.about-page{--paper:#f5f1e9;--paper-soft:#fbf8f1;--sage:#dfe4d8;--ink:#252821;--muted:#6d7169;--brass:#a87a43;--line:#d8d2c6;--moss:#65745c;background:var(--paper-soft);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif}.about-page *,.about-page *::before,.about-page *::after{box-sizing:border-box}.about-page img{display:block;max-width:100%}.about-page a{color:inherit;text-decoration:none}.about-page .site-shell{width:min(1260px,calc(100% - 80px));margin:0 auto}.about-page .site-header{position:absolute;inset:0 0 auto;z-index:30;height:92px;background:transparent;box-shadow:none}.about-page .site-header.scrolled{position:fixed;background:rgba(248,245,238,.96);border-bottom:1px solid var(--line);box-shadow:none;backdrop-filter:blur(14px)}.about-page .site-header-inner{height:92px;display:flex;align-items:center;justify-content:space-between;gap:36px}.about-page .site-brand{display:inline-flex;align-items:center;gap:16px;min-width:205px;font-weight:650}.about-page .site-brand img{width:112px}.about-page .site-brand span{padding-left:16px;border-left:1px solid var(--line);font-size:17px}.about-page .site-nav{display:flex;align-items:center;gap:clamp(20px,2.2vw,36px)}.about-page .site-nav a{position:relative;padding:34px 0 22px;font-size:14px;font-weight:560;white-space:nowrap}.about-page .site-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:1px;background:var(--brass);transition:right .2s ease}.about-page .site-nav a:hover::after,.about-page .site-nav a.active::after{right:0}.about-page .mobile-menu-btn{display:none;border:0;background:transparent;padding:8px}.about-page .mobile-menu-btn span{display:block;width:24px;height:1px;margin:5px 0;background:var(--ink)}.about-page .site-kicker{margin:0 0 14px;color:var(--brass);font:500 11px/1.2 Georgia,"Times New Roman",serif;letter-spacing:.18em}.about-page h1,.about-page h2{font-family:Georgia,"Songti SC",STSong,serif;font-weight:500;letter-spacing:.04em}.about-page .site-button{min-height:44px;padding:0 22px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid #a9aa9f;background:transparent;font-size:13px;font-weight:560;transition:transform .2s ease,background-color .2s ease}.about-page .site-button:hover{transform:translateY(-2px);background:#fff}.about-page .site-button.primary{border-color:var(--moss);background:var(--moss);color:#fff}.about-page .site-button.primary:hover{background:#53624e}
.about-hero{padding:155px 0 68px;background:var(--paper-soft)}.about-hero-inner{position:relative}.about-hero-copy{max-width:620px}.about-hero h1{margin:0;font-size:clamp(48px,5vw,70px);line-height:1.28}.about-hero-copy>p:last-child{max-width:550px;margin:24px 0 0;color:var(--muted);font-size:15px;line-height:1.9}.about-principles{margin:48px 0 62px;display:flex;gap:42px}.about-principles>div{display:flex;align-items:center;gap:12px}.about-principles i{color:var(--moss);font-size:32px}.about-principles span{max-width:135px;color:var(--muted);font-size:11px;line-height:1.5}.about-principles strong{display:block;color:var(--ink);font-size:14px}.about-triptych{position:relative;margin:0;overflow:hidden;border-radius:6px}.about-triptych>img{width:100%;height:auto;aspect-ratio:3/1;object-fit:cover}.about-triptych figcaption{position:absolute;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(3,1fr);color:#fff;font-size:12px}.about-triptych figcaption span{padding:34px 20px 16px;background:rgba(33,35,31,.36)}
.about-section{padding:72px 0;border-top:1px solid var(--line)}.story-grid{display:grid;grid-template-columns:220px 1fr;gap:70px}.story-copy h2,.about-section-head h2,.delivery-intro h2,.capability-grid h2{margin:0;font-size:clamp(30px,3vw,42px);line-height:1.2}.story-copy>p:last-child,.about-section-head>p,.delivery-intro>p,.capability-grid>div>p{color:var(--muted);font-size:12px;line-height:1.85}.story-line{position:relative;margin:35px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);list-style:none}.story-line::before{content:"";position:absolute;left:8%;right:8%;top:16px;height:1px;background:var(--line)}.story-line li{position:relative;padding:0 16px;text-align:center}.story-line i{position:relative;z-index:1;width:34px;height:34px;margin:0 auto 16px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:var(--paper-soft);color:var(--moss);font-size:17px}.story-line strong{display:block;font-size:14px}.story-line span{display:block;margin-top:8px;color:var(--muted);font-size:10px;line-height:1.65}
.centers{background:#eceee8}.about-section-head{display:flex;align-items:end;justify-content:space-between;gap:40px;margin-bottom:38px}.about-section-head>p{max-width:430px;margin:0}.center-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.center-grid article{min-height:395px;padding:28px;display:flex;flex-direction:column;border:1px solid #ccd0c7;background:rgba(255,255,255,.3);text-align:center}.center-grid article>i{width:54px;height:54px;margin:0 auto 20px;display:grid;place-items:center;border:1px solid #c8ccc3;border-radius:50%;background:#f9f8f3;color:var(--moss);font-size:27px}.center-grid h3{margin:0;font:500 21px/1.2 Georgia,"Songti SC",STSong,serif}.center-grid strong{display:block;margin-top:5px;font-size:12px}.center-grid p{margin:12px auto 22px;color:var(--muted);font-size:11px;line-height:1.8}.center-photo{width:130px;height:130px;margin:auto auto 0;overflow:hidden;border:4px solid rgba(255,255,255,.65);border-radius:50%}.center-photo img{width:300%;max-width:none;height:100%;object-fit:cover}.center-photo.one img{object-position:left}.center-photo.two img{margin-left:-100%;object-position:center}.center-photo.three img{margin-left:-200%;object-position:right}
.delivery{background:var(--paper-soft)}.delivery .site-shell{display:grid;grid-template-columns:260px 1fr;gap:60px;align-items:center}.delivery-intro>p{margin:14px 0 22px}.delivery-steps{margin:0;padding:0;display:grid;grid-template-columns:repeat(7,1fr);list-style:none}.delivery-steps li{position:relative;text-align:center}.delivery-steps li:not(:last-child)::after{content:"";position:absolute;top:23px;left:70%;right:-30%;height:1px;background:var(--line)}.delivery-steps i{position:relative;z-index:1;width:48px;height:48px;margin:0 auto 11px;display:grid;place-items:center;background:var(--paper-soft);color:var(--moss);font-size:29px}.delivery-steps span{display:block;color:var(--brass);font:500 10px/1 Georgia,serif}.delivery-steps strong{display:block;margin-top:7px;font-size:11px;font-weight:600}
.capabilities{background:#e9e8e0}.capability-grid{display:grid;grid-template-columns:280px 1fr;gap:70px}.capability-grid>div>p{margin:14px 0 24px}.capability-items{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #cecbc1}.capability-items article{min-height:110px;padding:22px;display:grid;grid-template-columns:42px 1fr;align-content:center;border-right:1px solid #cecbc1;border-bottom:1px solid #cecbc1}.capability-items article:nth-child(3n){border-right:0}.capability-items i{grid-row:1/3;color:var(--moss);font-size:29px}.capability-items strong{font:500 22px/1.1 Georgia,"Songti SC",STSong,serif}.capability-items span{margin-top:5px;color:var(--muted);font-size:10px;line-height:1.4}
.about-cta{min-height:420px;display:grid;grid-template-columns:1fr 1fr;background:var(--paper-soft);border-top:1px solid var(--line)}.about-cta-visual{overflow:hidden}.about-cta-visual img{width:100%;height:100%;object-fit:cover}.about-cta-copy{padding:70px clamp(42px,7vw,110px);display:flex;flex-direction:column;justify-content:center}.about-cta-copy h2{margin:0;font-size:clamp(34px,3.4vw,52px);line-height:1.35}.about-cta-copy>p:not(.site-kicker){max-width:590px;margin:18px 0 28px;color:var(--muted);font-size:13px;line-height:1.8}.about-cta-copy>div{display:flex;gap:14px;flex-wrap:wrap}
.about-page .site-footer{padding:30px 0;border-top:1px solid var(--line);background:#e7e4dc}.about-page .site-footer-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:28px;color:#5f635c;font-size:12px}.about-page .site-footer-brand{display:flex;align-items:center;gap:14px;color:var(--ink);font-weight:650}.about-page .site-footer-brand img{width:82px}.about-page .site-footer-brand span{padding-left:14px;border-left:1px solid #bcb7ac}.about-page .site-footer-inner p{margin:0;text-align:center}.about-page .site-footer nav{justify-self:end;display:flex;gap:24px}
@media(max-width:1040px){.about-page .site-shell{width:min(100% - 44px,940px)}.about-page .site-nav{gap:17px}.about-page .site-nav a{font-size:12px}.story-grid{grid-template-columns:1fr}.center-grid{gap:12px}.delivery .site-shell{grid-template-columns:1fr}.capability-grid{grid-template-columns:1fr}.about-cta{grid-template-columns:.85fr 1.15fr}}
@media(max-width:760px){.about-page .site-shell{width:min(100% - 36px,620px)}.about-page .site-header,.about-page .site-header-inner{height:72px}.about-page .site-brand{min-width:0;gap:10px}.about-page .site-brand img{width:88px}.about-page .site-brand span{padding-left:10px;font-size:14px}.about-page .mobile-menu-btn{display:block}.about-page .site-nav{position:absolute;top:72px;left:0;right:0;display:none;padding:16px 24px 24px;flex-direction:column;align-items:stretch;gap:0;background:rgba(248,245,238,.98);border-bottom:1px solid var(--line)}.about-page .site-nav.active{display:flex}.about-page .site-nav a{padding:12px 0;font-size:14px}.about-page .site-nav a::after{display:none}.about-hero{padding:118px 0 54px}.about-hero h1{font-size:42px}.about-principles{margin:36px 0;display:grid;grid-template-columns:1fr 1fr;gap:22px}.about-triptych>img{aspect-ratio:1.15/1}.about-triptych figcaption{position:static;display:grid;grid-template-columns:1fr;background:#41443f}.about-triptych figcaption span{padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.12)}.about-section{padding:56px 0}.story-grid{gap:15px}.story-line{grid-template-columns:1fr 1fr;margin-top:20px}.story-line::before{display:none}.story-line li{padding:18px 10px;border-top:1px solid var(--line)}.about-section-head{display:block}.about-section-head>p{margin-top:14px}.center-grid{grid-template-columns:1fr}.center-grid article{min-height:360px}.delivery-steps{grid-template-columns:repeat(2,1fr);gap:12px}.delivery-steps li{padding:16px;border-bottom:1px solid var(--line)}.delivery-steps li:not(:last-child)::after{display:none}.capability-items{grid-template-columns:1fr 1fr}.capability-items article:nth-child(3n){border-right:1px solid #cecbc1}.capability-items article:nth-child(even){border-right:0}.about-cta{grid-template-columns:1fr}.about-cta-visual{height:260px}.about-cta-copy{padding:50px 22px}.about-page .site-footer-inner{grid-template-columns:1fr;justify-items:center;text-align:center}.about-page .site-footer nav{justify-self:center}}
@media(prefers-reduced-motion:reduce){.about-page *{scroll-behavior:auto!important;transition:none!important}}
.about-page .about-hero-copy{max-width:900px}.about-page .about-hero h1{font-size:clamp(48px,4.4vw,64px)}
@media(max-width:760px){.about-page .about-hero h1{font-size:42px}}
.about-page a:focus-visible,.about-page button:focus-visible{outline:2px solid var(--brass);outline-offset:4px}
@media(max-width:760px){.about-page .about-triptych>img{height:auto;aspect-ratio:auto;object-fit:contain}}
.about-page .site-nav a,.about-page .site-nav a.active{color:var(--ink)}
.about-page .center-photo img{width:100%;max-width:100%;height:100%;margin-left:0;object-fit:cover}
.about-page .about-hero{padding-top:72px}
@media(max-width:760px){.about-page .about-hero{padding-top:56px}}

/* 与首页一致的沉浸式首屏；品牌故事从下一屏开始。 */
.about-page .about-immersive-hero{position:relative;min-height:100svh;margin-top:calc(-1 * var(--header-h,80px));padding:var(--header-h,80px) 0 0;overflow:hidden;background:var(--paper-soft)}
.about-page .about-immersive-hero .about-hero-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.about-page .about-immersive-hero .about-hero-inner{position:relative;z-index:1;min-height:calc(100svh - var(--header-h,80px));display:flex;align-items:center}
.about-page .about-immersive-hero .about-hero-copy{width:min(54%,780px);max-width:780px}
.about-page .about-immersive-hero h1{margin:0;font-size:clamp(50px,4.5vw,68px);line-height:1.22}
.about-page .about-immersive-hero .about-hero-copy>p:not(.site-kicker){max-width:590px;margin:24px 0 0;color:#4f554d;font-size:15px;line-height:1.9}
.about-page .immersive-tags{margin-top:28px;display:flex;align-items:center;flex-wrap:wrap;color:#555c53;font-size:12px;letter-spacing:.08em}
.about-page .immersive-tags span{padding:0 17px;border-right:1px solid var(--line)}
.about-page .immersive-tags span:first-child{padding-left:0}.about-page .immersive-tags span:last-child{border-right:0}
.about-page .about-hero-actions{margin-top:34px;display:flex;align-items:center;flex-wrap:wrap;gap:14px}
@media(max-width:760px){.about-page .about-immersive-hero{min-height:780px;margin-top:calc(-1 * var(--header-h,72px));padding:var(--header-h,72px) 0 0}.about-page .about-immersive-hero .about-hero-image{inset:auto 0 0;height:42%;object-position:55% center}.about-page .about-immersive-hero .about-hero-inner{min-height:708px;padding-top:48px;align-items:flex-start}.about-page .about-immersive-hero .about-hero-copy{width:100%;max-width:none}.about-page .about-immersive-hero h1{font-size:39px;line-height:1.25}.about-page .about-immersive-hero .about-hero-copy>p:not(.site-kicker){max-width:350px;margin-top:18px;font-size:13px;line-height:1.75}.about-page .immersive-tags{margin-top:20px;font-size:10px}.about-page .immersive-tags span{padding:0 9px}.about-page .about-hero-actions{margin-top:24px}}

/* 画面安全区：桌面保持完整协作团队，竖屏切换专门的 9:16 构图。 */
.about-page .about-immersive-hero>picture{position:absolute;inset:0;z-index:0;display:block;width:100%;height:100%;overflow:hidden}
.about-page .about-immersive-hero>picture .about-hero-image{position:absolute;inset:0;width:100%;height:100%;max-width:none;object-fit:cover;object-position:center bottom}
@media(min-aspect-ratio:2/1){.about-page .about-immersive-hero>picture .about-hero-image{object-position:center 68%}}
@media(max-width:760px),(max-aspect-ratio:4/5){.about-page .about-immersive-hero>picture .about-hero-image{inset:0;width:100%;height:100%;object-position:center}.about-page .about-immersive-hero .about-hero-copy{width:100%;max-width:360px}.about-page .about-immersive-hero h1{font-size:clamp(37px,10.5vw,44px)}.about-page .about-immersive-hero .about-hero-copy>p:not(.site-kicker){max-width:350px}.about-page .about-immersive-hero .immersive-tags{display:none}.about-page .about-hero-actions{margin-top:22px}}