/* ===== 速修达 全站样式 ===== */
:root{
  --blue:#0f5fe0;
  --blue-dark:#0a48ad;
  --blue-light:#eaf2ff;
  --orange:#ff7a1a;
  --orange-dark:#f06a00;
  --text:#1f2d3d;
  --text-2:#5e6d82;
  --text-3:#97a3b3;
  --border:#e6ebf1;
  --bg:#f5f7fa;
  --white:#fff;
  --radius:12px;
  --shadow:0 6px 24px rgba(15,95,224,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--text);background:var(--white);line-height:1.6;font-size:15px}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;cursor:pointer;border-radius:8px;font-size:15px;font-weight:600;padding:12px 28px;transition:all .25s;font-family:inherit}
.btn-lg{padding:15px 36px;font-size:17px}
.btn-block{width:100%}
.btn-primary{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;box-shadow:0 4px 14px rgba(255,122,26,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,122,26,.45)}
.btn-outline{border:2px solid #fff;color:#fff;background:transparent}
.btn-outline:hover{background:rgba(255,255,255,.15)}

/* 顶部条 */
.topbar{background:var(--blue-dark);color:#cfe0ff;font-size:13px;padding:7px 0}
.topbar-inner{display:flex;justify-content:space-between}
.topbar b{color:#fff;font-size:14px;letter-spacing:1px}

/* 导航 */
.nav{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,var(--blue),#3b82f6);color:#fff;font-size:22px;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 10px rgba(15,95,224,.3)}
.logo-text{font-size:22px;font-weight:800;color:var(--blue);letter-spacing:1px}
.logo-text i{display:block;font-style:normal;font-size:10px;color:var(--text-3);letter-spacing:3px;font-weight:400}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{font-size:15px;font-weight:500;color:var(--text);transition:color .2s}
.nav-links a:hover{color:var(--blue)}
.nav-links .nav-cta{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;padding:9px 22px;border-radius:20px;font-weight:600}
.nav-links .nav-cta:hover{color:#fff;transform:translateY(-1px)}
.nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--text)}

/* Hero */
.hero{background:linear-gradient(135deg,#0a48ad 0%,#0f5fe0 55%,#3b82f6 100%);color:#fff;padding:64px 0 72px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.06)}
.hero::before{content:"";position:absolute;left:40%;bottom:-160px;width:360px;height:360px;border-radius:50%;background:rgba(255,255,255,.05)}
.hero-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;position:relative;z-index:1}
.hero-badge{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);padding:6px 16px;border-radius:20px;font-size:13px;margin-bottom:22px}
.hero h1{font-size:44px;line-height:1.3;font-weight:800;letter-spacing:1px}
.hero h1 em{font-style:normal;color:#ffd591}
.hero-sub{margin:20px 0 30px;font-size:16px;color:#dbe7ff;line-height:1.9}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-points{display:flex;gap:22px;margin-top:28px;font-size:14px;color:#cfe0ff;flex-wrap:wrap}
.hero-img{position:relative}
.hero-img img{border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.35);border:4px solid rgba(255,255,255,.2)}
.hero-card{position:absolute;left:-26px;bottom:26px;background:#fff;color:var(--text);border-radius:12px;padding:14px 22px;box-shadow:0 10px 30px rgba(0,0,0,.25);text-align:center}
.hero-card b{display:block;font-size:26px;color:var(--orange);font-weight:800}
.hero-card span{font-size:12px;color:var(--text-2)}

/* 数据统计 */
.stats{background:#fff;padding:38px 0;border-bottom:1px solid var(--border)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat b{font-size:38px;font-weight:800;color:var(--blue);display:block}
.stat span{color:var(--text-2);font-size:14px}

/* 实时订单滚动 */
.ticker-wrap{background:#fff9f2;border-bottom:1px solid #ffe8d1;padding:10px 0}
.ticker{display:flex;align-items:center;gap:16px;overflow:hidden}
.ticker-label{flex-shrink:0;color:var(--orange-dark);font-weight:700;font-size:14px}
.ticker-body{flex:1;height:26px;overflow:hidden;position:relative}
.ticker-body ul{list-style:none;position:absolute;width:100%;transition:transform .5s ease}
.ticker-body li{height:26px;line-height:26px;font-size:13.5px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ticker-body li b{color:var(--blue);font-weight:600}
.ticker-body li .t-time{color:var(--text-3);font-size:12px;margin-left:8px}

/* 通用 section */
.section{padding:72px 0}
.section-gray{background:var(--bg)}
.section-blue{background:linear-gradient(135deg,#0a48ad,#0f5fe0);color:#fff}
.sec-title{text-align:center;font-size:32px;font-weight:800;letter-spacing:1px}
.sec-sub{text-align:center;color:var(--text-2);margin:12px 0 44px;font-size:15px}
.sec-title-light{color:#fff}
.sec-sub-light{color:#cfe0ff}

/* 服务项目 */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.service-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px 22px;text-align:center;transition:all .25s;cursor:pointer}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue)}
.service-card .s-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:16px;background:var(--blue-light);display:flex;align-items:center;justify-content:center;font-size:30px}
.service-card h3{font-size:17px;margin-bottom:8px}
.service-card p{font-size:13px;color:var(--text-2);margin-bottom:12px;min-height:40px}
.service-card .s-price{color:var(--orange);font-weight:700;font-size:15px}
.service-card .s-price i{font-style:normal;font-size:12px;color:var(--text-3);font-weight:400}

/* 服务流程 */
.process-grid{display:flex;align-items:stretch;justify-content:center;gap:10px;flex-wrap:wrap}
.step{background:#fff;border-radius:var(--radius);padding:26px 18px;width:190px;text-align:center;box-shadow:0 3px 12px rgba(0,0,0,.05);border-top:3px solid var(--blue)}
.step i{display:inline-flex;width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;font-style:normal;font-weight:800;font-size:18px;align-items:center;justify-content:center;margin-bottom:12px}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:13px;color:var(--text-2)}
.step-arrow{display:flex;align-items:center;color:var(--text-3);font-size:22px}

/* 案例 */
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:all .25s}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.case-media{position:relative;height:200px;overflow:hidden;background:#0b1220}
.case-media img,.case-media video{height:100%;width:100%;object-fit:cover;display:block}
.cm-play{position:absolute;top:10px;left:10px;font-style:normal;font-size:12px;color:#fff;background:rgba(15,95,224,.85);padding:3px 9px;border-radius:20px;backdrop-filter:blur(4px)}
.case-body{padding:18px 20px}
.case-tag{display:inline-block;background:var(--blue-light);color:var(--blue);font-size:12px;padding:2px 10px;border-radius:10px;margin-bottom:8px}
.case-body h3{font-size:16px;margin-bottom:6px}
.case-body p{font-size:13px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case-meta{display:flex;justify-content:space-between;margin-top:12px;font-size:12px;color:var(--text-3)}
.case-meta .c-star{color:#ffb800}

/* 服务保障 */
.guarantee-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.g-item{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:var(--radius);padding:26px 24px;text-align:center;transition:all .25s}
.g-item:hover{background:rgba(255,255,255,.14);transform:translateY(-4px)}
.g-item i{font-size:36px;font-style:normal;display:block;margin-bottom:12px}
.g-item h3{font-size:17px;margin-bottom:6px}
.g-item p{font-size:13px;color:#cfe0ff}

/* 预约表单 */
.section-book{background:linear-gradient(135deg,#f0f6ff,#e6efff)}
.book-inner{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center}
.book-text h2{font-size:32px;font-weight:800;margin-bottom:14px}
.book-text p{color:var(--text-2);font-size:15px;margin-bottom:18px}
.book-text p b{color:var(--orange)}
.book-points{list-style:none;margin-bottom:26px}
.book-points li{padding:6px 0;color:var(--text);font-size:14.5px}
.book-hotline{background:#fff;border-radius:var(--radius);padding:16px 24px;display:inline-block;box-shadow:var(--shadow)}
.book-hotline span{display:block;font-size:13px;color:var(--text-2)}
.book-hotline b{font-size:26px;color:var(--orange);letter-spacing:1px}
.book-form{background:#fff;border-radius:16px;padding:36px 34px;box-shadow:0 16px 48px rgba(15,95,224,.16)}
.book-form h3{text-align:center;font-size:22px;margin-bottom:24px;color:var(--blue)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;border:1.5px solid var(--border);border-radius:8px;padding:11px 14px;font-size:14.5px;font-family:inherit;transition:border .2s;background:#fbfcfe}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--blue);background:#fff}
.form-group textarea{resize:vertical}
.form-tip{text-align:center;font-size:12.5px;color:var(--text-3);margin-top:12px}
.file-tip{font-size:12.5px;color:var(--text-3);margin-top:6px}
.price-input{position:relative;display:flex;align-items:center}
.price-input .pi-symbol{position:absolute;left:14px;font-size:17px;font-weight:700;color:#f06a00;pointer-events:none}
.price-input input{padding-left:32px!important;padding-right:46px!important;font-weight:600;font-size:16px!important;color:#f06a00}
.price-input input::-webkit-outer-spin-button,
.price-input input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.price-input input[type=number]{-moz-appearance:textfield}
.price-input .pi-unit{position:absolute;right:14px;font-size:13.5px;color:var(--text-3);pointer-events:none}
.upload-box{border:1.6px dashed #c3d0e2;border-radius:10px;background:#fbfcfe;cursor:pointer;transition:all .2s;padding:18px 14px;text-align:center}
.upload-box:hover,.upload-box.dragover{border-color:var(--blue);background:#f2f7ff}
.upload-box input[type=file]{display:none}
.upload-box .ub-icon{display:block;font-size:22px;line-height:1;margin-bottom:6px}
.upload-box .ub-title{display:block;font-size:14px;font-weight:600;color:var(--text-1)}
.upload-box .ub-sub{display:block;font-size:12px;color:var(--text-3);margin-top:4px}
.form-group input[type=file]{padding:9px 14px;background:#fbfcfe}
.media-preview{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.media-preview .mp-item{position:relative;width:74px;height:74px;border-radius:8px;overflow:hidden;border:1px solid var(--border);background:#000}
.media-preview .mp-item img,.media-preview .mp-item video{width:100%;height:100%;object-fit:cover}
.media-preview .mp-item .mp-del{position:absolute;top:2px;right:2px;width:18px;height:18px;border-radius:50%;background:rgba(0,0,0,.6);color:#fff;border:none;font-size:11px;cursor:pointer;line-height:1}
.media-preview .mp-item .mp-type{position:absolute;left:3px;bottom:3px;background:rgba(0,0,0,.55);color:#fff;font-size:10px;padding:0 5px;border-radius:6px}
/* 后台媒体缩略图 */
.media-thumbs{display:flex;gap:6px;flex-wrap:wrap;max-width:160px}
.media-thumbs .mt-item{width:44px;height:44px;border-radius:6px;overflow:hidden;border:1px solid var(--border);background:#000;cursor:pointer;display:block}
.media-thumbs .mt-item img,.media-thumbs .mt-item video{width:100%;height:100%;object-fit:cover}
/* 媒体查看弹层 */
.media-modal{position:fixed;inset:0;background:rgba(0,0,0,.82);z-index:300;display:flex;align-items:center;justify-content:center;padding:30px}
.media-modal img,.media-modal video{max-width:92%;max-height:88%;border-radius:8px}
.media-modal .mm-close{position:absolute;top:18px;right:26px;color:#fff;font-size:34px;cursor:pointer;background:none;border:none}

/* ===== 在线客服聊天窗口 ===== */
.chat-widget{position:fixed;left:18px;bottom:80px;z-index:96}
.chat-fab{width:60px;height:60px;border-radius:50%;border:none;cursor:pointer;background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;font-size:22px;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(34,197,94,.4);position:relative;transition:transform .2s}
.chat-fab:hover{transform:scale(1.08)}
.chat-fab span{font-size:10px;margin-top:1px}
.chat-fab .chat-dot{position:absolute;top:2px;right:2px;width:12px;height:12px;border-radius:50%;background:#ef4444;border:2px solid #fff}
.chat-panel{position:absolute;left:0;bottom:72px;width:330px;height:430px;background:#fff;border-radius:14px;box-shadow:0 16px 48px rgba(0,0,0,.25);display:flex;flex-direction:column;overflow:hidden}
.chat-head{background:linear-gradient(135deg,var(--blue),#3b82f6);color:#fff;padding:12px 16px;display:flex;align-items:center;gap:10px}
.chat-head b{font-size:15px}
.chat-status{font-size:11.5px;color:#bbf7d0;flex:1}
.chat-close{background:none;border:none;color:#fff;font-size:22px;cursor:pointer;line-height:1}
.chat-msgs{flex:1;overflow-y:auto;padding:14px;background:#f5f7fa;display:flex;flex-direction:column;gap:10px}
.msg{display:flex}
.msg-bubble{max-width:78%;padding:9px 13px;border-radius:12px;font-size:13.5px;line-height:1.6;word-break:break-word}
.msg-admin .msg-bubble{background:#fff;border:1px solid var(--border);border-top-left-radius:4px;color:var(--text)}
.msg-user{justify-content:flex-end}
.msg-user .msg-bubble{background:var(--blue);color:#fff;border-top-right-radius:4px}
.msg .msg-time{font-size:10.5px;color:var(--text-3);margin-top:3px}
.chat-input{display:flex;gap:8px;padding:10px;border-top:1px solid var(--border);background:#fff}
.chat-input input{flex:1;border:1.5px solid var(--border);border-radius:18px;padding:9px 14px;font-size:13.5px;font-family:inherit;outline:none}
.chat-input input:focus{border-color:var(--blue)}
.chat-input button{background:var(--blue);color:#fff;border:none;border-radius:18px;padding:0 18px;font-size:13.5px;font-weight:600;cursor:pointer;font-family:inherit}
@media (max-width:640px){.chat-widget{left:12px;bottom:90px}.chat-panel{width:calc(100vw - 24px);height:380px}}

/* ===== 后台客服面板 ===== */
.chat-admin{display:grid;grid-template-columns:280px 1fr;gap:0;background:#fff;border-radius:12px;box-shadow:0 2px 10px rgba(0,0,0,.04);height:calc(100vh - 130px);overflow:hidden}
.chat-side{display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--border)}
.cs-toolbar{display:flex;justify-content:space-between;align-items:center;flex:0 0 auto;padding:11px 14px;border-bottom:1px solid var(--border);font-size:12.5px;color:var(--text-3)}
.cs-toolbar button{border:none;background:none;color:#ef4444;font-size:12.5px;cursor:pointer;font-family:inherit;padding:0}
.cs-toolbar button:hover{text-decoration:underline}
.chat-sessions{flex:1;min-height:0;overflow-y:auto}
.sess-item .s-time{float:right;font-size:11px;color:var(--text-3);font-weight:400}
.sess-item{padding:13px 16px;border-bottom:1px solid var(--border);cursor:pointer;position:relative}
.sess-item:hover{background:#f8fbff}
.sess-item.active{background:var(--blue-light)}
.sess-item b{font-size:14px;display:block}
.sess-item p{font-size:12px;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px;padding-right:18px}
.sess-del{position:absolute;right:10px;bottom:10px;width:20px;height:20px;border:none;border-radius:50%;background:transparent;color:#b6c2d1;font-size:16px;line-height:1;cursor:pointer;display:none;padding:0}
.sess-item:hover .sess-del{display:block}
.sess-del:hover{background:#fee2e2;color:#ef4444}
.sess-item .unread{position:absolute;top:12px;right:12px;background:#ef4444;color:#fff;font-size:11px;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 5px}
.chat-room{display:flex;flex-direction:column}
.chat-room-head{padding:12px 18px;border-bottom:1px solid var(--border);font-weight:600;font-size:14.5px;background:#fafbfc}
.chat-room-msgs{flex:1;overflow-y:auto;padding:16px;background:#f5f7fa;display:flex;flex-direction:column;gap:10px}
.chat-room-input{display:flex;gap:10px;padding:12px;border-top:1px solid var(--border)}
.chat-room-input input{flex:1;border:1.5px solid var(--border);border-radius:8px;padding:10px 14px;font-size:14px;font-family:inherit;outline:none}
.chat-room-input button{background:var(--blue);color:#fff;border:none;border-radius:8px;padding:0 22px;font-weight:600;cursor:pointer;font-family:inherit}
.chat-empty{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-3);font-size:14px}
.nav-badge{background:#ef4444;color:#fff;font-size:11px;min-width:18px;height:18px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;padding:0 5px;margin-left:6px;vertical-align:middle}
@media (max-width:900px){.chat-admin{grid-template-columns:1fr}.chat-side{max-height:220px;border-right:none;border-bottom:1px solid var(--border)}}

/* 页脚 */
.footer{background:#14273f;color:#b8c6d9;padding:52px 0 0}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:36px}
.footer-logo .logo-text{color:#fff}
.footer-col p{font-size:13.5px;margin:6px 0;line-height:1.8}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:14px}
.footer-col a{display:block;font-size:13.5px;color:#b8c6d9;margin:8px 0;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;font-size:13px}
.footer-bottom .container{display:flex;justify-content:space-between;align-items:center}
.admin-link{color:#5e7290;font-size:12px}
.admin-link:hover{color:#b8c6d9}

/* 浮动按钮 */
.float-btns{position:fixed;right:18px;bottom:80px;z-index:90;display:flex;flex-direction:column;gap:10px}
.float-btn{width:56px;height:56px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;font-size:18px;box-shadow:0 6px 18px rgba(0,0,0,.2);transition:transform .2s}
.float-btn span{font-size:11px;margin-top:1px}
.float-btn:hover{transform:scale(1.08)}
.float-call{background:var(--blue)}
.float-book{background:linear-gradient(135deg,var(--orange),var(--orange-dark))}

/* 新订单弹窗 */
.order-popup{position:fixed;left:18px;bottom:18px;z-index:95;background:#fff;border-radius:12px;box-shadow:0 10px 36px rgba(0,0,0,.18);padding:14px 20px;display:flex;align-items:center;gap:12px;max-width:330px;transform:translateY(140%);opacity:0;transition:all .45s cubic-bezier(.2,.9,.3,1.2);border-left:4px solid var(--orange)}
.order-popup.show{transform:translateY(0);opacity:1}
.order-popup .p-icon{width:38px;height:38px;border-radius:50%;background:#fff3e8;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.order-popup .p-text{font-size:13px;color:var(--text-2);line-height:1.5}
.order-popup .p-text b{color:var(--text)}
.order-popup .p-text .p-time{color:var(--text-3);font-size:12px}

/* Toast */
.toast{position:fixed;top:80px;left:50%;transform:translate(-50%,-20px);background:#fff;color:var(--text);padding:14px 28px;border-radius:10px;box-shadow:0 10px 36px rgba(0,0,0,.18);z-index:200;opacity:0;pointer-events:none;transition:all .3s;font-size:15px;font-weight:600;border-left:4px solid #22c55e}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.error{border-left-color:#ef4444}

/* 响应式 */
@media (max-width:992px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:32px}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .cases-grid{grid-template-columns:repeat(2,1fr)}
  .guarantee-grid{grid-template-columns:repeat(2,1fr)}
  .book-inner{grid-template-columns:1fr;gap:36px}
  .footer-inner{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .step-arrow{display:none}
}
@media (max-width:640px){
  .nav-toggle{display:block}
  .nav-links{position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 20px;gap:16px;box-shadow:0 10px 20px rgba(0,0,0,.08);display:none}
  .nav-links.open{display:flex}
  .hero h1{font-size:26px}
  .hero-card{left:10px;bottom:10px}
  .cases-grid{grid-template-columns:1fr}
  .guarantee-grid{grid-template-columns:1fr}
  .services-grid{grid-template-columns:1fr 1fr;gap:12px}
  .service-card{padding:18px 12px}
  .service-card p{min-height:0}
  .form-row{grid-template-columns:1fr}
  .book-form{padding:26px 20px}
  .sec-title{font-size:24px}
  .topbar-right{display:none}
  .footer-inner{grid-template-columns:1fr}
  .float-btns{bottom:20px}
  .section{padding:52px 0}
}

/* ===== 管理后台 ===== */
.admin-body{background:var(--bg);min-height:100vh}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0a48ad,#0f5fe0)}
.login-box{background:#fff;border-radius:16px;padding:44px 40px;width:380px;box-shadow:0 24px 60px rgba(0,0,0,.3);text-align:center}
.login-box h2{font-size:22px;margin:14px 0 6px;color:var(--blue)}
.login-box p{font-size:13px;color:var(--text-3);margin-bottom:24px}
.admin-layout{display:flex;min-height:100vh}
.poll-state{font-size:12.5px;color:#8a97a8;white-space:nowrap}
.poll-state.ok{color:#0ea472}
.poll-state.bad{color:#ef4444}
.btn-test{border:1px solid #d7e0ea;background:#fff;color:var(--blue);border-radius:7px;padding:7px 13px;font-size:13px;font-family:inherit;cursor:pointer}
.btn-test:hover{background:var(--blue-light)}
.admin-side{width:220px;background:#14273f;color:#b8c6d9;padding:24px 0;flex-shrink:0;display:flex;flex-direction:column}
.side-sound{margin-top:auto;padding:16px 14px 0}
.sound-btn{width:100%;border:none;border-radius:8px;padding:11px 8px;font-size:13px;font-family:inherit;cursor:pointer;color:#dbe6f5;background:#24405f;transition:background .2s}
.sound-btn:hover{background:#2d5178}
.sound-btn.on{background:#0ea472;color:#fff}
.admin-side .side-logo{display:flex;align-items:center;gap:10px;padding:0 22px 24px;border-bottom:1px solid rgba(255,255,255,.08);color:#fff;font-weight:700;font-size:17px}
.admin-side nav a{display:block;padding:14px 22px;font-size:14.5px;color:#b8c6d9;border-left:3px solid transparent;cursor:pointer;transition:all .2s}
.admin-side nav a:hover{color:#fff;background:rgba(255,255,255,.05)}
.admin-side nav a.active{color:#fff;background:rgba(15,95,224,.35);border-left-color:var(--orange)}
.admin-main{flex:1;padding:28px 32px;overflow-x:auto}
.admin-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.admin-head h1{font-size:22px}
.admin-head .h-right{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--text-2)}
.panel{display:none}
.panel.active{display:block}
.stat-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-bottom:26px}
.stat-card{background:#fff;border-radius:12px;padding:20px 22px;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.stat-card b{font-size:30px;color:var(--blue);display:block}
.stat-card span{font-size:13px;color:var(--text-2)}
.stat-card .stat-sub{display:block;font-size:12px;color:#97a3b3;font-style:normal;margin-top:4px}
.stat-card.visitors b{color:#0ea472}
.stat-card.orange b{color:var(--orange)}
.table-wrap{background:#fff;border-radius:12px;box-shadow:0 2px 10px rgba(0,0,0,.04);overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:900px}
th,td{padding:13px 14px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}
th{background:#f8fafc;color:var(--text-2);font-weight:600;font-size:13px}
tr:hover td{background:#f8fbff}
td .note-cell{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:middle}
.status-sel{border:1px solid var(--border);border-radius:6px;padding:4px 8px;font-size:12.5px;font-family:inherit;background:#fff}
.btn-sm{padding:5px 12px;border-radius:6px;border:none;cursor:pointer;font-size:12.5px;font-family:inherit}
.btn-del{background:#fee2e2;color:#dc2626}
.btn-del:hover{background:#fecaca}
.btn-export{background:var(--blue);color:#fff;padding:9px 18px;border-radius:8px;border:none;cursor:pointer;font-size:14px;font-weight:600;font-family:inherit}
.btn-export:hover{background:var(--blue-dark)}
.empty-tip{text-align:center;color:var(--text-3);padding:48px 0;font-size:14px}
.admin-form{background:#fff;border-radius:12px;padding:26px;box-shadow:0 2px 10px rgba(0,0,0,.04);margin-bottom:26px}
.admin-form h3{margin-bottom:18px;font-size:17px}
.admin-form .form-row{grid-template-columns:repeat(4,1fr)}
.case-admin-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case-admin-item{position:relative;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.case-admin-item img,.case-admin-item video{height:150px;width:100%;object-fit:cover;display:block;background:#0b1220}
.case-admin-item .ca-play{position:absolute;top:8px;left:8px;font-style:normal;font-size:11px;color:#fff;background:rgba(15,95,224,.85);padding:2px 8px;border-radius:20px}
.case-admin-item .ca-body{padding:14px 16px}
.case-admin-item h4{font-size:15px;margin-bottom:4px}
.case-admin-item p{font-size:12.5px;color:var(--text-2);margin-bottom:10px}
@media (max-width:900px){
  .admin-layout{flex-direction:column}
  .admin-side{width:100%;display:flex;flex-direction:row;overflow-x:auto;padding:0;align-items:center}
  .admin-side .side-logo{display:none}
  .admin-side nav{display:flex;width:100%}
  .side-sound{margin:0;padding:0 12px;flex:0 0 auto}
  .sound-btn{white-space:nowrap;padding:8px 12px;width:auto}
  .admin-side nav a{border-left:none;border-bottom:3px solid transparent;white-space:nowrap}
  .admin-side nav a.active{border-bottom-color:var(--orange)}
  .stat-cards{grid-template-columns:repeat(2,1fr)}
  .case-admin-grid{grid-template-columns:1fr}
  .admin-form .form-row{grid-template-columns:1fr 1fr}
  .admin-main{padding:18px 16px}
}