/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --primary:#4A90D9;
  --primary-hover:#3B7FBD;
  --primary-light:rgba(74,144,217,.10);
  --deep-blue:#25496D;
  --deep-dark:#1F3A5F;
  --gold:#D4AF37;
  --gold-hover:#C9A227;
  --gold-light:rgba(212,175,55,.12);
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --border:#E5EAF0;
  --text-main:#1F2937;
  --text-sec:#4B5563;
  --text-muted:#9CA3AF;
  --radius-lg:16px;
  --radius-btn:12px;
  --radius-nav:20px;
  --radius-badge:999px;
  --radius-input:10px;
  --shadow-card:0 12px 32px rgba(59,125,214,.10);
  --shadow-hover:0 18px 40px rgba(59,125,214,.18);
  --shadow-nav:0 8px 28px rgba(31,63,95,.12);
  --gap-section:96px;
  --gap-section-m:56px;
  --transition:.25s ease;
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text-main);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--primary);text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text-main)}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--gap-section) 0}
.section-head{margin-bottom:44px;display:flex;flex-direction:column;align-items:flex-start}
.section-head h2{
  font-size:32px;font-weight:700;color:var(--deep-dark);
  position:relative;padding-left:18px;line-height:1.3;
}
.section-head h2::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:26px;background:var(--gold);border-radius:3px;
}
.section-head p{margin-top:12px;font-size:16px;color:var(--text-sec)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  transition:all var(--transition);white-space:nowrap;cursor:pointer;
}
.btn i{font-size:14px}
.btn-primary{background:var(--primary);color:#fff;border:1px solid transparent}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(59,125,214,.25)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.btn-outline{background:transparent;color:var(--deep-blue);border:1px solid var(--gold);}
.btn-outline:hover{background:var(--gold-light);border-color:var(--gold-hover);color:var(--deep-dark);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(1px)}
.btn-outline:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.btn-lg{padding:16px 36px;font-size:16px}
.btn-small{padding:8px 18px;font-size:13px;border-radius:10px}

/* ============ 徽章 ============ */
.badge{
  display:inline-block;padding:4px 14px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;line-height:1.5;
}
.badge-hot{background:rgba(220,80,80,.12);color:#C43B3B}
.badge-high{background:var(--gold-light);color:#8A6D1D}
.badge-new{background:rgba(74,144,217,.12);color:var(--primary-hover)}

/* ============ 浮动Dock导航 ============ */
.site-nav{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  z-index:1000;width:calc(100% - 32px);max-width:1080px;
}
.nav-dock{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:64px;padding:0 20px 0 16px;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-radius:var(--radius-nav);
  box-shadow:var(--shadow-nav);
  border:1px solid rgba(255,255,255,.4);
  transition:background .3s ease,box-shadow .3s ease;
}
.nav-dock.scrolled{
  background:rgba(255,255,255,.92);
  box-shadow:0 10px 34px rgba(31,63,95,.18);
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{
  width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold),#B8943A);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;box-shadow:0 4px 12px rgba(212,175,55,.35);
}
.logo-text{
  font-size:18px;font-weight:800;color:var(--deep-dark);letter-spacing:.5px;
}
.logo-divider{color:var(--gold);margin:0 4px;font-weight:400}
.logo-sub{font-size:14px;font-weight:500;color:var(--text-sec)}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{
  padding:9px 16px;border-radius:12px;
  font-size:14px;font-weight:500;color:var(--text-sec);
  transition:all var(--transition);
}
.nav-link:hover{background:var(--primary-light);color:var(--deep-dark)}
.nav-link.active{
  background:var(--gold-light);color:var(--deep-dark);
  font-weight:700;box-shadow:inset 0 0 0 1px rgba(212,175,55,.25);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:180px;height:38px;padding:0 14px;
  background:var(--bg);border:1px solid var(--border);
  border-radius:12px;transition:border-color var(--transition);
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(74,144,217,.15)}
.search-box i{color:var(--text-muted);font-size:13px}
.search-box input{
  width:100%;border:none;outline:none;background:transparent;
  font-size:13px;color:var(--text-main);
}
.search-box input::placeholder{color:var(--text-muted)}

/* 首页预留安全距离 */
.hero{margin-top:0;padding-top:120px}

/* ============ Hero 首屏 ============ */
.hero{
  position:relative;min-height:680px;display:flex;flex-direction:column;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  z-index:0;
}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(155deg,rgba(31,58,95,.88) 0%,rgba(37,73,109,.74) 45%,rgba(74,144,217,.55) 100%);
}
.hero-content{
  position:relative;z-index:2;
  display:flex;flex-direction:column;align-items:center;text-align:center;
  padding-top:60px;padding-bottom:40px;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.16);backdrop-filter:blur(4px);
  border:1px solid rgba(255,255,255,.25);
  padding:7px 20px;border-radius:var(--radius-badge);
  color:#fff;font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-badge .pulse-dot{
  width:7px;height:7px;border-radius:50%;background:var(--gold);
  animation:pulse 1.8s infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.45;transform:scale(.72)}
}
.hero h1{
  font-size:52px;font-weight:800;color:#fff;letter-spacing:2px;
  line-height:1.2;margin-bottom:14px;text-shadow:0 4px 20px rgba(0,0,0,.2);
}
.hero-sub{
  font-size:18px;color:rgba(255,255,255,.92);margin-bottom:18px;letter-spacing:.5px;
}
.hero-intro{
  max-width:640px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);
  margin-bottom:36px;
}
.hero-panel{
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-radius:20px;box-shadow:0 24px 60px rgba(15,35,65,.28);
  display:flex;align-items:center;gap:40px;
  padding:28px 36px;margin-bottom:32px;max-width:780px;width:100%;
  border:1px solid rgba(255,255,255,.6);
}
.hero-ring-wrap{
  flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:8px;
}
.progress-ring{position:relative;width:130px;height:130px}
.ring-svg{width:130px;height:130px;transform:rotate(-90deg)}
.ring-track{fill:none;stroke:rgba(74,144,217,.14);stroke-width:10}
.ring-progress{
  fill:none;stroke:var(--gold);stroke-width:10;stroke-linecap:round;
  stroke-dasharray:326.73;stroke-dashoffset:45.74;
  filter:drop-shadow(0 2px 6px rgba(212,175,55,.3));
}
.ring-center{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;
}
.ring-value{font-size:34px;font-weight:900;color:var(--deep-dark);line-height:1.1;font-family:"Archivo",system-ui,sans-serif}
.ring-label{font-size:12px;color:var(--text-muted)}
.hero-ring-wrap p{font-size:13px;color:var(--text-sec)}
.hd-divider{width:1px;height:90px;background:var(--border);flex-shrink:0}
.tier-preview{display:grid;grid-template-columns:1fr;gap:10px;flex:1}
.tier-row{
  display:flex;align-items:center;gap:13px;
  padding:9px 14px;border-radius:12px;background:var(--bg);
  border:1px solid var(--border);transition:all var(--transition);
}
.tier-row:hover{border-color:var(--gold);background:#fff;box-shadow:0 4px 14px rgba(59,125,214,.08)}
.tier-dot{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;color:#fff;flex-shrink:0}
.tier-dot.gold{background:linear-gradient(135deg,var(--gold),#B8943A)}
.tier-dot.blue{background:var(--primary)}
.tier-dot.dark{background:var(--deep-blue)}
.tier-row strong{display:block;font-size:14px;color:var(--text-main)}
.tier-row small{font-size:12px;color:var(--text-muted)}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;margin-bottom:50px}
.hero-ctas .btn-primary{box-shadow:0 8px 24px rgba(74,144,217,.35)}
.hero-ctas .btn-outline{border-color:rgba(255,255,255,.8);color:#fff}
.hero-ctas .btn-outline:hover{background:rgba(255,255,255,.15);border-color:#fff}
.hero-quicknav{
  position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:auto;padding-top:20px;padding-bottom:30px;
}
.quick-item{
  display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.15);backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.2);
  border-radius:14px;padding:14px 22px;color:#fff;transition:all var(--transition);
}
.quick-item:hover{background:rgba(255,255,255,.26);color:#fff;transform:translateY(-2px)}
.quick-item i{font-size:18px;color:var(--gold);width:20px;text-align:center}
.quick-item span{font-size:14px;font-weight:600}

/* ============ 指标看板 ============ */
.metrics-section{background:var(--bg)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-card{
  background:var(--card);border-radius:var(--radius-lg);padding:36px 28px;
  box-shadow:var(--shadow-card);text-align:center;position:relative;overflow:hidden;
  transition:all var(--transition);
}
.metric-card::after{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--gold),var(--primary));
  opacity:0;transition:opacity var(--transition);
}
.metric-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.metric-card:hover::after{opacity:1}
.metric-number{
  font-size:52px;font-weight:900;color:var(--deep-dark);
  font-family:"Archivo","Oswald",system-ui,sans-serif;line-height:1.1;
}
.metric-suffix{color:var(--gold);font-weight:800;font-size:36px;margin-left:2px}
.metric-name{font-size:16px;font-weight:700;color:var(--text-main);margin-top:10px}
.metric-card p{font-size:13px;color:var(--text-muted);margin-top:8px}

/* ============ 服务矩阵 ============ */
.services-section{background:var(--card)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.service-card{
  background:#fff;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow-card);
  transition:all var(--transition);position:relative;
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.service-topbar{height:6px;background:linear-gradient(90deg,var(--primary),#6FB1E8)}
.service-card:nth-child(2) .service-topbar{background:linear-gradient(90deg,var(--gold),#E8CE7A)}
.service-card:nth-child(3) .service-topbar{background:linear-gradient(90deg,var(--deep-blue),#4A90D9)}
.service-card:nth-child(4) .service-topbar{background:linear-gradient(90deg,#7BBF6E,#A9D8A0)}
.service-card:nth-child(5) .service-topbar{background:linear-gradient(90deg,#C95A5A,#E79C9C)}
.service-card:nth-child(6) .service-topbar{background:linear-gradient(90deg,#7A6BBF,#ABA1D9)}
.service-card-inner{padding:30px 26px 26px;position:relative}
.service-icon{
  width:54px;height:54px;border-radius:16px;background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:22px;margin-bottom:18px;
}
.service-card h3{font-size:19px;font-weight:700;color:var(--deep-dark);margin-bottom:10px}
.service-card p{font-size:14px;color:var(--text-sec);line-height:1.7;min-height:72px}
.service-card .badge{position:absolute;top:18px;right:18px}
.service-stats{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--bg);border-radius:12px;margin-top:18px;padding:12px 0;
  border:1px solid var(--border);
}
.stat-cell{text-align:center;border-right:1px solid var(--border)}
.stat-cell:last-child{border-right:none}
.stat-cell strong{display:block;font-size:18px;font-weight:800;color:var(--deep-blue);line-height:1.2;font-family:"Archivo",system-ui,sans-serif}
.stat-cell span{font-size:12px;color:var(--text-muted)}
.service-link{
  display:inline-block;margin-top:16px;font-size:14px;font-weight:600;
  color:var(--primary);transition:all var(--transition);
}
.service-link:hover{color:var(--gold-hover);letter-spacing:.3px}
.service-link::after{content:' →';transition:transform var(--transition)}

/* ============ 论坛热帖 ============ */
.forum-section{background:var(--bg)}
.forum-grid{display:grid;grid-template-columns:1fr 340px;gap:32px}
.forum-list{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-card);overflow:hidden}
.forum-item{
  display:flex;align-items:center;gap:16px;
  padding:20px 26px;border-bottom:1px solid var(--border);
  transition:background var(--transition);
}
.forum-item:last-child{border-bottom:none}
.forum-item:hover{background:var(--primary-light)}
.forum-rank{
  font-size:28px;font-weight:900;color:var(--gold);
  font-family:"Archivo","Oswald",system-ui,sans-serif;width:40px;text-align:center;
  flex-shrink:0;
}
.forum-rank.hot{color:#C43B3B}
.forum-info{flex:1;min-width:0}
.forum-info a{font-size:15px;font-weight:600;color:var(--text-main);transition:color var(--transition);display:block;line-height:1.5}
.forum-info a:hover{color:var(--primary)}
.forum-meta{display:flex;gap:14px;margin-top:5px;font-size:12px;color:var(--text-muted)}
.forum-meta i{color:var(--gold);margin-right:4px}
.forum-heat{
  background:rgba(74,144,217,.1);border-radius:var(--radius-badge);
  padding:4px 14px;font-size:12px;font-weight:600;color:var(--primary-hover);
  display:flex;align-items:center;gap:6px;flex-shrink:0;
}
.forum-sidebar{display:flex;flex-direction:column;gap:24px}
.sidebar-card{
  background:#fff;border-radius:var(--radius-lg);padding:26px;
  border:1px solid var(--border);box-shadow:var(--shadow-card);
}
.sidebar-card h4{
  font-size:16px;font-weight:700;color:var(--deep-dark);
  padding-left:12px;position:relative;margin-bottom:18px;
}
.sidebar-card h4::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:16px;background:var(--gold);border-radius:2px;
}
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-list-item{display:flex;align-items:center;gap:10px;font-size:14px}
.rank-list-item .rank-num{width:22px;height:22px;border-radius:50%;background:var(--gold-light);color:#8A6D1D;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.rank-list-item span{color:var(--text-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-list-item em{font-style:normal;color:var(--text-muted);font-size:12px;margin-left:auto}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag-mini{
  padding:5px 13px;border-radius:var(--radius-badge);background:var(--bg);
  border:1px solid var(--border);font-size:12px;color:var(--text-sec);
  transition:all var(--transition);cursor:pointer;
}
.tag-mini:hover{background:var(--gold-light);border-color:var(--gold);color:var(--deep-dark)}
.sidebar-cta{
  background:linear-gradient(135deg,var(--deep-blue),var(--primary));
  border-radius:var(--radius-lg);padding:24px;color:#fff;text-align:center;
}
.sidebar-cta h4{color:#fff;font-size:16px;margin-bottom:8px}
.sidebar-cta p{font-size:13px;color:rgba(255,255,255,.8);margin-bottom:16px}
.sidebar-cta .btn{width:100%}

/* ============ 结果对比 VS ============ */
.compare-section{background:var(--card);position:relative}
.compare-wrap{
  display:grid;grid-template-columns:1fr 88px 1fr;gap:20px;align-items:stretch;
}
.compare-col{
  background:var(--bg);border-radius:var(--radius-lg);
  border:1px solid var(--border);padding:36px 32px;
  display:flex;flex-direction:column;
}
.compare-col h3{
  font-size:20px;font-weight:700;color:var(--deep-dark);margin-bottom:22px;
  text-align:center;
}
.compare-col ul{flex:1;display:flex;flex-direction:column;gap:14px;margin-bottom:28px}
.compare-col li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--text-sec);line-height:1.55;
}
.compare-col li i{flex-shrink:0;margin-top:4px;font-size:14px;width:18px;text-align:center}
.compare-col li.yes i{color:var(--gold)}
.compare-col li.no i{color:#C43B3B}
.compare-col .btn{margin-top:auto}
.vs-badge{
  align-self:center;width:64px;height:64px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold),#B8943A);
  display:flex;align-items:center;justify-content:center;justify-self:center;
  color:#fff;font-size:20px;font-weight:900;box-shadow:0 8px 24px rgba(212,175,55,.4);
  font-family:"Archivo","Oswald",system-ui,sans-serif;letter-spacing:1px;
  z-index:1;
}

/* ============ FAQ ============ */
.faq-section{background:var(--bg)}
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{
  background:#fff;border-radius:var(--radius-lg);
  border:1px solid var(--border);box-shadow:var(--shadow-card);
  transition:all var(--transition);overflow:hidden;
}
.faq-item.active{box-shadow:var(--shadow-hover);border-color:rgba(212,175,55,.4)}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:22px 26px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-main);
  transition:color var(--transition);
}
.faq-item.active .faq-question{color:var(--primary-hover)}
.faq-icon{
  width:28px;height:28px;border-radius:50%;background:var(--bg);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:transform .35s ease,background .35s ease;
}
.faq-icon i{font-size:12px;color:var(--text-muted);transition:color .35s ease}
.faq-item.active .faq-icon{transform:rotate(180deg);background:var(--gold-light)}
.faq-item.active .faq-icon i{color:var(--gold-hover)}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height .4s ease;
  padding:0 26px;
}
.faq-item.active .faq-answer{
  max-height:260px;padding-bottom:22px;
}
.faq-answer p{font-size:14px;line-height:1.8;color:var(--text-sec)}

/* ============ 平台保障 ============ */
.guarantees-section{background:var(--card)}
.guarantee-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.guarantee-item{
  display:flex;gap:18px;padding:28px;background:var(--bg);
  border-radius:var(--radius-lg);border:1px solid var(--border);
  transition:all var(--transition);
}
.guarantee-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);background:#fff}
.guarantee-icon{
  width:48px;height:48px;border-radius:14px;flex-shrink:0;
  background:var(--gold-light);display:flex;align-items:center;justify-content:center;
  color:var(--gold-hover);font-size:20px;
}
.guarantee-item h3{font-size:16px;font-weight:700;color:var(--deep-dark);margin-bottom:6px}
.guarantee-item p{font-size:13px;color:var(--text-sec);line-height:1.65}

/* ============ 热门专题 ============ */
.topics-section{background:var(--bg)}
.topics-cloud{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:center;max-width:880px;margin:0 auto;
  padding:20px;
}
.topic-tag{
  padding:12px 24px;background:#fff;border-radius:var(--radius-badge);
  border:1px solid var(--border);box-shadow:var(--shadow-card);
  font-size:14px;font-weight:600;color:var(--text-sec);
  transition:all var(--transition);cursor:pointer;
}
.topic-tag:hover{
  background:var(--deep-blue);color:#fff;border-color:var(--deep-blue);
  transform:translateY(-3px);box-shadow:0 10px 24px rgba(31,58,95,.2);
}
.topic-tag i{color:var(--gold);margin-right:6px;font-size:12px}

/* ============ 转化表单 ============ */
.form-section{
  background:linear-gradient(180deg,var(--bg) 0%,#E8EFF8 100%);
}
.form-card{
  max-width:720px;margin:0 auto;background:#fff;border-radius:20px;
  box-shadow:0 24px 60px rgba(31,63,95,.14);padding:48px 44px 36px;
  border:1px solid var(--border);
}
.form-card h2{font-size:26px;font-weight:700;color:var(--deep-dark);text-align:center;margin-bottom:8px}
.form-card .form-sub{font-size:14px;color:var(--text-sec);text-align:center;margin-bottom:36px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:600;color:var(--text-main);margin-bottom:8px}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:12px 16px;border:1px solid #D1D9E6;border-radius:var(--radius-input);
  background:#fff;font-size:15px;transition:all var(--transition);outline:none;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(74,144,217,.18);
}
.form-group textarea{resize:vertical;min-height:80px}
.form-submit-row{display:flex;align-items:center;gap:18px;margin-top:10px;flex-wrap:wrap}
.form-note{font-size:12px;color:var(--text-muted)}
.trust-badges{
  display:flex;justify-content:center;gap:14px;margin-top:28px;flex-wrap:wrap;
}
.trust-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 18px;border-radius:var(--radius-badge);
  background:var(--bg);border:1px solid var(--border);
  font-size:13px;font-weight:600;color:var(--deep-blue);
}
.trust-badge i{color:var(--gold);font-size:13px}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep-blue);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.3fr .8fr 1fr;gap:48px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .footer-logo{
  display:flex;align-items:center;gap:10px;margin-bottom:16px;
  color:#fff;font-size:20px;font-weight:800;
}
.footer-brand .footer-logo .logo-icon{width:34px;height:34px;font-size:15px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:360px}
.footer-links-col h4,.footer-info h4{
  color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;
  position:relative;padding-left:12px;
}
.footer-links-col h4::before,.footer-info h4::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:14px;background:var(--gold);border-radius:2px;
}
.footer-links-col ul{display:flex;flex-direction:column;gap:10px}
.footer-links-col a{font-size:14px;color:rgba(255,255,255,.68);transition:all var(--transition)}
.footer-links-col a:hover{color:var(--gold);padding-left:4px}
.footer-info p{font-size:14px;margin-bottom:12px;line-height:1.7}
.footer-bottom{
  padding:20px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.65);font-size:13px}
.footer-bottom a:hover{color:var(--gold)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .nav-links .nav-link:nth-child(4),.nav-links .nav-link:nth-child(5){display:none}
  .search-box{width:130px}
  .hero{padding-top:110px}
  .hero h1{font-size:42px}
  .hero-panel{flex-direction:column;gap:24px;padding:26px}
  .hd-divider{width:100%;height:1px}
  .tier-preview{width:100%}
  .forum-grid{grid-template-columns:1fr}
  .compare-wrap{grid-template-columns:1fr;gap:20px}
  .vs-badge{width:52px;height:52px;font-size:16px}
  .guarantee-grid{grid-template-columns:1fr;gap:18px}
}
@media (max-width:767px){
  .section{padding:var(--gap-section-m) 0}
  .section-head h2{font-size:24px}
  .form-row{grid-template-columns:1fr}
  .hero-quicknav{grid-template-columns:1fr;gap:12px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .hero-intro{font-size:14px}
  .hero-ctas{flex-direction:column;width:100%;align-items:center}
  .hero-ctas .btn{width:100%;max-width:280px}
  .metric-number{font-size:40px}
  .metric-suffix{font-size:28px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .form-card{padding:32px 22px 26px}
  .nav-dock{height:56px;padding:0 12px}
  .logo-text{font-size:15px}
  .logo-sub{display:none}
  .logo-divider{display:none}
  .logo-icon{width:30px;height:30px;font-size:13px}
  .nav-links .nav-link{padding:7px 10px;font-size:12px}
  .nav-links .nav-link:nth-child(3),.nav-links .nav-link:nth-child(4),.nav-links .nav-link:nth-child(5){display:none}
  .search-box{display:none}
  .btn-small{padding:7px 14px;font-size:12px}
  .hero-panel{padding:20px}
  .progress-ring{width:110px;height:110px}
  .ring-svg{width:110px;height:110px}
  .ring-value{font-size:28px}
}
@media (max-width:575px){
  .service-grid{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr}
  .forum-item{padding:16px 18px;flex-wrap:wrap}
  .forum-rank{font-size:22px;width:30px}
  .forum-heat{font-size:11px;padding:3px 10px}
  .compare-col{padding:26px 20px}
  .site-nav{top:10px}
  .hero{padding-top:90px}
  .hero-ctas{margin-bottom:36px}
  .vs-badge{font-size:14px}
}

/* roulang page: category1 */
:root {
            --primary: #4A90D9;
            --primary-hover: #3B7FBD;
            --primary-light: rgba(74, 144, 217, 0.10);
            --navy: #25496D;
            --navy-dark: #1F3A5F;
            --gold: #D4AF37;
            --gold-hover: #C9A227;
            --gold-light: rgba(212, 175, 55, 0.12);
            --bg: #F5F8FC;
            --card-bg: #FFFFFF;
            --border: #E5EAF0;
            --text-main: #1F2937;
            --text-sub: #4B5563;
            --text-muted: #9CA3AF;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --radius-nav: 20px;
            --radius-pill: 999px;
            --shadow: 0 12px 32px rgba(59, 125, 214, 0.10);
            --shadow-hover: 0 18px 40px rgba(59, 125, 214, 0.18);
            --nav-shadow: 0 8px 28px rgba(31, 63, 95, 0.12);
            --transition: 0.25s ease;
            --container: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: var(--navy);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 浮动Dock导航 ========== */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            display: flex;
            justify-content: center;
            pointer-events: none;
            padding: 0 16px;
        }

        .nav-dock {
            pointer-events: auto;
            max-width: 1080px;
            width: 100%;
            height: 62px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 18px;
            background: rgba(255, 255, 255, 0.85);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-radius: var(--radius-nav);
            box-shadow: var(--nav-shadow);
            border: 1px solid rgba(255, 255, 255, 0.6);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .nav-dock.scrolled {
            background: rgba(255, 255, 255, 0.92);
            box-shadow: 0 10px 34px rgba(31, 63, 95, 0.16);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--gold);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
        }

        .logo-text {
            font-size: 17px;
            font-weight: 700;
            color: var(--navy-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-divider {
            margin: 0 3px;
            color: var(--gold);
        }

        .logo-sub {
            font-weight: 500;
            color: var(--text-sub);
            font-size: 15px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 12px;
        }

        .nav-link {
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-link.active {
            background: var(--gold);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(212, 175, 55, 0.25);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 6px;
            width: 180px;
            height: 38px;
            padding: 0 12px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.15);
        }

        .search-box i {
            color: var(--text-muted);
            font-size: 13px;
        }

        .search-box input {
            border: none;
            background: transparent;
            width: 100%;
            font-size: 13px;
            color: var(--text-main);
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(74, 144, 217, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 22px rgba(74, 144, 217, 0.32);
            transform: translateY(-2px);
        }

        .btn-small {
            padding: 7px 18px;
            font-size: 13px;
            border-radius: var(--radius-pill);
        }

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

        .btn-outline-gold:hover {
            background: var(--gold-light);
            border-color: var(--gold-hover);
            color: var(--navy);
            transform: translateY(-2px);
        }

        /* ========== 分类横幅 ========== */
        .category-banner {
            position: relative;
            padding: 150px 0 90px;
            background: linear-gradient(to bottom, rgba(31, 58, 95, 0.82), rgba(37, 73, 109, 0.68)), url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            color: #fff;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 22px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb .sep {
            color: var(--gold);
        }

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

        .banner-content .h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 1px;
            margin-bottom: 18px;
            color: #fff;
        }

        .banner-content .banner-desc {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 28px;
            max-width: 640px;
        }

        .banner-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-banner-outline {
            background: rgba(255, 255, 255, 0.12);
            border: 1.5px solid var(--gold);
            color: #fff;
        }

        .btn-banner-outline:hover {
            background: rgba(212, 175, 55, 0.2);
            border-color: var(--gold);
            color: #fff;
            transform: translateY(-2px);
        }

        .banner-meta {
            display: flex;
            gap: 24px;
            margin-top: 34px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
        }

        .banner-meta span {
            display: flex;
            align-items: center;
            gap: 7px;
        }

        .banner-meta i {
            color: var(--gold);
        }

        /* ========== 筛选标签 ========== */
        .filter-section {
            padding: 36px 0 4px;
        }

        .filter-tabs {
            display: flex;
            gap: 10px;
            flex-wrap: nowrap;
            overflow-x: auto;
            padding: 4px 0 12px;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }

        .filter-tabs::-webkit-scrollbar {
            height: 4px;
        }

        .filter-tabs::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }

        .filter-tab {
            flex-shrink: 0;
            padding: 8px 22px;
            border-radius: var(--radius-pill);
            background: #fff;
            border: 1px solid var(--border);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .filter-tab.active {
            background: var(--gold);
            border-color: var(--gold);
            color: #fff;
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.3);
        }

        .filter-count {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            padding-left: 4px;
        }

        /* ========== 工作室卡片网格 ========== */
        .studio-section {
            padding: 46px 0 30px;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 36px;
        }

        .section-title-wrap {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .section-title-bar {
            width: 5px;
            height: 34px;
            background: var(--gold);
            border-radius: 3px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--navy-dark);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-sub);
            margin-top: 6px;
            max-width: 640px;
        }

        .studio-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .studio-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid rgba(229, 234, 240, 0.5);
        }

        .studio-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .studio-card-img {
            position: relative;
            height: 190px;
            overflow: hidden;
        }

        .studio-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .studio-card:hover .studio-card-img img {
            transform: scale(1.03);
        }

        .studio-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.92);
            color: var(--navy);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .studio-tag.hot {
            background: var(--gold);
            color: #fff;
        }

        .studio-card-body {
            padding: 20px 22px 22px;
        }

        .studio-name-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 6px;
        }

        .studio-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--navy-dark);
        }

        .studio-rating {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--gold);
            font-weight: 700;
            font-size: 15px;
        }

        .studio-rating i {
            font-size: 13px;
        }

        .studio-location {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
            margin-bottom: 14px;
        }

        .studio-location i {
            color: var(--primary);
            font-size: 12px;
        }

        .studio-points {
            margin-bottom: 18px;
        }

        .studio-points li {
            font-size: 14px;
            color: var(--text-sub);
            padding: 3px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }

        .studio-points li i {
            color: var(--gold);
            font-size: 12px;
            margin-top: 5px;
            flex-shrink: 0;
        }

        .studio-card-actions {
            display: flex;
            gap: 10px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--navy);
            padding: 8px 16px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .btn-studio-book {
            flex: 1;
            background: var(--primary);
            color: #fff;
            padding: 8px 16px;
            font-size: 13px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 12px rgba(74, 144, 217, 0.2);
        }

        .btn-studio-book:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 6px 16px rgba(74, 144, 217, 0.3);
            transform: translateY(-2px);
        }

        /* ========== 论坛热帖精选 ========== */
        .topics-section {
            padding: 46px 0 30px;
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .topics-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .topic-row {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 12px;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }

        .topic-row:last-child {
            border-bottom: none;
        }

        .topic-row:hover {
            background: var(--bg);
        }

        .topic-rank {
            font-size: 26px;
            font-weight: 800;
            color: var(--gold);
            font-family: "Oswald", "Impact", system-ui, sans-serif;
            width: 52px;
            text-align: center;
            flex-shrink: 0;
            opacity: 0.9;
        }

        .topic-rank.rank-1 {
            font-size: 30px;
            color: var(--gold-hover);
        }

        .topic-content {
            flex: 1;
        }

        .topic-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 2px;
            transition: color var(--transition);
            cursor: pointer;
        }

        .topic-title:hover {
            color: var(--primary);
        }

        .topic-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        .topic-heat {
            background: var(--gold-light);
            color: var(--gold-hover);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 56px 0 30px;
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

        .faq-item.active {
            box-shadow: var(--shadow);
            border-color: rgba(74, 144, 217, 0.25);
        }

        .faq-question {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--navy-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color var(--transition);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            background: var(--gold);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.9;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        /* ========== CTA横幅 ========== */
        .cta-banner {
            padding: 70px 0;
            position: relative;
            background: linear-gradient(135deg, var(--navy-dark), var(--navy));
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--gold), transparent);
        }

        .cta-banner::after {
            content: "\f6d0";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: 30px;
            bottom: -20px;
            font-size: 180px;
            opacity: 0.05;
            color: var(--gold);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-content .h2 {
            color: #fff;
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 28px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-gold {
            background: var(--gold);
            color: #fff;
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.35);
        }

        .btn-gold:hover {
            background: var(--gold-hover);
            color: #fff;
            box-shadow: 0 10px 28px rgba(212, 175, 55, 0.45);
            transform: translateY(-2px);
        }

        .btn-white-outline {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .btn-white-outline:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: var(--navy-dark);
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.9;
            max-width: 420px;
        }

        .footer-links-col h4,
        .footer-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--navy-dark);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-links-col h4::after,
        .footer-info h4::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
        }

        .footer-links-col ul li {
            margin-bottom: 8px;
        }

        .footer-links-col ul li a {
            font-size: 14px;
            color: var(--text-sub);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-info p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 8px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 18px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== 响应式断点 ========== */
        @media (max-width: 1199px) {
            .studio-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 991px) {
            .nav-dock {
                height: 60px;
                padding: 0 14px;
            }

            .nav-links {
                gap: 2px;
            }

            .nav-link {
                padding: 7px 10px;
                font-size: 13px;
            }

            .search-box {
                width: 150px;
            }

            .studio-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .category-banner {
                padding: 130px 0 70px;
            }

            .banner-content .h1 {
                font-size: 38px;
            }
        }

        @media (max-width: 767px) {
            .site-nav {
                top: 10px;
                padding: 0 10px;
            }

            .nav-dock {
                height: 56px;
                padding: 0 12px;
                border-radius: 16px;
            }

            .logo-text {
                font-size: 15px;
            }

            .logo-sub {
                display: none;
            }

            .nav-links {
                gap: 2px;
                margin: 0 6px;
                overflow-x: auto;
                scrollbar-width: none;
            }

            .nav-links::-webkit-scrollbar {
                display: none;
            }

            .nav-link {
                padding: 6px 10px;
                font-size: 12px;
            }

            .nav-actions {
                gap: 6px;
            }

            .search-box {
                display: none;
            }

            .btn-small {
                padding: 6px 14px;
                font-size: 12px;
            }

            .category-banner {
                padding: 110px 0 50px;
            }

            .banner-content .h1 {
                font-size: 30px;
            }

            .banner-content .banner-desc {
                font-size: 14px;
            }

            .banner-actions .btn {
                padding: 9px 18px;
                font-size: 13px;
            }

            .banner-meta {
                gap: 12px;
                font-size: 12px;
            }

            .filter-tabs {
                gap: 8px;
            }

            .filter-tab {
                padding: 7px 16px;
                font-size: 13px;
            }

            .section-title {
                font-size: 24px;
            }

            .section-subtitle {
                font-size: 14px;
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }

            .studio-grid {
                grid-template-columns: 1fr;
            }

            .studio-card-img {
                height: 170px;
            }

            .topic-title {
                font-size: 14px;
            }

            .topic-rank {
                font-size: 21px;
                width: 36px;
            }

            .topic-heat {
                font-size: 11px;
                padding: 3px 10px;
            }

            .topic-row {
                gap: 12px;
                padding: 14px 8px;
            }

            .faq-question {
                font-size: 14px;
                padding: 15px 16px;
            }

            .faq-answer {
                font-size: 14px;
            }

            .cta-content .h2 {
                font-size: 25px;
            }

            .cta-content p {
                font-size: 14px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                padding: 16px 0;
            }

            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 575px) {
            .nav-link:nth-child(4) {
                display: none;
            }

            .nav-link:nth-child(3) {
                display: none;
            }

            .nav-links {
                justify-content: center;
            }

            .btn-small {
                padding: 5px 12px;
                font-size: 12px;
            }
        }