:root{--night:#091720;--night2:#102631;--lake:#6fa3b4;--lake-light:#b9d5d8;--sand:#c7aa72;--sand-light:#ead9b7;--snow:#edf2ef;--paper:#f5f2e9;--ink:#152028;--muted:#667078;--copper:#a65038;--line:rgba(21,32,40,.14);--shadow:0 24px 70px rgba(5,18,26,.16);--radius:28px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}img,video{display:block;max-width:100%}a{color:inherit}button,a{-webkit-tap-highlight-color:transparent}
.skip-link{position:fixed;z-index:99;top:12px;left:12px;transform:translateY(-180%);padding:10px 16px;color:#fff;background:var(--copper);border-radius:10px}.skip-link:focus{transform:none}
.hero{min-height:790px;position:relative;overflow:hidden;color:var(--snow);background:var(--night);isolation:isolate}.hero-art{position:absolute;inset:0;z-index:-3;background:url("assets/hero.jpg") 58% 50%/cover no-repeat;transform:scale(1.015);animation:breathe 14s ease-in-out infinite alternate}.hero-shade{position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,rgba(4,15,22,.94) 0%,rgba(5,17,24,.78) 42%,rgba(5,17,24,.15) 78%),linear-gradient(0deg,rgba(5,18,26,.92) 0%,transparent 32%,rgba(4,14,20,.32) 100%)}.hero:after{content:"";position:absolute;left:0;right:0;bottom:86px;height:1px;background:linear-gradient(90deg,transparent,rgba(234,217,183,.7) 14%,rgba(234,217,183,.2) 72%,transparent)}@keyframes breathe{to{transform:scale(1.04)}}
.topbar{width:min(1240px,calc(100% - 48px));margin:0 auto;padding:24px 0;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.16)}.brand{display:inline-flex;align-items:center;gap:12px;color:#fff;text-decoration:none}.brand-mark{width:42px;height:42px;display:grid;place-items:center;border:1px solid rgba(234,217,183,.66);color:var(--sand-light);font:700 13px/1 "DIN Alternate",ui-monospace,monospace;letter-spacing:.08em}.brand b{display:block;text-transform:uppercase;letter-spacing:.12em;font-size:14px}.brand small{display:block;color:rgba(255,255,255,.62);font-size:11px;letter-spacing:.18em}.nav-links{display:flex;gap:30px}.nav-links a{color:rgba(255,255,255,.72);text-decoration:none;font-size:13px;letter-spacing:.08em;transition:color .2s}.nav-links a:hover{color:#fff}
.hero-content{width:min(1240px,calc(100% - 48px));margin:0 auto;padding:116px 0 170px}.eyebrow,.section-number{margin:0 0 16px;color:var(--sand);font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase}.hero h1{display:flex;align-items:baseline;gap:22px;margin:0;font-family:"Kaiti SC","STKaiti","KaiTi","FangSong",serif;font-weight:400;line-height:.95}.hero h1 span{font-size:clamp(64px,8vw,118px);letter-spacing:.04em}.hero h1 em{color:var(--sand-light);font-size:clamp(24px,3vw,42px);font-style:normal;letter-spacing:.2em}.poet{margin:26px 0 0 8px;color:var(--lake-light);letter-spacing:.38em;font-size:14px}.hero-lead{margin:48px 0 0;color:rgba(255,255,255,.79);font-size:18px;line-height:1.9}.hero-actions,.card-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.hero-actions{margin-top:34px}
.button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;padding:12px 22px;border:0;border-radius:3px;font:700 14px/1.2 inherit;text-decoration:none;letter-spacing:.05em;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}.button:hover{transform:translateY(-2px)}.button:focus-visible,a:focus-visible,video:focus-visible{outline:3px solid var(--lake);outline-offset:4px}.button-primary{color:#fff;background:var(--copper);box-shadow:0 14px 28px rgba(166,80,56,.26)}.button-primary:hover{background:#b25b41}.button-ghost{color:#fff;border:1px solid rgba(255,255,255,.42);background:rgba(255,255,255,.05);backdrop-filter:blur(8px)}.button-secondary{color:#fff;background:var(--night)}.button-disabled{color:#8e9292;background:#dde0dc;cursor:not-allowed;box-shadow:none}.button-disabled:hover{transform:none}
.hero-facts{position:absolute;left:50%;bottom:0;width:min(1240px,calc(100% - 48px));height:86px;transform:translateX(-50%);display:grid;grid-template-columns:repeat(3,1fr)}.hero-facts div{display:flex;align-items:center;gap:14px;border-right:1px solid rgba(255,255,255,.14)}.hero-facts div+div{padding-left:34px}.hero-facts b{color:var(--sand-light);font-family:"DIN Alternate",ui-monospace,monospace;font-size:18px;letter-spacing:.05em}.hero-facts span{color:rgba(255,255,255,.56);font-size:12px;letter-spacing:.12em}
.section{padding:112px max(24px,calc((100% - 1240px)/2))}.section-heading{max-width:720px}.section-heading h2,.assurance-title h2{margin:0;font-family:"Kaiti SC","STKaiti","KaiTi","FangSong",serif;font-size:clamp(42px,5vw,68px);font-weight:400;line-height:1.18;letter-spacing:.025em}.section-heading>p:last-child{max-width:620px;margin:24px 0 0;color:var(--muted);font-size:16px}
.film-rail{margin:62px 0 30px;display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;color:var(--muted);font:700 11px/1 "DIN Alternate",ui-monospace,monospace;letter-spacing:.08em}.rail-line{position:relative;height:17px;display:flex;align-items:center;justify-content:space-between}.rail-line:before{content:"";position:absolute;left:0;right:0;top:8px;height:1px;background:var(--line)}.rail-line i{position:relative;width:1px;height:17px;background:var(--copper);opacity:.72}
.edition-key{margin:56px 0 26px;display:flex;gap:24px;flex-wrap:wrap;color:var(--muted);font-size:12px;letter-spacing:.08em}.edition-key span{display:flex;align-items:center;gap:9px}.edition-key i{width:24px;height:3px;display:inline-block}.key-ready{background:var(--copper)}.key-pending{border-top:2px dashed #959c98}
.video-card{overflow:hidden;border:1px solid var(--line);background:rgba(255,255,255,.58)}.video-card-featured{display:grid;grid-template-columns:minmax(360px,.85fr) minmax(520px,1.4fr);box-shadow:var(--shadow);border-radius:var(--radius)}.video-copy{padding:clamp(28px,4vw,54px)}.card-kicker{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px;letter-spacing:.14em}.status{display:inline-flex;align-items:center;min-height:26px;padding:4px 9px;font-weight:700;letter-spacing:.08em}.status-recommended{color:#fff;background:var(--copper)}.status-secondary{color:var(--night);border:1px solid var(--night)}.status-pending{color:#7a817e;border:1px dashed #959c98}.video-copy h3{margin:22px 0 0;font-family:"Kaiti SC","STKaiti","KaiTi",serif;font-size:clamp(34px,4vw,50px);font-weight:400;line-height:1.2}.card-summary{margin:18px 0 0;color:var(--muted)}
.spec-list{margin:34px 0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:1px;list-style:none;background:var(--line);border:1px solid var(--line)}.spec-list li{padding:15px 17px;display:flex;flex-direction:column;background:var(--paper)}.spec-list b{font:700 18px/1.2 "DIN Alternate",ui-monospace,monospace}.spec-list span{margin-top:3px;color:var(--muted);font-size:11px;letter-spacing:.08em}.text-link,.correction-link{color:var(--copper);font-weight:700;font-size:13px;text-decoration:none;border-bottom:1px solid rgba(166,80,56,.35)}.video-frame{padding:28px;background:var(--night);display:flex;flex-direction:column;justify-content:center}.video-label{margin-bottom:12px;display:flex;justify-content:space-between;color:rgba(255,255,255,.52);font-size:11px;letter-spacing:.12em}.video-frame video{width:100%;aspect-ratio:16/9;object-fit:cover;background:#020709;box-shadow:0 20px 50px rgba(0,0,0,.34)}
.secondary-grid{margin-top:24px;display:grid;grid-template-columns:1.35fr .65fr;gap:24px}.video-card-secondary{display:grid;grid-template-columns:1.08fr .92fr;border-radius:var(--radius)}.video-frame-small{padding:20px}.video-card-secondary .video-copy{padding:34px}.video-card-secondary .video-copy h3,.video-card-pending .video-copy h3{font-size:34px}.compact-spec{margin:24px 0;display:flex;flex-wrap:wrap;gap:8px}.compact-spec span{padding:6px 9px;color:var(--muted);border:1px solid var(--line);font-size:11px}.video-card-pending{position:relative;min-height:100%;border-radius:var(--radius);background:#e7e6df}.pending-visual{position:relative;height:160px;overflow:hidden;color:rgba(20,31,38,.16);background:linear-gradient(180deg,#d9dfdb,#e7e6df)}.pending-number{position:absolute;right:20px;top:-28px;font:700 112px/1 "DIN Alternate",ui-monospace,monospace}.horizon{position:absolute;left:10%;right:10%;bottom:44px;height:1px;background:rgba(20,31,38,.22)}.horizon i{position:absolute;bottom:0;width:18%;height:32px;border-left:1px solid rgba(20,31,38,.22);transform:skewX(-36deg)}.horizon i:nth-child(2){left:38%;height:52px}.horizon i:nth-child(3){right:8%;height:22px}.pending-dot{position:absolute;left:calc(50% - 5px);bottom:39px;width:10px;height:10px;border:2px solid rgba(20,31,38,.35);border-radius:50%;background:#e7e6df}.compact-spec-muted span{border-style:dashed;color:#888e8b}.video-card-pending .video-copy{padding:30px}.decision-note{margin-top:24px;padding:24px 28px;display:flex;align-items:flex-start;gap:16px;border-left:3px solid var(--copper);background:rgba(199,170,114,.13)}.decision-icon{flex:0 0 auto;width:26px;height:26px;display:grid;place-items:center;color:#fff;background:var(--copper);border-radius:50%;font-weight:800}.decision-note b{font-size:16px}.decision-note p{margin:4px 0 0;color:var(--muted);font-size:13px}
.ppt-preview{padding:20px;background:#1a282f;display:flex;flex-direction:column;justify-content:center}.ppt-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;transform:rotate(-1deg)}.ppt-grid figure{margin:0;overflow:hidden;border:1px solid rgba(234,217,183,.35);box-shadow:0 12px 30px rgba(0,0,0,.2)}.ppt-grid img{width:100%;aspect-ratio:16/9;object-fit:cover}.ppt-caption{margin-top:15px;display:flex;justify-content:space-between;color:rgba(255,255,255,.5);font-size:11px;letter-spacing:.1em}.stack-actions{display:flex;align-items:flex-start;flex-direction:column;gap:13px}.mini-link{color:var(--muted);font-size:12px;text-decoration:none;border-bottom:1px solid var(--line)}.mini-link:hover{color:var(--copper)}
.shoot-section{color:var(--snow);background:var(--night)}.section-heading-light>p:last-child{color:rgba(237,242,239,.58)}.setup-diagram{margin:72px 0 64px;display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:end;gap:28px}.setup-item{position:relative;text-align:center}.setup-index{position:absolute;left:8%;top:0;color:var(--sand);font:700 12px/1 ui-monospace,monospace}.setup-item b{display:block;margin-top:22px;color:#fff;font-size:15px}.setup-item p{margin:4px 0 0;color:rgba(255,255,255,.46);font-size:12px}.setup-arrow{padding-bottom:70px;color:rgba(185,213,216,.36);letter-spacing:.45em}.screen-shape{width:190px;height:108px;margin:0 auto;position:relative;border:2px solid rgba(185,213,216,.62);background:linear-gradient(145deg,rgba(111,163,180,.22),rgba(199,170,114,.12))}.screen-shape:before{content:"";position:absolute;inset:12px;border-bottom:1px solid rgba(234,217,183,.35);background:linear-gradient(155deg,transparent 48%,rgba(234,217,183,.16) 49%)}.child-shape{width:72px;height:110px;margin:0 auto;position:relative}.child-shape:before{content:"";position:absolute;left:24px;top:0;width:24px;height:24px;border:2px solid rgba(234,217,183,.72);border-radius:50%}.child-shape:after{content:"";position:absolute;left:10px;right:10px;top:32px;bottom:0;border:2px solid rgba(234,217,183,.72);border-radius:22px 22px 5px 5px}.camera-shape{width:126px;height:78px;margin:15px auto;position:relative;border:2px solid rgba(185,213,216,.62);border-radius:8px}.camera-shape:before{content:"";position:absolute;width:34px;height:34px;left:44px;top:20px;border:2px solid rgba(234,217,183,.6);border-radius:50%}.camera-shape:after{content:"";position:absolute;width:34px;height:13px;left:12px;top:-12px;border:2px solid rgba(185,213,216,.62);border-bottom:0;border-radius:4px 4px 0 0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14)}.steps article{padding:34px}.steps article+article{border-left:1px solid rgba(255,255,255,.14)}.steps span{color:var(--sand);font-size:11px;font-weight:700;letter-spacing:.18em}.steps h3{margin:13px 0 10px;color:#fff;font:400 26px/1.3 "Kaiti SC","STKaiti","KaiTi",serif}.steps p{margin:0;color:rgba(255,255,255,.56);font-size:13px}.guide-actions{margin-top:42px;display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.guide-link{min-height:96px;padding:20px 22px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;border:1px solid rgba(255,255,255,.15);color:#fff;text-decoration:none;transition:background .2s,border .2s}.guide-link:hover{background:rgba(255,255,255,.06);border-color:rgba(234,217,183,.45)}.guide-icon{width:44px;height:44px;display:grid;place-items:center;color:var(--sand-light);border:1px solid rgba(234,217,183,.44);font-family:"Kaiti SC","KaiTi",serif}.guide-link b,.guide-link small{display:block}.guide-link b{font-size:15px}.guide-link small{margin-top:4px;color:rgba(255,255,255,.44);font-size:11px}.guide-link i{color:var(--sand);font-style:normal}
.mode-steps{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14)}.mode-steps article{padding:34px}.mode-steps article+article{border-left:1px solid rgba(255,255,255,.14)}.mode-steps span{color:var(--sand);font-size:11px;font-weight:700;letter-spacing:.18em}.mode-steps h3{margin:13px 0 10px;color:#fff;font:400 28px/1.3 "Kaiti SC","STKaiti","KaiTi",serif}.mode-steps p{margin:0;color:rgba(255,255,255,.56);font-size:13px}.mode-steps a{display:inline-block;margin-top:18px;color:var(--sand-light);font-size:12px;text-decoration:none;border-bottom:1px solid rgba(234,217,183,.28)}
.correction-grid{margin-top:58px;display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.correction-grid article{min-height:200px;padding:32px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.correction-grid span{color:var(--copper);font:700 12px/1 ui-monospace,monospace}.correction-grid h3{margin:14px 0 8px;font-size:19px}.correction-grid p{margin:0;color:var(--muted);font-size:14px}.correction-link{margin-top:28px;display:inline-block;padding-bottom:3px}
.assurance-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center;color:var(--snow);background:var(--night2)}.assurance-title h2{font-size:clamp(38px,4vw,54px)}.assurance-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.assurance-list span{padding:14px 16px;border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.7);font-size:13px}.assurance-section>p{grid-column:2;margin:-40px 0 0;color:rgba(255,255,255,.42);font-size:11px}
footer{padding:50px max(24px,calc((100% - 1240px)/2));display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:40px;color:rgba(255,255,255,.54);background:#061119}footer b,footer span{display:block}footer b{color:#fff;font-family:"Kaiti SC","KaiTi",serif;font-size:20px;font-weight:400}footer span,footer p,footer a{font-size:11px}footer p{margin:0;text-align:center}footer a{color:var(--sand-light);text-decoration:none}
.reveal{opacity:0;transform:translateY(20px);transition:opacity .65s,transform .65s}.reveal.is-visible{opacity:1;transform:none}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}