:20px}

/* --- 页脚 --- */
.tx-footer{background:var(--c-bg2);border-top:1px solid var(--c-card-border);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand img{height:36px;margin-bottom:14px}
.footer-brand p{font-size:0.88rem;color:var(--c-muted);line-height:1.7}
.tx-footer h4{font-size:0.95rem;font-weight:700;color:var(--c-white);margin-bottom:16px}
.tx-footer ul li{margin-bottom:10px}
.tx-footer ul a{font-size:0.88rem;color:var(--c-muted);transition:color var(--t)}
.tx-footer ul a:hover{color:var(--c-peach)}
.footer-bottom{border-top:1px solid var(--c-card-border);padding:20px 0;text-align:center;font-size:0.82rem;color:var(--c-muted)}
.footer-bottom a{color:var(--c-peach)}

/* --- 页面 Banner（内页） --- */
.pg-banner{padding:110px 0 50px;background:var(--grad-hero);text-align:center}
.pg-banner h1{font-size:2.2rem;font-weight:800;color:var(--c-white);margin-bottom:12px}
.pg-banner h1 em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.pg-banner p{color:var(--c-muted);max-width:600px;margin:0 auto;font-size:0.95rem}

/* --- 工具卡片 --- */
.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tool-card{background:var(--c-card);border:1px solid var(--c-card-border);border-radius:var(--r);padding:28px 24px;transition:all var(--t);position:relative;overflow:hidden}
.tool-card::before{content:'';position:absolute;inset:0;background:var(--grad-brand);opacity:0;transition:opacity var(--t);z-index:0}
.tool-card:hover{transform:translateY(-4px);border-color:rgba(232,71,138,0.2)}
.tool-card:hover::before{opacity:0.05}
.tool-card>*{position:relative;z-index:1}
.tool-card .ico{font-size:2rem;margin-bottom:12px}
.tool-card h3{font-size:1.05rem;font-weight:700;color:var(--c-white);margin-bottom:8px}
.tool-card p{font-size:0.85rem;color:var(--c-muted);line-height:1.7}
.tool-card .badge{display:inline-block;margin-top:12px;padding:3px 12px;border-radius:50px;font-size:0.72rem;font-weight:600;background:rgba(0,229,255,0.12);color:var(--c-cyan)}

/* --- 创作者卡片 --- */
.creator-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.creator-card{background:var(--c-card);border:1px solid var(--c-card-border);border-radius:var(--r);overflow:hidden;text-align:center;transition:all var(--t)}
.creator-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-glow)}
.creator-card .cover{height:80px;background:var(--grad-brand)}
.creator-card .avatar{width:72px;height:72px;border-radius:50%;object-fit:cover;margin:-36px auto 12px;border:3px solid var(--c-bg);position:relative;z-index:1}
.creator-card h4{font-size:0.95rem;font-weight:700;color:var(--c-white)}
.creator-card .role{font-size:0.78rem;color:var(--c-peach);margin:4px 0 10px}
.creator-card .stats{display:flex;justify-content:center;gap:16px;padding-bottom:20px;font-size:0.78rem;color:var(--c-muted)}
.creator-stats{display:flex;justify-content:center;gap:16px;padding:10px 0 20px;font-size:0.78rem;color:var(--c-muted)}

/* --- 社区大卡片 --- */
.comm-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.comm-card{background:var(--c-card);border:1px solid var(--c-card-border);border-radius:var(--r);overflow:hidden;transition:all var(--t)}
.comm-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-glow)}
.comm-card .img{height:200px;overflow:hidden}
.comm-card .img img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.comm-card:hover .img img{transform:scale(1.05)}
.comm-card .body{padding:20px}
.comm-card .body h3{font-size:1.1rem;font-weight:700;color:var(--c-white);margin-bottom:8px}
.comm-card .body p{font-size:0.88rem;color:var(--c-muted);line-height:1.7}

/* --- 数据统计条 --- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;padding:40px 0}
.stat-item .num{font-size:1.8rem;font-weight:800;background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.stat-item .lbl{font-size:0.82rem;color:var(--c-muted);margin-top:4px}

/* --- 图文特征区 --- */
.feat-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feat-img{border-radius:var(--r-lg);overflow:hidden}
.feat-img img{width:100%;border-radius:var(--r-lg)}
.feat-text h3{font-size:1.4rem;font-weight:700;color:var(--c-white);margin-bottom:14px}
.feat-text p{color:var(--c-muted);margin-bottom:18px;line-height:1.8}
.feat-text ul{display:flex;flex-direction:column;gap:10px}
.feat-text ul li{padding-left:24px;position:relative;color:var(--c-text);font-size:0.92rem}
.feat-text ul li::before{content:'';position:absolute;left:0;top:8px;width:10px;height:10px;border-radius:50%;background:var(--grad-brand)}

/* --- 动画 --- */
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
.anim{opacity:0;transform:translateY(28px);transition:all 0.6s ease}
.anim.show{opacity:1;transform:translateY(0)}

/* --- 响应式 --- */
@media(max-width:1024px){
  .tx-hero .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-collage{height:320px;margin-top:32px}
  .vid-grid,.vid-grid.waterfall{grid-template-columns:repeat(2,1fr)}
  .vid-grid.waterfall .vid-card:first-child{grid-row:auto}
  .vid-grid.waterfall .vid-card:first-child .vid-thumb{padding-top:56.25%}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .alt-row{grid-template-columns:1fr;gap:28px}
  .alt-row.reverse .alt-img{order:0}
  .alt-row.reverse .alt-text{order:0}
  .hex-grid{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .tool-grid{grid-template-columns:repeat(2,1fr)}
  .creator-grid{grid-template-columns:repeat(2,1fr)}
  .comm-grid{grid-template-columns:1fr}
  .feat-row{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .tx-nav{display:none;position:fixed;top:68px;left:0;width:100%;background:rgba(13,13,26,0.96);flex-direction:column;padding:20px;gap:4px;backdrop-filter:blur(18px)}
  .tx-nav.open{display:flex}
  .tx-mobile-btn{display:block}
  .tx-search-btn{display:none}
  .tx-hero .hero-text h1{font-size:1.8rem}
  .tx-hero .hero-stats{flex-wrap:wrap;gap:16px;justify-content:center}
  .hero-btns{justify-content:center}
  .hero-collage{height:240px}
  .vid-grid,.vid-grid.waterfall{grid-template-columns:1fr}
  .svc-grid{grid-template-columns:1fr}
  .hex-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .tool-grid{grid-template-columns:1fr}
  .creator-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr 1fr}
  .scroll-card{flex:0 0 260px}
  .sec-head h2{font-size:1.5rem}
  .pg-banner h1{font-size:1.6rem}
}

/* --- 工具类 --- */
.mt-20{margin-top:20px}
.mb-30{margin-bottom:30px}
.text-center{text-align:center}

/* --- 懒加载占位 --- */
img[data-src]{background:linear-gradient(135deg,rgba(232,71,138,0.05),rgba(124,77,255,0.05));min-height:60px}