/* ============================================
   Meisheng - 线路页面
   ============================================ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{font-size:16px;scroll-behavior:smooth;}
body{
    font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
    background:#0a0e17;color:#c8cdd8;min-height:100vh;line-height:1.6;overflow-x:hidden;
}
.app{min-height:100vh;display:flex;flex-direction:column;position:relative;}
[v-cloak]{display:none;}

/* 背景粒子 */
.bg-particles{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0;overflow:hidden;}
.particle{position:absolute;border-radius:50%;opacity:.08;-webkit-animation:fp 20s infinite ease-in-out;animation:fp 20s infinite ease-in-out;}
.p1{width:400px;height:400px;background:radial-gradient(circle,#e8963e,transparent 70%);top:-100px;right:-100px;-webkit-animation-delay:0s;animation-delay:0s;}
.p2{width:300px;height:300px;background:radial-gradient(circle,#1a73e8,transparent 70%);bottom:10%;left:-80px;-webkit-animation-delay:-5s;animation-delay:-5s;}
.p3{width:250px;height:250px;background:radial-gradient(circle,#22a855,transparent 70%);top:40%;right:10%;-webkit-animation-delay:-10s;animation-delay:-10s;}
.p4{width:200px;height:200px;background:radial-gradient(circle,#e8963e,transparent 70%);bottom:-50px;right:30%;-webkit-animation-delay:-15s;animation-delay:-15s;}
.p5{width:350px;height:350px;background:radial-gradient(circle,#1a73e8,transparent 70%);top:20%;left:20%;-webkit-animation-delay:-8s;animation-delay:-8s;}
@-webkit-keyframes fp{0%,100%{-webkit-transform:translate(0,0) scale(1);transform:translate(0,0) scale(1);}25%{-webkit-transform:translate(30px,-40px) scale(1.1);transform:translate(30px,-40px) scale(1.1);}50%{-webkit-transform:translate(-20px,20px) scale(.95);transform:translate(-20px,20px) scale(.95);}75%{-webkit-transform:translate(40px,30px) scale(1.05);transform:translate(40px,30px) scale(1.05);}}
@keyframes fp{0%,100%{-webkit-transform:translate(0,0) scale(1);transform:translate(0,0) scale(1);}25%{-webkit-transform:translate(30px,-40px) scale(1.1);transform:translate(30px,-40px) scale(1.1);}50%{-webkit-transform:translate(-20px,20px) scale(.95);transform:translate(-20px,20px) scale(.95);}75%{-webkit-transform:translate(40px,30px) scale(1.05);transform:translate(40px,30px) scale(1.05);}}

/* Header */
.header{position:relative;z-index:10;border-bottom:1px solid rgba(255,255,255,.06);background:rgba(10,14,23,.8);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);}
.header-inner{max-width:1200px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;}
.logo-area{display:flex;align-items:center;gap:10px;}
.logo-img{height:32px;width:auto;}
.header-right{display:flex;align-items:center;gap:12px;}
.header-tag{font-size:10px;letter-spacing:2px;color:#e8963e;border:1px solid rgba(232,150,62,.3);padding:3px 10px;border-radius:3px;font-weight:600;}

/* Main */
.main-content{-webkit-box-flex:1;-ms-flex:1;flex:1;position:relative;z-index:1;}

/* Banner */
.banner-section{padding:16px 24px 12px;}
.banner-inner{max-width:1200px;margin:0 auto;position:relative;border-radius:12px;overflow:hidden;}
.banner-img{width:100%;height:auto;display:block;max-height:200px;-o-object-fit:cover;object-fit:cover;}
.banner-overlay{position:absolute;top:0;left:0;width:100%;height:100%;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;padding-left:40px;}
.banner-title{font-size:28px;font-weight:700;color:#fff;margin-bottom:6px;text-shadow:0 2px 10px rgba(0,0,0,.4);}
.banner-desc{font-size:14px;color:rgba(255,255,255,.8);text-shadow:0 1px 6px rgba(0,0,0,.3);}

/* Lines Section */
.lines-section{padding:10px 24px 60px;max-width:1248px;margin:0 auto;}
.recheck-btn{display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;align-items:center;gap:6px;padding:5px 18px;border-radius:16px;font-size:12px;color:#c8cdd8;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);cursor:pointer;-webkit-transition:all .2s;transition:all .2s;font-family:inherit;font-weight:500;}
.recheck-btn:hover:not(:disabled){background:rgba(232,150,62,.15);color:#e8963e;border-color:rgba(232,150,62,.35);}
.recheck-btn:disabled{cursor:not-allowed;opacity:.6;}
.recheck-icon{width:14px;height:14px;-webkit-transition:-webkit-transform .3s;transition:transform .3s;}
.is-checking .recheck-icon{-webkit-animation:spin 1s linear infinite;animation:spin 1s linear infinite;}
@-webkit-keyframes spin{from{-webkit-transform:rotate(0)}to{-webkit-transform:rotate(360deg)}}
@keyframes spin{from{-webkit-transform:rotate(0);transform:rotate(0)}to{-webkit-transform:rotate(360deg);transform:rotate(360deg)}}

/* Grid */
.lines-grid{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;gap:20px;}
.line-group{margin-bottom:28px;}
.group-header{display:-webkit-box;display:-ms-flexbox;display:flex;align-items:center;gap:10px;margin-bottom:10px;padding-left:4px;-ms-flex-wrap:wrap;flex-wrap:wrap;}
.group-icon-wrap{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,rgba(232,150,62,.15),rgba(232,150,62,.05));display:flex;align-items:center;justify-content:center;color:#e8963e;}
.group-icon-wrap.icon-center{background:linear-gradient(135deg,rgba(26,115,232,.15),rgba(26,115,232,.05));color:#1a73e8;}
.group-title{font-size:16px;font-weight:600;color:#e0e4ec;}
.group-badge{font-size:9px;letter-spacing:1.5px;padding:2px 8px;border-radius:3px;background:rgba(232,150,62,.12);color:#e8963e;font-weight:600;margin-right:auto;}
.badge-center{background:rgba(26,115,232,.12);color:#1a73e8;}
.line-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}

/* Card */
.line-card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:14px 14px 10px;cursor:pointer;-webkit-transition:all .25s ease;transition:all .25s ease;position:relative;overflow:hidden;}
.line-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,#e8963e,transparent);opacity:0;-webkit-transition:opacity .25s;transition:opacity .25s;}
.line-card:hover{background:rgba(255,255,255,.06);border-color:rgba(232,150,62,.25);-webkit-transform:translateY(-2px);transform:translateY(-2px);box-shadow:0 8px 30px rgba(0,0,0,.3);}
.line-card:hover::before{opacity:1;}
.line-card.card-center::before{background:linear-gradient(90deg,#1a73e8,transparent);}
.line-card.card-center:hover{border-color:rgba(26,115,232,.25);}
.line-card.is-best{border-color:rgba(232,150,62,.3);background:rgba(232,150,62,.04);}
.line-card.is-best::before{opacity:1;}
.line-card.card-center.is-best{border-color:rgba(26,115,232,.3);background:rgba(26,115,232,.04);}

.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px;}
.line-label{font-size:11px;color:#6b7280;letter-spacing:.5px;text-transform:uppercase;font-weight:500;}
.best-tag{font-size:10px;padding:1px 8px;border-radius:10px;background:linear-gradient(135deg,#e8963e,#d4792a);color:#fff;font-weight:600;}
.tag-center{background:linear-gradient(135deg,#1a73e8,#1557b0);}

.card-status-row{display:flex;align-items:center;gap:10px;margin-bottom:8px;-ms-flex-wrap:wrap;flex-wrap:wrap;}

/* ========== 信号格 ========== */
.signal-wrap{display:inline-flex;align-items:flex-end;gap:0;position:relative;height:20px;width:28px;-ms-flex-negative:0;flex-shrink:0;}
.signal-bars{display:inline-flex;align-items:flex-end;gap:2px;height:18px;}
.bar{display:block;width:4px;border-radius:1px;-webkit-transition:background .3s;transition:background .3s;}
.bar1{height:5px;}
.bar2{height:9px;}
.bar3{height:13px;}
.bar4{height:17px;}
.bar-green{background:#22a855;}
.bar-yellow{background:#f59e0b;}
.bar-red{background:#e53e3e;opacity:.4;}
.bar-dark{background:rgba(255,255,255,.1);}
.bar-gray{background:rgba(255,255,255,.15);-webkit-animation:pulse 1.2s infinite;animation:pulse 1.2s infinite;}

.signal-x{position:absolute;top:-1px;right:-3px;font-size:10px;color:#e53e3e;font-weight:700;line-height:1;}

@-webkit-keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}

/* ========== DNS 状态（合并后只有正常/异常） ========== */
.dns-badge{display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:10px;font-size:11px;font-weight:600;white-space:nowrap;-webkit-transition:all .3s;transition:all .3s;}
.dns-checking{background:rgba(255,255,255,.05);color:#6b7280;}
.dns-ok{background:rgba(34,168,85,.12);color:#22a855;}
.dns-warn{background:rgba(245,158,11,.12);color:#f59e0b;-webkit-animation:blink 1.5s infinite;animation:blink 1.5s infinite;}
.dns-bad{background:rgba(229,62,62,.12);color:#e53e3e;-webkit-animation:blink 1.5s infinite;animation:blink 1.5s infinite;}
@-webkit-keyframes blink{0%,100%{opacity:1}50%{opacity:.6}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.6}}

/* Card action */
.card-action{display:flex;align-items:center;justify-content:flex-end;gap:4px;color:#8a90a0;font-size:12px;font-weight:500;padding-top:4px;border-top:1px solid rgba(255,255,255,.04);-webkit-transition:all .2s;transition:all .2s;}
.card-action svg{width:18px;height:18px;-webkit-transition:-webkit-transform .2s;transition:transform .2s;}
.action-text{-webkit-transition:color .2s;transition:color .2s;}
.line-card:hover .card-action{color:#e8963e;border-top-color:rgba(232,150,62,.15);}
.line-card:hover .card-action svg{-webkit-transform:translateX(3px);transform:translateX(3px);}
.line-card.card-center:hover .card-action{color:#1a73e8;border-top-color:rgba(26,115,232,.15);}

/* ========== iframe 全屏视图 ========== */
.iframe-out{width:100%;height:100vh;position:fixed;top:0;left:0;z-index:99999;background:#0a0e17;}
.iframe-el{width:100%;height:100%;min-height:100vh;display:block;border:none;}
.float-box{position:fixed;right:20px;bottom:100px;z-index:100000;}
.float-btn{width:48px;height:48px;border-radius:50%;display:-webkit-box;display:-ms-flexbox;display:flex;align-items:center;justify-content:center;background:#e8963e;cursor:pointer;position:relative;z-index:100001;box-shadow:0 4px 15px rgba(232,150,62,.4);}
.float-icon{width:22px;height:22px;}
.float-menu{position:absolute;width:auto;bottom:0;right:56px;display:-webkit-box;display:-ms-flexbox;display:flex;gap:4px;background:#1a1f2e;border-radius:24px;padding:6px 12px;box-shadow:0 4px 20px rgba(0,0,0,.5);white-space:nowrap;}
.float-menu-item{text-align:center;font-size:11px;color:#c8cdd8;cursor:pointer;padding:4px 10px;border-radius:16px;-webkit-transition:background .2s;transition:background .2s;}
.float-menu-item:hover{background:rgba(255,255,255,.08);}
.float-menu-icon{width:20px;height:20px;display:block;margin:0 auto 2px;-webkit-filter:brightness(0) invert(1);filter:brightness(0) invert(1);opacity:.85;}

/* 两卡片布局 */
.two-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;}

/* 提示栏 */
.tip-bar{max-width:1200px;margin:16px auto 50px;padding:10px 16px;background:rgba(232,150,62,.06);border:1px solid rgba(232,150,62,.15);border-radius:8px;display:-webkit-box;display:-ms-flexbox;display:flex;align-items:center;gap:8px;font-size:12px;color:#8a90a0;}
.tip-bar svg{color:#e8963e;-ms-flex-negative:0;flex-shrink:0;}
.tip-bar a{color:#e8963e;text-decoration:none;font-weight:600;cursor:pointer;}
.tip-bar a:hover{text-decoration:underline;}

/* Footer */
.footer{position:fixed;bottom:0;left:0;width:100%;z-index:10;border-top:1px solid rgba(255,255,255,.04);padding:10px 24px;text-align:center;background:rgba(10,14,23,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);}
.footer-inner{max-width:1200px;margin:0 auto;}
.footer-text{font-size:11px;color:#4a5060;margin-bottom:4px;}
.footer-risk{font-size:10px;color:#3a3f4a;line-height:1.4;max-width:700px;margin:0 auto;}

/* Responsive */
@media screen and (max-width:1200px){
    .line-cards-5,.line-cards-6{grid-template-columns:repeat(3,1fr);}
}
@media screen and (max-width:1024px){
    .line-cards,.line-cards-3,.line-cards-4,.line-cards-5,.line-cards-6{grid-template-columns:repeat(3,1fr);}
    .banner-title{font-size:22px;}
}
@media screen and (max-width:768px){
    .banner-title{font-size:20px;}
}
@media screen and (max-width:600px){
    .line-cards,.line-cards-3,.line-cards-4,.line-cards-5,.line-cards-6{grid-template-columns:1fr 1fr;gap:10px;}
    .two-cards{grid-template-columns:1fr;}
    .banner-overlay{padding-left:20px;}
    .banner-title{font-size:18px;}
    .line-card{padding:14px 12px 12px;}
    .lines-section{padding:10px 16px 30px;}
    .banner-section{padding:10px 16px;}
    .header-inner{padding:12px 16px;}
}
@media screen and (max-width:400px){
    .line-cards,.line-cards-3,.line-cards-4,.line-cards-5,.line-cards-6{grid-template-columns:1fr;}
}

/* ========== 社交媒体浏览器提示遮罩 ========== */
#browser-tip-overlay{position:fixed;top:0;left:0;width:100%;height:100%;z-index:999999;}
.bt-mask{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.85);}
.bt-card{
    position:absolute;top:50%;left:50%;
    -webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);
    width:calc(100% - 48px);max-width:360px;
    background:#1a1f2e;border-radius:16px;padding:32px 24px 28px;
    text-align:center;border:1px solid rgba(255,255,255,.08);
    box-shadow:0 20px 60px rgba(0,0,0,.5);
}
.bt-icon-wrap{width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;background:rgba(34,168,85,.12);color:#22a855;}
.bt-title{font-size:20px;font-weight:700;color:#e0e4ec;margin-bottom:10px;}
.bt-desc{font-size:13px;color:#8a90a0;margin-bottom:20px;line-height:1.6;}
.bt-steps{text-align:left;margin-bottom:24px;padding:0 8px;}
.bt-step{display:flex;align-items:center;gap:12px;padding:10px 12px;background:rgba(255,255,255,.03);border-radius:10px;margin-bottom:10px;position:relative;}
.bt-step-num{width:24px;height:24px;border-radius:50%;background:#e8963e;color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;-ms-flex-negative:0;flex-shrink:0;}
.bt-step-text{font-size:13px;color:#c8cdd8;-webkit-box-flex:1;-ms-flex:1;flex:1;}
.bt-step-text strong{color:#e8963e;}
.bt-step-arrow{position:absolute;right:8px;top:50%;-webkit-transform:translateY(-50%);transform:translateY(-50%);color:rgba(232,150,62,.4);}
.bt-copy-btn{
    width:100%;padding:12px 0;border-radius:10px;border:none;
    background:linear-gradient(135deg,#e8963e,#d4792a);color:#fff;
    font-size:15px;font-weight:600;cursor:pointer;display:flex;
    align-items:center;justify-content:center;gap:8px;
    font-family:inherit;-webkit-transition:opacity .2s;transition:opacity .2s;
}
.bt-copy-btn:active{opacity:.85;}
.bt-copied{font-size:13px;color:#22a855;margin-top:14px;}

@media screen and (max-width:360px){
    .bt-card{padding:24px 16px 20px;}
    .bt-title{font-size:18px;}
    .bt-step-text{font-size:12px;}
}