/* ============================================
   糖心vlog 全新原创样式 - 星空紫蓝主题
   域名: 155619.cn
   配色: 深空蓝 #0A0E27 / 电光紫 #8B5CF6 / 青蓝 #06B6D4 / 玫瑰粉 #F472B6
   ============================================ */

/* === 基础重置 === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:#0A0E27;color:#E2E8F0;line-height:1.7;overflow-x:hidden}
a{color:#A78BFA;text-decoration:none;transition:color .3s}
a:hover{color:#06B6D4}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{color:#F8FAFC;font-weight:700;line-height:1.3}

/* === 容器 === */
.tx-container{max-width:1280px;margin:0 auto;padding:0 20px}

/* === 顶部导航 === */
.tx-topbar{background:linear-gradient(135deg,#0F1035 0%,#1A1150 100%);border-bottom:1px solid rgba(139,92,246,.2);position:sticky;top:0;z-index:1000;backdrop-filter:blur(12px)}
.tx-topbar .tx-container{display:flex;align-items:center;justify-content:space-between;height:68px}
.tx-logo{display:flex;align-items:center;gap:10px}
.tx-logo img{height:42px;width:auto}
.tx-logo span{font-size:1.3rem;font-weight:800;background:linear-gradient(135deg,#8B5CF6,#06B6D4);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.tx-nav{display:flex;gap:6px;align-items:center}
.tx-nav a{padding:8px 14px;border-radius:8px;font-size:.9rem;color:#CBD5E1;transition:all .3s}
.tx-nav a:hover,.tx-nav a.current{background:rgba(139,92,246,.15);color:#A78BFA}
.tx-hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.tx-hamburger span{width:24px;height:2px;background:#E2E8F0;border-radius:2px;transition:.3s}

/* === 搜索栏 === */
.tx-search-bar{background:rgba(15,16,53,.8);padding:14px 0;border-bottom:1px solid rgba(139,92,246,.1)}
.tx-search-wrap{max-width:640px;margin:0 auto;position:relative}
.tx-search-wrap input{width:100%;padding:12px 50px 12px 20px;border-radius:30px;border:2px solid rgba(139,92,246,.3);background:rgba(30,27,75,.6);color:#F8FAFC;font-size:.95rem;outline:none;transition:border-color .3s}
.tx-search-wrap input:focus{border-color:#8B5CF6;box-shadow:0 0 20px rgba(139,92,246,.2)}
.tx-search-wrap input::placeholder{color:#64748B}
.tx-search-btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,#8B5CF6,#06B6D4);border:none;color:#fff;width:38px;height:38px;border-radius:50%;cursor:pointer;font-size:1.1rem;display:flex;align-items:center;justify-content:center}

/* === Hero区域 === */
.tx-hero{position:relative;padding:80px 0 60px;overflow:hidden;text-align:center}
.tx-hero::before{content:'';position:absolute;inset:0;background:url('../images/hero-banner.jpg') center/cover no-repeat;opacity:.25;z-index:0}
.tx-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,39,.3) 0%,#0A0E27 100%);z-index:1}
.tx-hero .tx-container{position:relative;z-index:2}
.tx-hero h1{font-size:2.8rem;margin-bottom:16px;background:linear-gradient(135deg,#8B5CF6 0%,#06B6D4 50%,#F472B6 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.tx-hero .tx-subtitle{font-size:1.15rem;color:#94A3B8;max-width:700px;margin:0 auto 30px}
.tx-hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:20px}
.tx-hero-tags span{padding:6px 16px;border-radius:20px;font-size:.82rem;background:rgba(139,92,246,.12);color:#A78BFA;border:1px solid rgba(139,92,246,.2)}

/* === 板块标题 === */
.tx-section{padding:50px 0}
.tx-section-head{text-align:center;margin-bottom:40px}
.tx-section-head h2{font-size:1.8rem;margin-bottom:10px;position:relative;display:inline-block}
.tx-section-head h2::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(90deg,#8B5CF6,#06B6D4);margin:10px auto 0;border-radius:3px}
.tx-section-head p{color:#94A3B8;font-size:.95rem;max-width:600px;margin:0 auto}

/* === 视频卡片网格 === */
.tx-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tx-grid-3{grid-template-columns:repeat(3,1fr)}
.tx-grid-2{grid-template-columns:repeat(2,1fr)}

.tx-vcard{background:linear-gradient(145deg,#111340,#0D0F2E);border-radius:14px;overflow:hidden;border:1px solid rgba(139,92,246,.1);transition:all .4s cubic-bezier(.25,.8,.25,1);position:relative}
.tx-vcard:hover{transform:translateY(-6px);border-color:rgba(139,92,246,.35);box-shadow:0 20px 40px rgba(139,92,246,.12)}
.tx-vcard-thumb{position:relative;overflow:hidden;aspect-ratio:4/3}
.tx-vcard-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tx-vcard:hover .tx-vcard-thumb img{transform:scale(1.08)}
.tx-vcard-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(10,14,39,.5);opacity:0;transition:opacity .3s}
.tx-vcard:hover .tx-vcard-play{opacity:1}
.tx-vcard-play i{width:56px;height:56px;background:rgba(139,92,246,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:0;backdrop-filter:blur(4px)}
.tx-vcard-play i::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.tx-vcard-label{position:absolute;top:10px;left:10px;padding:3px 10px;border-radius:4px;font-size:.72rem;font-weight:600;color:#fff;z-index:3}
.tx-vcard-label.video{background:linear-gradient(135deg,#8B5CF6,#7C3AED)}
.tx-vcard-label.hot{background:linear-gradient(135deg,#F472B6,#EC4899)}
.tx-vcard-label.new{background:linear-gradient(135deg,#06B6D4,#0891B2)}
.tx-vcard-dur{position:absolute;bottom:8px;right:8px;padding:2px 8px;border-radius:4px;font-size:.72rem;background:rgba(0,0,0,.7);color:#fff;z-index:3}
.tx-vcard-info{padding:14px 16px}
.tx-vcard-info h3{font-size:.92rem;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}
.tx-vcard-meta{display:flex;gap:14px;font-size:.78rem;color:#64748B}
.tx-vcard-meta span{display:flex;align-items:center;gap:4px}

/* === 专家卡片 === */
.tx-expert{background:linear-gradient(145deg,#111340,#0D0F2E);border-radius:14px;padding:28px;text-align:center;border:1px solid rgba(139,92,246,.1);transition:all .4s}
.tx-expert:hover{border-color:rgba(6,182,212,.3);box-shadow:0 12px 30px rgba(6,182,212,.1)}
.tx-expert img{width:90px;height:90px;border-radius:50%;object-fit:cover;margin:0 auto 14px;border:3px solid rgba(139,92,246,.3)}
.tx-expert h4{font-size:1rem;margin-bottom:4px}
.tx-expert .tx-role{color:#8B5CF6;font-size:.82rem;margin-bottom:10px}
.tx-expert p{font-size:.82rem;color:#94A3B8;margin-bottom:14px}
.tx-expert-links{display:flex;justify-content:center;gap:8px}
.tx-expert-links a{padding:6px 14px;border-radius:6px;font-size:.78rem;border:1px solid rgba(139,92,246,.3);color:#A78BFA;transition:all .3s}
.tx-expert-links a:hover{background:rgba(139,92,246,.15)}

/* === FAQ手风琴 === */
.tx-faq-item{background:linear-gradient(145deg,#111340,#0D0F2E);border:1px solid rgba(139,92,246,.1);border-radius:10px;margin-bottom:12px;overflow:hidden}
.tx-faq-q{padding:18px 50px 18px 20px;cursor:pointer;font-weight:600;font-size:.95rem;position:relative;color:#E2E8F0;transition:color .3s}
.tx-faq-q::after{content:'+';position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:#8B5CF6;transition:transform .3s}
.tx-faq-item.open .tx-faq-q::after{content:'-';transform:translateY(-50%) rotate(180deg)}
.tx-faq-item.open .tx-faq-q{color:#A78BFA}
.tx-faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 20px}
.tx-faq-item.open .tx-faq-a{max-height:300px;padding:0 20px 18px}
.tx-faq-a p{font-size:.88rem;color:#94A3B8;line-height:1.7}

/* === 用户评论 === */
.tx-review{background:linear-gradient(145deg,#111340,#0D0F2E);border-radius:14px;padding:24px;border:1px solid rgba(139,92,246,.1)}
.tx-review-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.tx-review-top img{width:44px;height:44px;border-radius:50%;object-fit:cover}
.tx-review-name{font-weight:600;font-size:.9rem}
.tx-review-date{font-size:.75rem;color:#64748B}
.tx-review-stars{color:#FBBF24;font-size:.85rem;margin-bottom:8px;letter-spacing:2px}
.tx-review p{font-size:.88rem;color:#CBD5E1;line-height:1.7}

/* === 合作品牌 === */
.tx-partners{display:flex;justify-content:center;padding:20px 0}
.tx-partners img{max-height:180px;border-radius:12px;opacity:.8;transition:opacity .3s}
.tx-partners img:hover{opacity:1}

/* === 社区指南 === */
.tx-guide-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.tx-guide-step{background:linear-gradient(145deg,#111340,#0D0F2E);border-radius:14px;padding:28px 20px;text-align:center;border:1px solid rgba(139,92,246,.1);position:relative;counter-increment:step}
.tx-guide-step::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#8B5CF6,#06B6D4);color:#fff;font-weight:700;font-size:1.1rem;margin:0 auto 14px}
.tx-guide-step h4{font-size:.95rem;margin-bottom:8px}
.tx-guide-step p{font-size:.82rem;color:#94A3B8}

/* === 联系我们 === */
.tx-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
.tx-contact-info{background:linear-gradient(145deg,#111340,#0D0F2E);border-radius:14px;padding:30px;border:1px solid rgba(139,92,246,.1)}
.tx-contact-info h3{font-size:1.2rem;margin-bottom:16px;color:#A78BFA}
.tx-contact-row{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;font-size:.9rem;color:#CBD5E1}
.tx-contact-row strong{color:#F8FAFC;min-width:80px}
.tx-contact-qrcodes{display:flex;gap:20px;justify-content:center;margin-top:20px}
.tx-contact-qrcodes figure{text-align:center}
.tx-contact-qrcodes img{width:130px;height:130px;border-radius:10px;border:2px solid rgba(139,92,246,.2)}
.tx-contact-qrcodes figcaption{font-size:.8rem;color:#94A3B8;margin-top:8px}

/* === 社交分享 === */
.tx-share{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.tx-share a{padding:8px 18px;border-radius:8px;font-size:.85rem;color:#fff;transition:all .3s;display:flex;align-items:center;gap:6px}
.tx-share a:hover{transform:translateY(-2px)}
.tx-share .wechat{background:#07C160}
.tx-share .weibo{background:#E6162D}
.tx-share .douyin{background:#161823}
.tx-share .bilibili{background:#00A1D6}

/* === 页脚 === */
.tx-footer{background:linear-gradient(180deg,#0A0E27 0%,#060820 100%);border-top:1px solid rgba(139,92,246,.1);padding:40px 0 20px}
.tx-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.tx-footer h4{font-size:1rem;margin-bottom:14px;color:#A78BFA}
.tx-footer p,.tx-footer a{font-size:.85rem;color:#64748B}
.tx-footer a:hover{color:#06B6D4}
.tx-footer-links{display:flex;flex-direction:column;gap:8px}
.tx-footer-bottom{border-top:1px solid rgba(139,92,246,.08);padding-top:20px;text-align:center;font-size:.8rem;color:#475569}
.tx-footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.tx-footer-logo img{height:32px}
.tx-footer-logo span{font-weight:700;background:linear-gradient(135deg,#8B5CF6,#06B6D4);-webkit-background-clip:text;-webkit-text-fill-color:transparent}

/* === 面包屑 === */
.tx-breadcrumb{padding:12px 0;font-size:.82rem;color:#64748B}
.tx-breadcrumb a{color:#8B5CF6}
.tx-breadcrumb span{margin:0 6px}

/* === 按钮 === */
.tx-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 24px;border-radius:8px;font-size:.9rem;font-weight:600;transition:all .3s;cursor:pointer;border:none}
.tx-btn-primary{background:linear-gradient(135deg,#8B5CF6,#7C3AED);color:#fff}
.tx-btn-primary:hover{box-shadow:0 8px 20px rgba(139,92,246,.3);transform:translateY(-2px)}
.tx-btn-outline{border:1px solid rgba(139,92,246,.3);color:#A78BFA;background:transparent}
.tx-btn-outline:hover{background:rgba(139,92,246,.1)}

/* === 视频弹窗 === */
.tx-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:9999;display:none;align-items:center;justify-content:center;backdrop-filter:blur(6px)}
.tx-modal-overlay.active{display:flex}
.tx-modal{background:#111340;border-radius:16px;width:90%;max-width:800px;overflow:hidden;border:1px solid rgba(139,92,246,.2)}
.tx-modal-head{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid rgba(139,92,246,.1)}
.tx-modal-head h3{font-size:1rem}
.tx-modal-close{width:32px;height:32px;border-radius:50%;background:rgba(139,92,246,.15);border:none;color:#E2E8F0;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center}
.tx-modal-body{aspect-ratio:16/9;background:#000;display:flex;align-items:center;justify-content:center;color:#64748B;font-size:.9rem}
.tx-modal-bar{display:flex;align-items:center;gap:12px;padding:10px 20px;background:rgba(15,16,53,.8)}
.tx-modal-bar .progress{flex:1;height:4px;background:rgba(139,92,246,.2);border-radius:4px;overflow:hidden}
.tx-modal-bar .progress-fill{height:100%;width:35%;background:linear-gradient(90deg,#8B5CF6,#06B6D4);border-radius:4px}
.tx-modal-bar span{font-size:.75rem;color:#94A3B8}

/* === 滚动动画 === */
.tx-fade-up{opacity:0;transform:translateY(30px);transition:all .6s ease}
.tx-fade-up.visible{opacity:1;transform:translateY(0)}

/* === 干扰标签样式（SEO用） === */
.seo-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* === 响应式 === */
@media(max-width:1024px){
  .tx-grid{grid-template-columns:repeat(3,1fr)}
  .tx-footer-grid{grid-template-columns:1fr 1fr}
  .tx-guide-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .tx-grid{grid-template-columns:repeat(2,1fr)}
  .tx-grid-3{grid-template-columns:repeat(2,1fr)}
  .tx-contact-grid{grid-template-columns:1fr}
  .tx-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#0F1035;flex-direction:column;padding:16px;border-bottom:1px solid rgba(139,92,246,.2)}
  .tx-nav.open{display:flex}
  .tx-hamburger{display:flex}
  .tx-hero h1{font-size:1.8rem}
  .tx-footer-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .tx-grid{grid-template-columns:1fr}
  .tx-grid-2{grid-template-columns:1fr}
  .tx-guide-steps{grid-template-columns:1fr}
}