/* TVbox ttvbox.cn · 立方放映间·光影魔盒 · 浅色hero+深色区块节奏 */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --ink:#15161a;
  --ink2:#1e2026;
  --ink3:#2a2d35;
  --paper:#f7f5ef;
  --tint:#efe9dc;
  --teal:#0ea5a0;
  --pink:#ff6b8b;
  --cream:#efe9db;
  --txt:#1d1e24;
  --mut:#7b7568;
  --mut-d:#c9c4b8;
  --line:#e4ddcd;
}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",-apple-system,"Helvetica Neue",sans-serif;color:var(--txt);background:var(--paper);line-height:1.7;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
h2{font-size:32px;line-height:1.3;letter-spacing:.5px}
.sec-kick{font-size:13px;font-weight:700;letter-spacing:2.5px;color:var(--teal);margin-bottom:10px;text-transform:uppercase}
.sec-p{color:var(--mut);margin:8px 0 30px}
section{padding:78px 0}
.io{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.io.in{opacity:1;transform:none}

/* ===== 等距立方体三面通用件 ===== */
.cc-t,.cc-l,.cc-r{position:absolute;inset:0;display:block}
.cc-t{background:var(--teal);clip-path:polygon(50% 0,100% 26%,50% 52%,0 26%)}
.cc-l{background:var(--pink);clip-path:polygon(0 26%,50% 52%,50% 100%,0 74%)}
.cc-r{background:var(--cream);clip-path:polygon(50% 52%,100% 26%,100% 74%,50% 100%)}

/* ===== 头部 ===== */
.site-head{position:sticky;top:0;z-index:60;background:rgba(21,22,26,.94);backdrop-filter:blur(10px);border-bottom:2px solid var(--teal)}
.head-in{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:#fff}
.brand img{border-radius:8px}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{color:var(--mut-d);font-size:14.5px;padding:6px 12px;border-radius:999px;transition:.25s}
.nav a:hover{color:#fff}
.nav a.on{color:#fff;background:var(--teal)}
.head-get{background:var(--pink);color:#fff;font-weight:700;font-size:14px;padding:9px 20px;border-radius:999px;transition:.25s;white-space:nowrap}
.head-get:hover{background:var(--teal)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{width:22px;height:2px;background:#fff;border-radius:2px}

/* ===== 01 hero 浅色 ===== */
.hero{background:radial-gradient(860px 420px at 92% -10%,rgba(14,165,160,.20),transparent 60%),radial-gradient(680px 400px at -8% 108%,rgba(255,107,139,.20),transparent 60%),var(--paper);padding:96px 0 100px;border-bottom:4px solid var(--teal)}
.hero-in{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero-kick{font-size:13px;font-weight:700;letter-spacing:3px;color:var(--teal);margin-bottom:14px}
.hero h1{font-size:56px;line-height:1.1;letter-spacing:1px;color:var(--ink)}
.hero-sub{font-size:21px;font-weight:700;margin:14px 0 12px;color:var(--ink)}
.hero-sub::after{content:"";display:block;width:56px;height:4px;background:var(--pink);border-radius:2px;margin-top:12px}
.hero-desc{color:var(--mut);font-size:15px;max-width:480px}
.hero-chips{display:flex;gap:12px;margin:24px 0 28px;flex-wrap:wrap}
.chip{font-size:13px;font-weight:700;padding:8px 16px;border-radius:999px}
.chip-a{background:var(--teal);color:#fff}
.chip-b{background:#fff;color:var(--pink);border:1.5px solid var(--pink)}
.hero-acts{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;font-weight:700;font-size:15.5px;padding:13px 30px;border-radius:999px;transition:.25s}
.btn-main{background:var(--teal);color:#fff}
.btn-main:hover{background:var(--pink);transform:translateY(-2px)}
.btn-ghost{border:1.5px solid rgba(21,22,26,.35);color:var(--ink)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal)}

/* 立方魔盒舞台 */
.cubestage{position:relative;background:#fff;border:3px solid var(--ink);border-radius:22px;padding:16px;box-shadow:14px 14px 0 rgba(14,165,160,.16)}
.cs-main{border-radius:12px;overflow:hidden;border:2px solid var(--teal)}
.cs-mini{position:absolute;right:-14px;bottom:-28px;width:42%;border:2px solid var(--pink);border-radius:12px;overflow:hidden;transform:rotate(4deg);background:#fff}
.cs-tag{position:absolute;left:26px;bottom:26px;background:var(--pink);color:#fff;font-size:12.5px;font-weight:700;padding:7px 14px;border-radius:999px;letter-spacing:1px}
.cs-cube{position:absolute;display:block;z-index:2;animation:ocFloat 6s ease-in-out infinite}
.cs-c1{width:74px;height:74px;top:-34px;right:9%}
.cs-c2{width:48px;height:48px;left:-20px;bottom:24%;animation-duration:7.5s}
.cs-c3{width:34px;height:34px;top:30%;left:-14px;animation-duration:5s}
@keyframes ocFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ===== 02 盒格细线格栅 ===== */
.sec-chans{background:#fff;border-bottom:4px solid var(--pink)}
.chans{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:1px;background:var(--ink);border:1px solid var(--ink)}
.chan{position:relative;display:flex;flex-direction:column;gap:6px;background:var(--paper);padding:26px 22px 22px;min-height:128px;transition:.25s}
.chan:hover{background:#fff}
.chan b{font-size:18px}
.chan span{font-size:13.5px;color:var(--mut)}
.chan em{position:absolute;top:12px;right:14px;font-style:normal;font-size:11px;font-weight:700;letter-spacing:2px;color:var(--mut)}
.ch-big{grid-row:span 2;background:var(--teal);color:#fff;justify-content:flex-end;min-height:260px}
.ch-big span{color:rgba(255,255,255,.85)}
.ch-big em{color:rgba(255,255,255,.75)}
.ch-pk{background:var(--pink);color:#fff}
.ch-pk span{color:rgba(255,255,255,.88)}
.ch-pk em{color:rgba(255,255,255,.75)}

/* ===== 03 开盒榜 ===== */
.sec-rank{background:var(--ink);color:#fff}
.sec-rank .sec-kick{color:#3ed6cf}
.sec-rank .sec-p{color:var(--mut-d)}
.rk{display:grid;grid-template-columns:.92fr 1.18fr .9fr;gap:26px;align-items:stretch}
.rk-top{position:relative;background:var(--ink2);border:2px solid var(--teal);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:10px}
.rk-pic{border-radius:10px;overflow:hidden;width:62%;border:1px solid rgba(255,255,255,.16)}
.rk-no1{position:absolute;top:14px;right:16px;font-size:30px;font-weight:900;letter-spacing:1px;color:transparent;-webkit-text-stroke:1.5px var(--teal)}
.rk-seal{align-self:flex-start;background:var(--pink);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:4px;letter-spacing:2px}
.rk-info b{font-size:19px}
.rk-info p{font-size:13px;color:var(--mut-d)}
.rk-info em{font-style:normal;color:#3ed6cf;font-weight:800;font-size:17px}
.rk-why{font-size:13px;color:var(--mut-d);border-top:1px dashed rgba(255,255,255,.16);padding-top:10px}
.rk-shot{align-self:center;border:2px solid var(--pink);border-radius:12px;overflow:hidden}
.rk-list{display:flex;flex-direction:column;gap:10px}
.rk-list li{display:grid;grid-template-columns:34px 1fr auto auto;gap:10px;align-items:center;background:var(--ink2);border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:12px 14px;font-size:13.5px}
.rk-list i{font-style:normal;font-weight:900;font-size:16px;color:#3ed6cf}
.rk-list li:nth-child(even) i{color:var(--pink)}
.rk-list span{color:var(--mut-d);font-size:12.5px}
.rk-list em{font-style:normal;font-weight:800;color:#fff}

/* ===== 04 数字绸带 ===== */
.ribbon{background:var(--teal);color:#fff;padding:38px 0}
.rib-in{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rib-i{text-align:center;border-right:1px dashed rgba(255,255,255,.4);padding:6px 10px}
.rib-i:last-child{border-right:0}
.rib-i b{display:block;font-size:34px;font-weight:900;letter-spacing:1px}
.rib-i span{font-size:13px;opacity:.92}

/* ===== 05 盒内分区 ===== */
.sec-zones{background:var(--tint)}
.sec-zones .sec-kick{color:var(--pink)}
.zones{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:22px}
.zone{background:#fff;border:1px solid var(--line);border-left:5px solid var(--teal);border-radius:0 12px 12px 0;padding:20px 22px}
.zone:nth-child(2),.zone:nth-child(3){border-left-color:var(--pink)}
.zone b{font-size:17px}
.zone p{font-size:13.5px;color:var(--mut);margin-top:6px}
.z-new{display:grid;grid-template-columns:1fr 1.15fr;gap:26px;align-items:center;background:var(--ink);color:#fff;border-radius:16px;border-left:6px solid var(--pink);padding:26px 28px}
.z-new-txt b{font-size:19px}
.z-new-txt p{color:var(--mut-d);font-size:13.5px;margin-top:8px}
.z-new-pic{border-radius:10px;overflow:hidden;border:2px solid var(--teal)}

/* ===== 06 精选专题 ===== */
.sec-topics{background:#fff}
.tps-wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:26px;align-items:start}
.tps{display:flex;flex-direction:column;gap:16px}
.tp{display:grid;grid-template-columns:118px 1fr;gap:18px;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:16px;align-items:center;transition:.25s}
.tp:hover{border-color:var(--teal)}
.tp figure{border-radius:10px;overflow:hidden}
.tp figure img{width:118px;height:152px;object-fit:cover}
.tp-tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:1px;padding:4px 10px;border-radius:4px;color:#fff;margin-bottom:6px}
.tag-a{background:var(--teal)}
.tag-b{background:var(--pink)}
.tp-txt b{font-size:17px}
.tp-txt p{font-size:13.5px;color:var(--mut);margin-top:4px}
.tps-sticky{position:sticky;top:96px;border:2px solid var(--teal);border-radius:14px;overflow:hidden}
.tps-sticky span{display:block;background:var(--ink);color:#fff;font-size:13px;font-weight:700;letter-spacing:1px;padding:12px 16px}

/* ===== 07 应用画面长卷 ===== */
.sec-shots{background:var(--ink);color:#fff}
.sec-shots .sec-kick{color:#3ed6cf}
.sec-shots .sec-p{color:var(--mut-d)}
.reel{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rl{border-radius:12px;overflow:hidden;background:var(--ink2)}
.rl-bar{display:flex;justify-content:space-between;align-items:center;padding:11px 14px;font-size:12px;letter-spacing:1px}
.rl-bar span{font-weight:800;color:#3ed6cf}
.rl-b .rl-bar span{color:var(--pink)}
.rl-bar em{font-style:normal;color:var(--mut-d)}
.rl-f{aspect-ratio:16/10;overflow:hidden}
.rl-f img{width:100%;height:100%;object-fit:cover}
.rl-a{border-bottom:3px solid var(--teal)}
.rl-b{border-bottom:3px solid var(--pink)}

/* ===== 08 功能四格 ===== */
.sec-funcs{background:var(--tint)}
.sec-funcs .sec-kick{color:var(--pink)}
.funcs{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.fn-i{background:#fff;border:1px solid var(--line);border-top:4px solid var(--teal);border-radius:0 0 12px 12px;padding:22px 20px}
.fn-b{border-top-color:var(--pink)}
.fn-i b{font-size:16.5px}
.fn-i p{font-size:13.5px;color:var(--mut);margin-top:6px}

/* ===== 09 开箱装填 ===== */
.sec-guide{background:#fff;border-top:4px solid var(--teal)}
.cubeload{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.cl-box{background:var(--paper);border:1px solid var(--line);border-top:6px solid var(--teal);border-radius:0 0 14px 14px;padding:26px 18px 22px;text-align:center;transition:.25s}
.cl-box:nth-child(even){border-top-color:var(--pink)}
.cl-box:hover{transform:translateY(-4px)}
.cl-cube{display:block;position:relative;width:46px;height:46px;margin:0 auto 14px;transition:.25s}
.cl-box:hover .cl-cube{transform:translateY(-4px)}
.cl-no{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:2px;color:#fff;background:var(--teal);padding:4px 10px;border-radius:4px;margin-bottom:10px}
.cl-box:nth-child(even) .cl-no{background:var(--pink)}
.cl-box b{display:block;font-size:16.5px;margin-bottom:6px}
.cl-box p{font-size:13.5px;color:var(--mut);text-align:left}

/* ===== 10 盲盒问答 ===== */
.sec-faq{background:var(--tint)}
.sec-faq .sec-kick{color:var(--pink)}
.blindbox{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.bb-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 20px 16px;transition:.25s}
.bb-card:hover{transform:translateY(-4px)}
.bb-lid{display:flex;justify-content:space-between;align-items:center;margin:0 -20px 14px;padding:9px 16px;color:#fff;transition:.25s}
.bb-card:hover .bb-lid{transform:translateY(-3px)}
.bb-a{background:var(--teal)}
.bb-b{background:var(--pink)}
.bb-lid i{width:34px;height:12px;border:2px solid rgba(255,255,255,.85);border-bottom:0;border-radius:8px 8px 0 0;margin-top:-9px;background:transparent}
.bb-lid span{font-size:10.5px;font-weight:800;letter-spacing:2px;border:1.5px solid rgba(255,255,255,.85);border-radius:4px;padding:2px 7px}
.bb-q{display:block;font-size:15.5px;margin-bottom:8px}
.bb-txt{font-size:13.5px;color:var(--mut)}
.bb-pull{display:block;position:relative;border-top:1px dashed var(--line);margin-top:14px;height:10px}
.bb-pull::after{content:"";position:absolute;left:50%;top:-8px;width:14px;height:14px;margin-left:-7px;border:2px solid var(--line);border-radius:50%;background:#fff}

/* ===== 11 盒面贴纸留言 ===== */
.sec-notes{background:#fff}
.boxnote{display:grid;grid-template-columns:1fr 1fr;gap:26px 24px}
.bn{position:relative;background:#fffdf6;border:1.5px dashed var(--teal);border-radius:18px;padding:20px 20px 14px 58px;transition:.25s}
.bn:nth-child(even){border-color:var(--pink)}
.bn-neg{transform:rotate(-1.1deg)}
.bn-pos{transform:rotate(1deg)}
.bn:hover{transform:rotate(0) translateY(-3px)}
.bn-cube{position:absolute;left:18px;top:20px;width:26px;height:26px;display:block}
.bn header{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px}
.bn header b{font-size:15.5px}
.bn-star{font-style:normal;color:var(--pink);font-size:13px;letter-spacing:1px;white-space:nowrap}
.bn>p{font-size:14px}
.bn-time{display:block;text-align:right;font-size:12px;color:var(--mut);margin-top:12px}

/* ===== 12 开盒取映 ===== */
.sec-get{background:var(--ink);padding:88px 0}
.sec-get .sec-kick{color:#3ed6cf}
.opencube{max-width:640px;margin:0 auto;background:var(--ink2);border:2px solid var(--teal);border-radius:20px;text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.35);padding-bottom:0;overflow:hidden}
.oc-stage{position:relative;width:150px;height:168px;margin:40px auto 14px;animation:ocFloat 6s ease-in-out infinite}
.oc-cube{position:absolute;inset:0;display:block}
.oc-cube .cc-t{transform:translateY(-10px);z-index:2}
.oc-cube .cc-l,.oc-cube .cc-r{z-index:1}
.oc-gap{position:absolute;inset:0;display:block;background:#000;opacity:.5;clip-path:polygon(50% 2%,100% 28%,50% 54%,0 28%)}
.oc-face{position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);z-index:3;background:#fff;border-radius:14px;padding:8px;box-shadow:0 10px 22px rgba(0,0,0,.4)}
.oc-face img{border-radius:10px}
.oc-name{font-size:24px;color:#fff;letter-spacing:2px}
.oc-rows{margin:20px auto 26px;max-width:420px;border-top:1px dashed rgba(255,255,255,.2)}
.oc-rows span{display:flex;justify-content:space-between;padding:11px 8px;border-bottom:1px dashed rgba(255,255,255,.2);font-size:14px}
.oc-rows i{font-style:normal;color:var(--mut-d)}
.oc-rows b{color:#fff}
.oc-btn{margin-bottom:22px}
.oc-note{border-top:2px dashed rgba(255,255,255,.22);margin:0;padding:16px;font-size:13px;color:var(--mut-d);letter-spacing:1px}

/* ===== 页脚 ===== */
.site-foot{background:var(--ink);color:var(--mut-d);border-top:2px solid var(--teal);padding:56px 0 0}
.foot-in{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;padding-bottom:40px}
.ft-brand .brand{margin-bottom:12px}
.ft-brand p{font-size:13.5px;max-width:280px}
.ft-col b{display:block;color:#fff;font-size:15px;margin-bottom:14px}
.ft-col a{display:block;font-size:13.5px;padding:4px 0;transition:.2s}
.ft-col a:hover{color:var(--teal)}
.foot-icp{border-top:1px solid rgba(255,255,255,.1);padding:18px 20px 22px;text-align:center;font-size:12.5px}

/* ===== 回顶与悬浮投诉 ===== */
.backtop{position:fixed;right:24px;bottom:24px;z-index:70;width:44px;height:44px;border-radius:50%;border:0;background:var(--ink);color:#fff;font-size:18px;cursor:pointer;opacity:0;pointer-events:none;transition:.3s}
.backtop.show{opacity:.9;pointer-events:auto}
.backtop:hover{background:var(--teal)}

/* ===== 响应式 ===== */
@media(max-width:960px){
  .hero-in{grid-template-columns:1fr;gap:60px}
  .chans{grid-template-columns:1fr 1fr}
  .ch-big{grid-row:span 1;min-height:150px}
  .rk{grid-template-columns:1fr}
  .rk-pic{width:44%}
  .tps-wrap{grid-template-columns:1fr}
  .tps-sticky{position:static}
  .reel{grid-template-columns:repeat(2,1fr)}
  .funcs{grid-template-columns:1fr 1fr}
  .cubeload{grid-template-columns:1fr 1fr}
  .blindbox{grid-template-columns:1fr}
  .boxnote{grid-template-columns:1fr}
  .z-new{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  section{padding:56px 0}
  h2{font-size:25px}
  .hero{padding:64px 0 76px}
  .hero h1{font-size:40px}
  .hero-sub{font-size:18px}
  .nav{position:fixed;top:64px;right:0;left:0;background:var(--ink2);flex-direction:column;padding:12px 20px 18px;display:none;border-bottom:2px solid var(--teal)}
  .nav.open{display:flex}
  .nav-toggle{display:flex}
  .head-get{margin-left:auto}
  .cubestage{padding:12px;box-shadow:8px 8px 0 rgba(14,165,160,.16)}
  .cs-mini{right:-4px;bottom:-22px}
  .cs-c1{width:56px;height:56px;top:-26px}
  .cs-c2{width:38px;height:38px;left:-10px}
  .cs-c3{display:none}
  .rib-in{grid-template-columns:1fr 1fr;gap:6px}
  .rib-i:nth-child(2){border-right:0}
  .reel{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;padding-bottom:8px}
  .rl{flex:0 0 82%;scroll-snap-align:center}
  .cubeload{grid-template-columns:1fr}
  .funcs{grid-template-columns:1fr}
  .zones{grid-template-columns:1fr}
  .bn-neg,.bn-pos{transform:none}
  .backtop{right:18px;bottom:24px;width:40px;height:40px}
  .foot-in{grid-template-columns:1fr;gap:26px}
}