:root{
    --brand:#e8342c;
    --dark:#1b1b1b;
    --darker:#0b0b0b;
    --light:#f7f7f7;
    --card-dark:#2b2b2b;
}
html{scroll-behavior:smooth;}
body{
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
    background:var(--light);
    color:#222;
    -webkit-font-smoothing:antialiased;
}
.container-x{max-width:1230px;margin:0 auto;padding:0 15px;}
@media (min-width:1200px){
    .indent{padding-left:100px;}
}
.sec-label{font-size:16px;font-weight:700;letter-spacing:.5px;margin-bottom:22px;}
.sec-title{color:var(--brand);font-size:52px;font-weight:800;line-height:1.2;margin-bottom:26px;}
.sec-sub{font-size:17px;line-height:1.9;}
.deco{position:absolute;pointer-events:0;z-index:0;}
section{position:relative;overflow:hidden;}
section>.container-x{position:relative;z-index:1;}

/* ---------- 导航 ---------- */
.site-nav{position:absolute;top:0;left:0;right:0;z-index:10;padding:26px 0;}
.site-nav .logo{color:var(--brand);font-size:30px;font-weight:900;font-style:italic;letter-spacing:1px;text-decoration:none;}
.site-nav .nav-link{color:#fff;font-size:16px;padding:6px 0;margin-left:42px;}
.site-nav .nav-link:hover{color:var(--brand);}
.btn-works{background:var(--brand);color:#fff;font-size:15px;font-weight:600;padding:8px 20px;border-radius:2px;margin-left:42px;text-decoration:none;display:inline-block;}
.btn-works:hover{background:#c9241d;color:#fff;}

/* ---------- Hero ---------- */
.hero{background:var(--darker);min-height:940px;display:flex;align-items:center;overflow:hidden;}
.hero-title{color:#fff;font-size:88px;font-weight:900;line-height:1.18;letter-spacing:2px;}
.hero-sub{color:var(--brand);font-size:30px;font-weight:600;letter-spacing:6px;margin-top:34px;}

/* ---------- 红色横幅 ---------- */
.red-banner{background:var(--brand);padding:20px 0;position:sticky; top:0; z-index:1021; }
.red-banner .dot{width:34px;height:34px;border-radius:50%;background:#fff;position:relative;flex:0 0 auto;}
.red-banner .dot::after{content:"";position:absolute;inset:9px;border-radius:50%;background:var(--brand);}
.red-banner p{color:#fff;font-size:24px;font-weight:500;margin:0 0 0 22px;letter-spacing:1px;}
.btn-submit{background:#1c1c1c;color:#fff;font-size:17px;padding:10px 36px;border-radius:50px;text-decoration:none;flex:0 0 auto;}
.btn-submit:hover{background:#fff;color:var(--brand);}

/* ---------- 通用区块 ---------- */
.pad{padding:110px 0;}
.bg-light-x{background:var(--light);}
.bg-dark-x{background:var(--dark);color:#fff;}
.bg-dark-x .sec-sub{color:#c9c9c9;}

/* 步骤 / 灵感列表 */
.step-list{list-style:none;margin:56px 0 0;padding:0;max-width:600px;}
.step-list li{border-top:1px solid rgba(128,128,128,.35);padding:26px 0 26px;}
.step-list li:last-child{border-bottom:1px solid rgba(128,128,128,.35);}
.step-list .num{color:var(--brand);font-size:18px;font-weight:800;margin-right:14px;}
.step-list .name{font-size:20px;font-weight:700;}
.step-list .desc{font-size:15px;color:#8c8c8c;margin:10px 0 0 44px;}
.format-pill{display:inline-block;margin-top:44px;border:1px solid var(--brand);color:#141414;border-radius:50px;padding:8px 26px;font-size:15px;}

/* 列表切换 */
.list-switcher{position:relative;max-width:480px;}
.list-switcher .step-list{max-width:100%;}
.ls-nav{position:absolute;top:-45px;right:0;display:flex;gap:10px;z-index:2;}
.ls-arrow{width:36px;height:36px;border-radius:50%;border:1px solid #666;background:transparent;color:#222222;font-size:16px;display:flex;align-items:center;justify-content:center;transition:border-color .2s,color .2s;padding:0;}
.ls-arrow:hover{border-color:var(--brand);color:var(--brand);}
.bg-dark-x .step-list .name{color:#fff;}

/* 01 胶囊 */
.info-pill{display:inline-flex;align-items:center;background:#6f6f6f;color:#fff;border-radius:50px;padding:12px 30px;font-size:16px;margin-top:64px;}
.info-pill i{color:var(--brand);font-size:22px;margin-right:12px;}

/* 04 规格卡片 */
.spec-card{background:var(--card-dark);border:1px solid #4d4d4d;border-radius:14px;padding:34px 32px;flex:1;}
.spec-card .no{font-size:17px;font-weight:700;color:#fff;}
.spec-card .name{font-size:30px;font-weight:500;color:#fff;margin:26px 0 30px;}
.spec-card .row-x{display:flex;justify-content:space-between;border-top:1px solid #4a4a4a;padding:14px 0;font-size:15px;}
.spec-card .row-x .k{color:#9a9a9a;}
.spec-card .row-x .v{color:#fff;font-weight:700;}
.spec-note{color:var(--brand);font-size:14px;margin-top:26px;}

/* 05 奖品 */
.prize-collage .p1{width:100%;max-width:420px;}
.prize-collage .p2{width:48%;}
.prize-collage .p3{width:48%;}
.gray-card{background:#f0f0f0;border-radius:16px;padding:40px 42px;height:100%;}
.gray-card h3{font-size:24px;font-weight:800;margin-bottom:24px;}
.gray-card .txt{font-size:16px;line-height:2;color:#3d3d3d;}
.award-title{color:var(--brand);font-size:22px;font-weight:800;margin-bottom:28px;}
.award-title i{margin-right:10px;}
.award-row{display:flex;justify-content:space-between;align-items:center;padding:20px 0;border-bottom:1px solid #dcdcdc;}
.award-row:last-child{border-bottom:0;}
.award-row .top{color:var(--brand);font-size:20px;font-weight:800;}
.award-row .prize{font-size:17px;color:#333;}
.award-row .prize-note{display:block;font-size:12px;color:#999;font-weight:400;margin-top:4px;text-align:right;}

/* 注意事项 */
.notice{font-size:15px;line-height:2.05;color:#bdbdbd;}
.notice strong{color:var(--brand);font-size:20px;display:block;margin-bottom:22px;}

/* 06 获奖名单 */
.win-title{color:var(--brand);font-size:52px;font-weight:800;line-height:1.25;}
.win-note{font-size:15px;color:#777;line-height:1.9;max-width:400px;}
.win-hr{border:0;border-top:3px solid #222;margin:46px 0 60px;}
.win-count{font-size:44px;font-weight:800;color:#222;margin-bottom:70px;}
.group-head{display:flex;align-items:center;border-bottom:1px solid #d8d8d8;padding-bottom:22px;margin-bottom:54px;}
.group-head .badge-no{width:38px;height:38px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;font-weight:800;background:#222;}
.group-head .badge-no.red{background:var(--brand);}
.group-head .top-txt{font-size:38px;font-weight:800;color:#222;margin-left:16px;}
.group-head .prize-txt{margin-left:auto;font-size:18px;color:#333;}
.work-card{background:#fff;border:1px solid #e6e6e6;width:370px;max-width:100%;}
.work-card .thumb{position:relative;border-bottom:3px solid var(--brand);}
.work-card .thumb img{width:100%;display:block;}
.work-card .tag{position:absolute;top:0;left:50%;transform:translateX(-50%);background:#f2c200;color:#222;font-size:14px;font-weight:700;padding:5px 20px;white-space:nowrap;}
.work-card .body{padding:26px 24px 20px;}
.work-card .t{font-size:20px;font-weight:800;color:#111;}
.work-card .a{font-size:15px;color:#8a8a8a;margin-top:8px;}
.work-card .dl{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #e6e6e6;margin-top:22px;padding-top:18px;}
.work-card .dl span{color:var(--brand);font-size:15px;}
.work-card .dl i{color:var(--brand);font-size:20px;}

/* 07 领奖说明 */
.claim-title{color:#fff;font-size:52px;font-weight:800;line-height:1.25;}
.claim-title em{color:var(--brand);font-style:normal;}
.claim-sub{color:#a5a5a5;font-size:16px;line-height:1.9;margin-top:34px;max-width:340px;}
.claim-grid{border:1px solid #454545;}
.claim-cell{border:1px solid #454545;padding:38px 36px;margin:-0.5px;}
.claim-cell i{color:var(--brand);font-size:30px;}
.claim-cell h4{color:#fff;font-size:22px;font-weight:700;margin:20px 0 14px;}
.claim-cell p{color:#9d9d9d;font-size:15px;line-height:1.9;margin:0;}
.footer-note{color:#8a8a8a;font-size:14px;text-align:right;margin-top:56px;}

/* ---------- 装饰图形 ---------- */
.tri{ width:0;height:0;border-style:solid;}
.tri-right{border-width:110px 0 110px 100px;border-color:transparent transparent transparent rgb(232 52 44 / 50%);}
.tri-left-down{border-width:0 130px 130px 0;border-color:transparent rgb(232 52 44 / 50%) transparent transparent;}
.tri-down{border-width:130px 130px 0 0;border-color:rgb(232 52 44 / 50%) transparent transparent transparent;}
.circle-deco{border-radius:50%;background:rgb(232 52 44 / 50%);}
.tri-down2 {
    border-width: 130px 180px 0 130px;  /* 上 右 下 左 */
    border-color: rgb(232 52 44 / 50%) transparent transparent transparent;
}


/* ---------- 投稿弹窗 ---------- */
.submit-modal .modal-content{border-radius:14px;border:0;}
.submit-modal .modal-header{border-bottom:1px solid #eee;padding:22px 28px;}
.submit-modal .modal-title{font-size:22px;font-weight:800;}
.submit-modal .modal-body{padding:26px 28px;}
.submit-modal .modal-footer{border-top:0;justify-content:center;padding:0 28px 26px;}
.form-label-x{font-size:15px;font-weight:700;margin-bottom:8px;}
.form-label-x .req{color:var(--brand);}
.upload-tip{font-size:13px;color:#999;margin:6px 0 14px;}
/* fileinput 细节微调 */
.submit-modal .file-input .file-preview{border-radius:10px;border:1px dashed #c9c9c9;}
.submit-modal .file-input .file-drop-zone{min-height:120px;}
.submit-modal .kv-fileinput-caption{font-size:13px;}
.btn-submit-work{background:var(--brand);color:#fff;font-size:17px;font-weight:700;border:0;border-radius:8px;padding:12px 64px;}
.btn-submit-work:hover{background:#c9241d;color:#fff;}
.btn-preview-work{background:#fff;color:#333;font-size:17px;font-weight:700;border:1px solid #ccc;border-radius:8px;padding:12px 40px;}
.btn-preview-work:hover{border-color:var(--brand);color:var(--brand);}
/* 上传进度条 */
.upload-progress{height:6px;border-radius:4px;margin-top:8px;background:#eee;}
.upload-progress .progress-bar{background:var(--brand);border-radius:4px;transition:width .15s;}
.upload-progress.done .progress-bar{background:#28a745;}
/* 提交上传遮罩 */
.upload-overlay{position:fixed;inset:0;z-index:2000;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;}
.upload-status{background:#fff;border-radius:12px;padding:40px 64px;text-align:center;min-width:240px;}
.upload-status .spinner-border{width:3rem;height:3rem;color:var(--brand);}
.upload-status .upload-ok{font-size:48px;color:#28a745;}
.upload-status p{margin:16px 0 0;font-size:16px;font-weight:600;color:#333;}
.btn-submit-work{background:var(--brand);color:#fff;font-size:17px;font-weight:700;border:0;border-radius:8px;padding:12px 64px;}
.btn-submit-work:hover{background:#c9241d;color:#fff;}
.btn-preview-work{background:#fff;color:#333;font-size:17px;font-weight:700;border:1px solid #ccc;border-radius:8px;padding:12px 40px;}
.btn-preview-work:hover{border-color:var(--brand);color:var(--brand);}
/* 三屏联动预览 */
.case-preview{position:relative;background:#000;}
.case-preview>img.case-bg{width:100%;display:block;}
.pv-screen{position:absolute;object-fit:cover;z-index:1;}
.submit-legal{font-size:12px;color:#999;text-align:center;margin-top:14px;}

@media (max-width:991.98px){
    .hero{min-height:auto;padding:130px 0 70px;}
    .hero-title{font-size:44px;}
    .hero-sub{font-size:18px;letter-spacing:3px;}
    .sec-title,.win-title,.claim-title{font-size:34px;white-space:normal !important;}
    .red-banner p{font-size:16px;}
    .pad{padding:70px 0;}
    .step-list{max-width:100%;}
    .site-nav .nav-link{margin-left:18px;font-size:14px;}
    .btn-works{margin-left:18px;}
    .win-count{font-size:30px;}
    .group-head .top-txt{font-size:26px;}
    .group-head .prize-txt{font-size:14px;}
    .deco{display:none;
    }
}