/* OPEN-VID：仅首页加载，关于页沿用 v3。 */
body{background:#090909}
.nav{background:linear-gradient(180deg,rgba(0,0,0,.64),rgba(0,0,0,.03));color:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}
.nav .pill{background:transparent;color:#fff;border-color:#ffffff66}
.hero{padding:0;height:100svh;min-height:820px;color:#fff;background:#090909}
.hero>.glow{display:none}
.hero>.wrap{width:100%;height:100%;position:relative}
.hero .top{position:absolute;top:112px;left:75px;right:75px;z-index:4;margin:0;pointer-events:none}
.hero .top .k,.hero .top .lead{color:#ffffffb3}
.hero .top .lead{margin-right:140px}
.frame{position:absolute;inset:0;height:100%;border-radius:0;background:#090909}
.frame .img{background:#090909;transform:none}
.frame .img.open{animation:see 1.8s cubic-bezier(.6,.05,.2,1) .2s both}
.frame video{width:100%;height:100%;object-fit:cover;object-position:center;display:block}
.frame .shade{pointer-events:none;background:linear-gradient(180deg,rgba(0,0,0,.22),rgba(0,0,0,.02) 28%,rgba(0,0,0,.38) 60%,rgba(0,0,0,.9)),linear-gradient(90deg,rgba(0,0,0,.46),transparent 78%)}
.beam{z-index:2;animation-duration:1.15s}
.copy{left:75px;bottom:252px;animation-duration:.85s;animation-delay:1.1s}
.copy .brand{font-size:92px}
.copy .vis em.it{font-size:60px}
.copy .lead{font-size:19px}
.glass{right:75px;bottom:254px;width:286px;padding:20px 24px;background:rgba(12,12,12,.32);color:#fff;border:1px solid #ffffff40;box-shadow:none;animation-duration:.8s;animation-delay:1.4s}
.glass .k,.glass li,.glass li.ai{color:#fff}
.glass .mk::before{background:#ffffff88}
.gates{position:absolute;z-index:4;bottom:60px;left:75px;right:75px;gap:24px;margin:0}
.gate{padding:22px 0;border:0;border-top:1px solid #ffffff66;border-radius:0;background:transparent;color:#fff;gap:16px}
.gate .n{font-size:24px;color:var(--lime)}
.gate .lit,.gate p{color:#ffffffb3}
.gate b{font-size:24px}
.gate .ar{width:34px;height:34px;margin-right:8px}
.gate:hover{background:transparent;color:var(--lime)}
.hint{position:absolute;z-index:4;bottom:14px;left:0;right:0;margin:0;color:#ffffff88;font-size:10px;letter-spacing:.18em}
.hint i{display:none}
.motion-toggle{position:absolute;right:75px;top:114px;z-index:5;background:transparent;color:#ffffffb3;border:1px solid #ffffff55;border-radius:30px;padding:6px 12px;font:12px var(--font);cursor:pointer}
a:focus-visible,button:focus-visible{outline:2px solid var(--lime);outline-offset:5px}
.foot{background:#fff}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.hero .top{left:32px;right:32px}.copy{left:32px}.copy .brand{font-size:70px}.glass{right:32px;width:246px}.gates{left:32px;right:32px}.gate p{font-size:12px}.motion-toggle{right:32px}.nav .wrap{gap:20px}.menu{gap:20px}}
@media(max-width:760px){.hero{height:auto;min-height:100svh;padding-bottom:28px}.hero>.wrap{display:flex;flex-direction:column;padding:150px 24px 0}.nav .wrap{width:calc(100% - 48px)}.nav .brand{font-size:18px}.menu{display:none}.nav .pill{margin-left:auto}.hero .top{top:96px;left:24px;right:24px}.hero .top .lead{display:none}.motion-toggle{top:96px;right:24px}.frame{position:absolute}.copy{position:relative;left:auto;bottom:auto;margin:90px 0 40px}.copy .brand{font-size:clamp(32px,7.7vw,56px)}.copy .vis em.it{font-size:44px}.copy .lead{font-size:16px}.glass{display:none}.gates{position:relative;bottom:auto;left:auto;right:auto;grid-template-columns:1fr;gap:0;margin:0 0 22px}.gate{padding:16px 0}.gate b{font-size:20px}.gate p{font-size:12px}.hint{bottom:8px}.foot .wrap{width:calc(100% - 48px);flex-direction:column;gap:24px}.foot nav{flex-wrap:wrap;justify-content:center;gap:18px}}

/* OPEN-VID-V2：入口与服务卡共用磨砂表面。 */
.glass,.gate{background:rgba(12,12,12,.32);border:1px solid #ffffff40;border-radius:20px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:none}
.gate{padding:20px 24px;gap:12px;transition:background .3s,border-color .3s}
.gate .n{font-size:18px;line-height:1.3}
.gate .lit{font-size:11px;letter-spacing:.08em}
.gate b{font-size:18px;margin-top:2px}
.gate p{font-size:14px;line-height:1.6}
.gate .ar{width:28px;height:28px;margin:0 0 0 auto;flex:none}
.gate:hover{background:rgba(12,12,12,.48);border-color:#ffffff80;color:#fff}
.gate:hover .lit,.gate:hover p{color:#ffffffb3}
.partners{background:#fff;color:var(--ink);padding:100px 0 110px}
.partners-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:56px;gap:24px}
.partners .h2{margin-top:14px;font-size:44px}
.partners .h2 span{display:block;font-weight:400;font-size:20px;margin-top:18px}
.partners-mark{display:grid;place-items:center;width:64px;height:64px;border-radius:50%;background:var(--lime);font-size:32px}
.partners-label{font:500 14px "HS Sans";margin:36px 0 18px;color:var(--sub)}
.client-grid,.partner-grid{list-style:none;display:grid;gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.client-grid{grid-template-columns:repeat(4,1fr)}
.partner-grid{grid-template-columns:repeat(3,1fr)}
.client-grid li,.partner-grid li{display:flex;align-items:center;justify-content:center;min-height:108px;padding:24px;text-align:center;border-bottom:1px solid var(--line);border-right:1px solid var(--line);font:500 20px/1.6 "HS Sans"}
.partner-grid li{font-size:16px}
@media(max-width:760px){.gates{gap:12px}.gate{padding:18px 20px}.gate b{font-size:18px}.gate p{font-size:14px}.partners{padding:64px 0}.partners>.wrap{width:calc(100% - 48px)}.partners-head{margin-bottom:32px;align-items:flex-start}.partners .h2{font-size:28px}.partners .h2 span{font-size:16px}.partners-mark{width:40px;height:40px;font-size:24px;flex:none;margin-top:30px}.client-grid,.partner-grid{grid-template-columns:repeat(2,1fr)}.client-grid li,.partner-grid li{min-height:88px;padding:18px 12px;font-size:16px}.partner-grid li{font-size:13px}}

/* OPEN-VID-V3：三个入口共用一块玻璃，仅在内部以细线分栏。 */
.gates{gap:0;background:rgba(12,12,12,.32);border:1px solid #ffffff40;border-radius:20px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);overflow:hidden}
.gate{min-width:0;background:transparent;border:0;border-radius:0;backdrop-filter:none;-webkit-backdrop-filter:none}
.gate+.gate{border-left:1px solid #ffffff40}
.gate .n{font-size:32px;font-weight:500;line-height:1.1;color:var(--lime)}
.gate:hover{background:rgba(255,255,255,.06)}
.partners-label{display:flex;align-items:center;gap:12px;color:var(--ink);font-size:16px}
.partners-label::before{content:"";width:2px;height:16px;background:var(--lime)}
@media(max-width:760px){.gates{gap:0}.gate+.gate{border-left:0;border-top:1px solid #ffffff40}.gate .n{font-size:30px}}

/* OPEN-VID-V3 16:04：两组名单末尾的文字入口，桌面与手机共用。 */
.client-more{display:flex;align-items:center;gap:8px;width:max-content;min-height:44px;margin:8px 0 0 auto;color:var(--sub);font:400 14px/1.7 var(--font);text-underline-offset:4px}
.client-more:hover,.client-more:focus-visible{color:var(--ink);text-decoration:underline}

/* OPEN-VID-V5：荧光绿大字组与业务说明左右排列，手机上下排列。 */
.glass li::before{background:var(--lime)}
.gate{display:grid;grid-template-columns:max-content minmax(0,1fr) 28px;align-items:center}
.gate-word{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.gate .n,.gate .lit{font-size:32px;font-weight:500;line-height:1.1;color:var(--lime);letter-spacing:-.03em}
.gate:hover .lit{color:var(--lime)}
.gate-detail{min-width:0}
.gate .ar{align-self:start}
@media(max-width:760px){.gate{grid-template-columns:minmax(0,1fr) 28px}.gate-word{grid-column:1;grid-row:1}.gate-detail{grid-column:1;grid-row:2}.gate .ar{grid-column:2;grid-row:1}.gate .n,.gate .lit{font-size:30px}}

/* v6 Yuan 16:16：所见/预见/洞见改回白色，编号保持荧光绿 */
.gate .lit{color:#fff}

/* v9 Yuan 16:20：页眉 logo 改为 宏视传媒 × 光影，光影加粗；首屏大标题不变 */
.nav-brand{gap:.3em}
.nav-brand .b{font-weight:700}
.nav-brand .x{font-style:normal;font-weight:300;font-size:.8em;opacity:.85}

/* v10 Yuan 16:25：口号放大做主标题，宏视传媒｜光影缩小做副标题 */
.copy h1.slogan{font-family:"HS Sans";font-size:64px;font-weight:700;line-height:1.15;letter-spacing:-.02em;color:#fff;margin:0}
.copy .sub-brand{margin:18px 0 0}
.copy .sub-brand{color:rgba(255,255,255,.88);font-size:19px}.copy .sub-brand .brand,.copy .sub-brand .brand *{font-size:19px;font-weight:400;letter-spacing:0;color:rgba(255,255,255,.88)}.copy .sub-brand .brand .bar{height:.9em}
@media(max-width:1100px){.copy h1.slogan{font-size:52px}}
@media(max-width:760px){.copy h1.slogan{font-size:34px}.copy .sub-brand .brand,.copy .sub-brand .brand *{font-size:16px}}

/* OPEN-VID-V18 页眉 logo 荧光绿 */
.nav .nav-brand,.nav .nav-brand *{color:var(--lime)}

/* OPEN-VID-V19 */
.copy h1.slogan .gap{display:inline-block;width:.4em}
.copy .sub-brand{position:relative;left:1px}
.nav .menu a{font-size:16px;font-weight:700;letter-spacing:.02em}

/* OPEN-VID-V20 导航居中 */
.nav .wrap{position:relative}
.nav .menu{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);margin:0}

/* 手机首屏恢复自然文档流，避免绝对定位背景吞掉标题高度。 */
@media(max-width:760px){
.hero{min-height:0;padding:0 0 30px}.hero>.wrap{width:100%;height:auto;display:block;padding:0}
.hero .top{top:92px;left:20px;right:auto;max-width:58%}.hero .top .k{font-size:9px;letter-spacing:.1em}.hero .top .mk::before{display:none}
.hero .frame{position:relative;inset:auto;min-height:550px;height:auto;border-radius:0;padding:180px 20px 42px;overflow:hidden}
.hero .copy{position:relative;inset:auto;margin:0;max-width:100%}.copy .vis{flex-wrap:wrap;gap:10px}.copy .vis span{font-size:9px;letter-spacing:.08em}.copy .vis i{width:24px}
.copy h1.slogan{font-size:clamp(30px,7.8vw,52px);line-height:1.28}.copy h1.slogan .gap{display:block;height:6px;width:0}
.copy .row{flex-wrap:wrap;gap:10px;margin-top:24px}.copy .row .pill{min-height:44px;padding:10px 18px;font-size:13px}
.hero .motion-toggle{top:86px;right:20px;font-size:11px;min-height:32px}
.hero .gates{position:relative;inset:auto;margin:0 20px;display:grid;grid-template-columns:1fr;background:#141414}
.hero .gate{padding:22px}.hero .hint{position:static;margin:24px 0 0}
}