/*
谷间整站样式。占位位置：微信、电话、邮箱、二维码、四个视频地址（含首屏月光与弹层映射）。
占位状态由 main.js 顶部 SITE_CONFIG 控制；此文件只控制标签的视觉表现。
*/
:root{--paper:#eff2f0;--ink:#283e46;--muted:#587079;--line:rgba(88,112,121,.28);--serif:'Noto Serif SC','Songti SC',SimSun,serif;--sans:'Noto Sans SC','Microsoft YaHei',sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:36px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-weight:400}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0;touch-action:manipulation}
button,a,summary{-webkit-tap-highlight-color:transparent}
img,video{display:block;max-width:100%}
img{height:auto}
[hidden]{display:none!important}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--ink);outline-offset:6px}
::selection{background:var(--ink);color:var(--paper)}
p,h1,h2,h3,figure{margin:0}
.site-shell{max-width:1640px;margin:auto;padding:36px 5.5vw 28px}
.skip-link{position:fixed;left:20px;top:16px;z-index:20;background:var(--paper);padding:12px 20px;border:1px solid var(--ink);transform:translateY(-160%)}
.skip-link:focus{transform:translateY(0)}
.site-header{display:flex;justify-content:space-between;align-items:center;gap:36px}
.brand{display:flex;align-items:center;gap:20px;flex-shrink:0}
.brand strong{font-size:21px;font-weight:500;letter-spacing:.15em}
.brand span{font:9px/1.7 var(--sans);letter-spacing:.19em;border-left:1px solid var(--line);padding-left:19px}
.site-header nav{display:flex;gap:27px;align-items:center;font:11px/1.8 var(--sans)}
.site-header nav a{padding:10px 0}
.site-header nav a:hover{color:var(--muted)}
.site-header nav .nav-contact{border-bottom:1px solid var(--muted);padding-inline:6px}
.hero{min-height:calc(100svh - 110px);display:flex;flex-direction:column}
.composition{display:grid;grid-template-columns:1fr 1.4fr 1fr;gap:5vw;align-items:center;flex:1;min-height:650px;padding:65px 0 76px;position:relative}
.poem{display:flex;flex-direction:row-reverse;justify-content:center;gap:24px;align-self:center;padding-bottom:60px}
.poem h1{writing-mode:vertical-rl;font-size:clamp(40px,4.1vw,64px);font-weight:400;letter-spacing:.19em;line-height:1.6}
.poem p{writing-mode:vertical-rl;font-size:12px;letter-spacing:.24em;line-height:2.1;margin:48px 0 0;color:var(--muted)}
.hero-window{position:relative;width:100%;height:490px;align-self:center}
.image-window{width:100%;height:100%;display:block;position:relative;padding:0;isolation:isolate}
.image-window img{width:100%;height:100%;object-fit:cover}
.hero-window img{object-position:38% center}
.hero-window::after{position:absolute;pointer-events:none;content:'';width:22%;height:1px;background:var(--muted);bottom:35px;right:-30px}
.hero-window figcaption{position:absolute;top:calc(100% + 16px);left:0;width:100%;display:flex;align-items:center;gap:9px;flex-wrap:wrap;font:10px/1.7 var(--sans);color:var(--muted)}
.hero-window figcaption small{display:block;flex-basis:100%;font-size:10px}
.window-action{position:absolute;bottom:16px;right:15px;padding:7px 12px;background:var(--paper);color:var(--ink);font:10px/1.6 var(--sans);opacity:0;transition:opacity .25s}
.image-window:hover .window-action,.image-window:focus-visible .window-action{opacity:1}
.hero-notes{align-self:end;margin-bottom:44px}
.signature{font-family:Georgia,'Times New Roman',serif;font-style:italic;font-weight:400;color:var(--muted)}
.hero-notes .signature{font-size:33px;margin-bottom:42px;line-height:1.15}
.hero-notes h2{font-size:19px;font-weight:500;line-height:1.9;margin-bottom:24px}
.subtle{font:12px/2.3 var(--sans);color:var(--muted)}
.hero-notes .subtle{margin-bottom:30px}
.text-link{display:flex;align-items:center;justify-content:space-between;gap:22px;max-width:180px;width:100%;border-bottom:1px solid var(--muted);padding:10px 0 14px;font-size:12px;line-height:1.5;text-align:left}
.text-link>span:last-child{font-family:var(--sans);font-size:18px}
.hero-foot{display:flex;justify-content:space-between;align-items:center;gap:25px;padding-top:24px;font:10px/1.8 var(--sans);color:var(--muted)}
.hero-foot .signature{font-size:16px}
.section{margin-top:140px;padding-top:75px;border-top:1px solid var(--line);scroll-margin-top:35px}
.editorial{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2.25fr);gap:7vw}
.section-name{font:11px/1.8 var(--sans);color:var(--muted);margin-bottom:27px}
.section h2{font-size:clamp(27px,2.6vw,40px);line-height:1.65;font-weight:400;letter-spacing:.02em}
.aside-note{font:12px/2 var(--sans);color:var(--muted);margin-top:29px}
.section-intro .signature{font-size:21px;line-height:1.5;margin-top:48px}
.section-body{min-width:0;padding-top:8px}
.price-list p{font-size:15px;line-height:2.05;padding:24px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}
.price-list p:first-child{padding-top:0}
.additional{font:12px/2.15 var(--sans);margin:31px 0 26px;overflow-wrap:anywhere}
.fine-print{font:11px/2.15 var(--sans);color:var(--muted);max-width:670px}
.fine-print p+p{margin-top:7px}
.work-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:40px}
.work-intro{font:12px/2.2 var(--sans);color:var(--muted);margin-right:10%;padding-bottom:10px}
.work-grid{display:grid;grid-template-columns:repeat(2,minmax(0,340px));justify-content:space-between;gap:75px 70px;padding:65px 7% 0 17%}
.sample{min-width:0}
.sample:nth-child(even){margin-top:120px}
.sample .image-window{height:auto;aspect-ratio:4/5}
.sample:first-child img{object-position:57% center}
.sample figcaption{padding-top:22px}
.sample-title{display:flex;justify-content:space-between;align-items:center;gap:12px}
.sample-title h3{font-size:20px;font-weight:400}
.sample-title>span{font:10px/1.8 var(--sans);color:var(--muted)}
.sample figcaption p{font-size:13px;margin-top:13px;line-height:1.8}
.sample figcaption small{display:block;font:10px/1.8 var(--sans);color:var(--muted);margin-top:15px}
.placeholder-label{display:inline-block;font:9px/1.5 var(--sans);letter-spacing:.03em;padding:1px 5px;border:1px solid var(--line);color:var(--muted);white-space:nowrap;vertical-align:middle}
.work-signature{font-size:28px;line-height:1.5;text-align:center;margin:86px 0 0}
.process-list{list-style:none;counter-reset:steps;margin:0;padding:0}
.process-list li{counter-increment:steps;display:grid;grid-template-columns:36px 1fr;gap:23px;font-size:15px;line-height:2.1;padding:23px 0;border-bottom:1px solid var(--line)}
.process-list li:first-child{padding-top:0}
.process-list li::before{content:counter(steps,decimal-leading-zero);font:italic 22px/1.6 Georgia,serif;color:var(--muted)}
.about-opening{font-size:23px;line-height:1.95}
.about-copy{font:13px/2.2 var(--sans);color:var(--muted);margin-top:25px}
.principles{margin:50px 0 0}
.principles>div{display:grid;grid-template-columns:110px 1fr;gap:20px;border-bottom:1px solid var(--line);padding:24px 0}
.principles dt{font-size:16px;line-height:1.8}
.principles dd{font:13px/2.2 var(--sans);margin:0;color:var(--muted)}
.faq-list{padding-top:0}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:22px;font-size:16px;line-height:1.9;cursor:pointer;list-style:none;padding:23px 0;min-height:65px}
.faq-list details:first-child summary{padding-top:6px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary span{width:13px;height:13px;flex-shrink:0;position:relative;color:var(--muted)}
.faq-list summary span::before,.faq-list summary span::after{content:'';position:absolute;top:6px;left:0;width:13px;height:1px;background:currentColor}
.faq-list summary span::after{transform:rotate(90deg);transition:transform .2s}
.faq-list details[open] summary span::after{transform:rotate(0)}
.faq-list details p{font:13px/2.25 var(--sans);color:var(--muted);padding:0 35px 26px 0;max-width:650px}
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:44px;align-items:start}
.contact-lines{min-width:0}
.contact-line{display:grid;grid-template-columns:30px minmax(0,1fr) auto auto;gap:11px;align-items:center;padding:17px 0;border-bottom:1px solid var(--line);font:12px/1.9 var(--sans)}
.contact-label{font-size:11px;color:var(--muted)}
.contact-value{overflow-wrap:anywhere;user-select:text}
.copy-button{padding:6px 0 6px 6px;font:11px/1.9 var(--sans);text-decoration:underline;text-underline-offset:5px}
.social-name{font:12px/2 var(--sans);color:var(--muted);margin-top:23px}
.qr{margin-top:5px}
.qr-window{width:150px;aspect-ratio:1;border:1px solid var(--line);padding:10px}
.qr-window img{width:100%;height:100%;object-fit:contain}
.qr-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px;font:11px/1.8 var(--sans);color:var(--muted)}
.qr figcaption{font:10px/1.8 var(--sans);color:var(--muted);text-align:center;margin-top:13px}
.brief{padding-top:43px;margin-top:30px;border-top:1px solid var(--line)}
.brief>p:first-child{font-size:18px;line-height:1.9}
.brief-template{font:13px/2.15 var(--sans);margin:20px 0 17px;user-select:text}
.brief .text-link{max-width:170px}
.copy-status{min-height:28px;margin-top:18px;font:11px/1.9 var(--sans);color:var(--muted)}
.site-footer{border-top:1px solid var(--line);margin-top:110px;padding:36px 0 0;display:flex;justify-content:space-between;align-items:end;gap:25px}
.footer-brand{font-size:17px;letter-spacing:.07em}
.footer-english{font:9px/1.8 var(--sans);letter-spacing:.18em;margin-top:8px}
.footer-legal{font:10px/2.1 var(--sans);color:var(--muted)}
.back-top{font:11px/2 var(--sans);white-space:nowrap}
#sample-dialog{position:fixed;inset:0;width:min(1180px,calc(100% - 48px));max-height:92dvh;margin:auto;padding:28px 32px;border:1px solid var(--line);background:var(--paper);color:var(--ink);overflow:auto}
#sample-dialog::backdrop{background:rgba(40,62,70,.82)}
.dialog-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:22px}
.dialog-heading h2{font-size:21px;line-height:1.5;font-weight:400}
.dialog-close{display:flex;align-items:center;gap:16px;font:12px/1.8 var(--sans);padding:8px 0 8px 10px}
.dialog-close span{font:25px/1 var(--sans)}
.expanded-frame img,.expanded-frame video{width:100%;height:auto;max-height:65dvh;object-fit:contain;background:var(--paper)}
.expanded-frame figcaption{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-top:16px;font:11px/1.8 var(--sans);color:var(--muted)}
#sample-dialog-notice,#video-status{font:12px/1.9 var(--sans);color:var(--muted);margin-top:16px}
body:has(dialog[open]){overflow:hidden}
.noscript-note{font:12px/2 var(--sans);padding:24px 5.5vw}
@media(hover:none){.window-action{opacity:1}}
@media(min-width:1600px){.hero-window{height:56vh;max-height:630px}.composition{gap:6vw}}
@media(max-width:1050px){
.site-header{gap:24px}.site-header nav{gap:16px;font-size:10px}.brand{gap:12px}.brand span{padding-left:12px}
.composition{gap:4vw;grid-template-columns:.9fr 1.4fr .9fr}.poem{gap:12px}.poem h1{font-size:40px}.hero-notes .signature{font-size:28px}.hero-notes h2{font-size:17px}.hero-window{height:450px}
.editorial{grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:5vw}.work-grid{padding-left:10%;padding-right:4%;gap:60px}.contact-grid{grid-template-columns:minmax(0,1fr);gap:28px}.qr{display:flex;align-items:center;gap:25px}.qr figcaption{text-align:left}.qr-window{width:135px;flex-shrink:0}.price-list p{font-size:14px}
}
@media(max-width:760px){
.site-shell{padding:26px 24px}.site-header{flex-wrap:wrap;gap:23px}.brand strong{font-size:20px}.site-header nav{width:100%;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:10px}.site-header nav a{padding:5px 0}.site-header nav .nav-contact{padding-inline:0}
.hero{min-height:0}.composition{grid-template-columns:.8fr 1.2fr;gap:25px;padding:45px 0 30px;min-height:0}.poem{padding-bottom:0;gap:10px;justify-content:center}.poem h1{font-size:clamp(30px,7.7vw,43px);letter-spacing:.15em}.poem p{font-size:10px;margin-top:35px;letter-spacing:.12em}.hero-window{height:365px}.hero-window::after{right:-10px;bottom:28px}.hero-window figcaption{font-size:8px;gap:5px;top:calc(100% + 12px)}.hero-window figcaption small{font-size:8px}.hero-window .placeholder-label{font-size:8px}
.hero-notes{grid-column:1/-1;margin:63px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.hero-notes .signature{display:none}.hero-notes h2{font-size:18px;margin:0;grid-row:1/3}.hero-notes .subtle{font-size:11px;margin:0 0 18px}.hero-notes .text-link{font-size:11px}.hero-foot{flex-direction:column;align-items:flex-start;gap:10px;padding-top:24px;border-top:1px solid var(--line);font-size:9px}.hero-foot .signature{font-size:16px}
.section{margin-top:94px;padding-top:43px}.editorial{grid-template-columns:1fr;gap:36px}.section-name{font-size:10px;margin-bottom:17px}.section h2{font-size:29px;line-height:1.6}.section-intro{position:relative}.section-intro .signature{margin-top:24px;font-size:18px}.aside-note{font-size:11px;margin-top:17px}.section-body{padding-top:0}
.price-list p{font-size:14px;padding:21px 0;line-height:2.1}.additional{font-size:11px;margin:27px 0 21px}.fine-print{font-size:11px}
.work-heading{display:block}.work-intro{font-size:11px;margin:23px 0 0;padding:0}.work-grid{padding:39px 0 0 0;gap:49px 28px;grid-template-columns:repeat(2,minmax(0,1fr))}.sample:nth-child(even){margin-top:60px}.sample .image-window{aspect-ratio:3/5}.sample-title{align-items:flex-start;flex-direction:column;gap:8px}.sample-title h3{font-size:18px}.sample-title>span{font-size:9px}.sample figcaption{padding-top:17px}.sample figcaption p{font-size:11px;margin-top:12px}.sample figcaption small{font-size:9px;line-height:1.9;margin-top:11px}.window-action{bottom:9px;right:7px;padding:5px 7px;font-size:8px}.work-signature{font-size:24px;margin-top:52px}
.process-list li{font-size:14px;grid-template-columns:26px 1fr;gap:16px;padding:20px 0}.process-list li::before{font-size:20px}
.about-opening{font-size:20px}.about-copy{font-size:12px;margin-top:20px}.principles{margin-top:27px}.principles>div{grid-template-columns:80px 1fr;gap:15px;padding:20px 0}.principles dt{font-size:14px}.principles dd{font-size:12px}
.faq-list summary{font-size:15px;padding:21px 0;gap:18px}.faq-list details p{font-size:12px;line-height:2.2;padding-right:15px}
.contact-grid{gap:29px}.contact-line{font-size:11px;gap:9px;grid-template-columns:28px minmax(0,1fr) auto auto;padding:15px 0}.contact-label{font-size:10px}.copy-button{font-size:10px;padding-left:4px}.social-name{font-size:11px}.qr{gap:25px}.qr-window{width:140px}.qr figcaption{font-size:10px}.brief{padding-top:30px;margin-top:5px}.brief>p:first-child{font-size:17px}.brief-template{font-size:12px;line-height:2.1}.copy-status{font-size:11px}
.site-footer{margin-top:65px;padding-top:29px;align-items:flex-start;flex-wrap:wrap;gap:24px}.footer-brand{font-size:16px}.footer-legal{order:3;flex-basis:100%;font-size:9px}.back-top{font-size:10px}.footer-english{font-size:8px}
#sample-dialog{width:calc(100% - 24px);max-height:92dvh;padding:20px 16px}.dialog-heading{margin-bottom:20px}.dialog-heading h2{font-size:18px}.dialog-close{font-size:10px;gap:10px}.expanded-frame figcaption{font-size:9px;gap:8px}#sample-dialog-notice,#video-status{font-size:11px;line-height:2}.placeholder-label{font-size:8px}
}
@media(max-width:360px){.site-shell{padding-inline:20px}.site-header nav{gap:9px;font-size:9px}.hero-window{height:325px}.hero-notes{gap:18px}.hero-notes h2{font-size:16px}.hero-notes .subtle{font-size:10px}.poem{gap:5px}.poem h1{font-size:29px}.poem p{font-size:9px}.contact-line{gap:7px}.work-grid{gap:42px 22px}.sample-title>span{font-size:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}


/* ===== 过往合作品牌（关于我们 · 两行无限循环）===== */
.clients{grid-column:1/-1;min-width:0;margin-top:72px;padding-top:34px;border-top:1px solid var(--line)}
.clients .section-name{margin-bottom:22px}
.clients-rows{display:flex;flex-direction:column;gap:28px}
.clients-marquee{display:flex;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.clients-track{display:flex;align-items:center;flex-shrink:0;margin:0;padding:6px 0;list-style:none;animation:clients-scroll 60s linear infinite}
.clients-marquee--reverse .clients-track{animation-direction:reverse}
.clients-marquee:hover .clients-track,.clients-marquee:focus-within .clients-track{animation-play-state:paused}
.clients-track li{flex-shrink:0;display:flex;align-items:center;margin-right:84px}
.clients-track img{display:block;height:28px;width:auto;max-width:none;filter:grayscale(1);mix-blend-mode:multiply;opacity:.55;transition:opacity .3s}
.clients-track img.logo-tall{height:40px}
.clients-track li:hover img{opacity:.9}
.clients-note{font:11px/2 var(--sans);color:var(--muted);margin:18px 0 0}
@keyframes clients-scroll{to{transform:translateX(-25%)}}
@media(max-width:760px){.clients{margin-top:40px;padding-top:24px}.clients-rows{gap:14px}.clients-track{animation-duration:40s}.clients-track li{margin-right:48px}.clients-track img{height:22px}.clients-track img.logo-tall{height:32px}}
@media(prefers-reduced-motion:reduce){.clients-track li:nth-child(n+7){display:none}.clients-track{flex-wrap:wrap;row-gap:20px}.clients-marquee{-webkit-mask-image:none;mask-image:none}}

/* ===== 手机端导航：菜单按钮 + 全屏面板 ===== */
.nav-toggle{display:none}
@media(max-width:760px){
  .site-header{flex-wrap:nowrap;justify-content:space-between;align-items:center;gap:16px;position:relative;z-index:30}
  .nav-toggle{display:inline-flex;position:relative;z-index:26;align-items:center;justify-content:center;width:44px;height:44px;margin-right:-10px;padding:0;border:0;background:none;color:var(--ink);cursor:pointer}
  .nav-icon{position:relative;display:block;width:22px;height:12px}
  .nav-icon::before,.nav-icon::after{content:'';position:absolute;left:0;width:22px;height:1px;background:currentColor;transition:transform .25s,top .25s}
  .nav-icon::before{top:0}.nav-icon::after{top:11px}
  body.nav-open .nav-icon::before{top:5.5px;transform:rotate(45deg)}
  body.nav-open .nav-icon::after{top:5.5px;transform:rotate(-45deg)}
  .site-header nav{display:none}
  body.nav-open .site-header nav{display:flex;position:fixed;inset:0;z-index:25;flex-direction:column;justify-content:center;align-items:flex-start;gap:0;width:auto;padding:110px 32px 48px;background:var(--paper);font-family:var(--serif);font-size:24px;line-height:1.3;letter-spacing:.08em;overflow:auto}
  body.nav-open .site-header nav a{width:100%;padding:16px 0;border-bottom:1px solid var(--line)}
  body.nav-open .site-header nav a:first-child{border-top:1px solid var(--line)}
  body.nav-open .site-header nav .nav-contact{margin-top:28px;border:0;padding:16px 0 0;font-family:var(--sans);font-size:13px;letter-spacing:.24em;color:var(--muted)}
  body.nav-open{overflow:hidden}
  body.nav-open .brand{position:relative;z-index:26}
  #site-nav:focus{outline:none}
}

/* ===== 手机端悬浮「获取报价」 ===== */
.quote-fab{display:none}
@media(max-width:760px){
  .quote-fab{display:inline-flex;align-items:center;justify-content:center;position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:20;min-height:48px;padding:0 22px;background:var(--ink);color:var(--paper);font:14px/1 var(--sans);letter-spacing:.18em;box-shadow:0 6px 18px rgba(40,62,70,.18);transition:opacity .25s,transform .25s}
  .quote-fab:focus-visible{outline:2px solid var(--ink);outline-offset:4px}
  .quote-fab.is-hidden,body.nav-open .quote-fab,body:has(dialog[open]) .quote-fab{opacity:0;transform:translateY(12px);pointer-events:none}
}

/* 菜单打开时页头固定，保证字标与关闭按钮始终可见 */
@media(max-width:760px){
  body.nav-open .site-header{position:fixed;top:0;left:0;right:0;padding:26px 24px 0;background:transparent}
}
@media(max-width:360px){
  body.nav-open .site-header{padding-inline:20px}
}

/* ===== 首屏：整屏影像 + 叠字 ===== */
.site-shell{position:relative}
.site-header{position:absolute;top:36px;left:5.5vw;right:5.5vw;z-index:30;color:var(--paper)}
.site-header .brand span{border-left-color:rgba(240,242,241,.4)}
.site-header nav .nav-contact{border-bottom-color:currentColor}
.site-header nav a:hover{color:rgba(240,242,241,.7)}
.site-header a:focus-visible,.nav-toggle:focus-visible{outline-color:currentColor}
.hero.hero--media{position:relative;display:block;height:100svh;min-height:620px;max-height:1100px;width:calc(100vw - var(--sbw,0px));margin:-36px 0 0 calc(50% - (100vw - var(--sbw,0px))/2);overflow:hidden;background:#101d26;color:var(--paper)}
.hero-media{position:absolute;inset:0}
.hero-media video,.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:40% center}
.hero-poster{animation:hero-drift 40s ease-in-out infinite alternate;transform-origin:45% 55%}
@keyframes hero-drift{from{transform:scale(1)}to{transform:scale(1.07)}}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,29,38,.55) 0%,rgba(16,29,38,.15) 45%,rgba(16,29,38,0) 70%),linear-gradient(180deg,rgba(16,29,38,.25) 0%,rgba(16,29,38,0) 30%,rgba(16,29,38,.55) 100%)}
.hero-stage{position:relative;z-index:2;height:100%;padding:130px 5.5vw 56px;display:grid;grid-template-columns:auto 1fr;align-items:end}
.hero--media .poem{align-self:center;padding:0 0 40px;justify-content:flex-start}
.hero--media .poem h1{color:var(--paper);font-size:clamp(56px,6.2vw,96px);letter-spacing:.2em;line-height:1.5;text-shadow:0 2px 24px rgba(16,29,38,.35)}
.hero--media .hero-notes{justify-self:end;margin:0;max-width:360px;text-align:left}
.hero--media .hero-notes .signature{color:rgba(240,242,241,.8);font-size:30px;margin-bottom:30px}
.hero--media .hero-notes h2{color:var(--paper);font-size:18px;margin-bottom:18px}
.hero--media .hero-notes .subtle{color:rgba(240,242,241,.72);margin-bottom:24px}
.hero--media .text-link{color:var(--paper);border-bottom-color:rgba(240,242,241,.6)}
.hero-placeholder{position:absolute;left:5.5vw;bottom:24px;margin:0}
.hero--media .placeholder-label{color:rgba(240,242,241,.75);border-color:rgba(240,242,241,.4)}
.hero-foot{padding:24px 0 0}
@media(max-width:760px){
  .site-header{top:26px;left:24px;right:24px}
  .hero.hero--media{margin-top:-26px;min-height:560px}
  .hero-media video,.hero-media img{object-position:32% center}
  .hero-stage{padding:110px 24px 64px;grid-template-columns:1fr;align-items:end}
  .hero--media .poem{position:absolute;left:24px;top:50%;transform:translateY(-58%);padding:0}
  .hero--media .poem h1{font-size:clamp(44px,12vw,60px);letter-spacing:.16em}
  .hero--media .hero-notes{justify-self:start;max-width:none;padding-left:0}
  .hero--media .hero-notes .signature{display:none}
  .hero--media .hero-notes h2{font-size:17px}
  .hero-placeholder{left:24px;bottom:16px}
  body.nav-open .site-header{color:var(--ink)}
  body.nav-open .site-header .brand span{border-left-color:var(--line)}
}
@media(max-width:360px){.site-header{left:20px;right:20px}.hero-stage{padding-inline:20px}.hero--media .poem{left:20px}.hero-placeholder{left:20px}}
@media(prefers-reduced-motion:reduce){.hero-poster{animation:none}}

/* ===== 首屏双按钮 ===== */
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-ghost{display:inline-flex;align-items:center;min-height:44px;padding:0 20px;border:1px solid rgba(240,242,241,.6);color:var(--paper);font:13px/1 var(--sans);letter-spacing:.14em;transition:background .25s,color .25s}
.btn-ghost:hover{background:var(--paper);color:var(--ink)}
.btn-ghost:focus-visible{outline:2px solid var(--paper);outline-offset:4px}

/* ===== 样片区：横版 / 竖版视频占位 ===== */
.work-grid{grid-template-columns:repeat(12,minmax(0,1fr));gap:56px 40px;padding:56px 0 0;justify-content:stretch;align-items:start}
.sample:nth-child(even){margin-top:0}
.sample[data-orientation="landscape"]{grid-column:span 7}
.sample[data-orientation="portrait"]{grid-column:span 5}
.sample[data-orientation="landscape"] .image-window{aspect-ratio:16/9}
.sample[data-orientation="portrait"] .image-window{aspect-ratio:9/16}
.sample .image-window::after{content:"";position:absolute;left:50%;top:50%;width:56px;height:56px;margin:-28px 0 0 -28px;border:1px solid rgba(240,242,241,.85);border-radius:50%;background:rgba(16,29,38,.28) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 6.5v11l9-5.5z' fill='%23f0f2f1'/%3E%3C/svg%3E") center/22px no-repeat;pointer-events:none;transition:transform .25s,background .25s}
.sample .image-window:hover::after{transform:scale(1.06);background-color:rgba(16,29,38,.45)}
.expanded-frame[data-orientation="portrait"] img,.expanded-frame[data-orientation="portrait"] video{width:auto;max-width:100%;max-height:78dvh;margin:0 auto;display:block}
@media(max-width:760px){
  .work-grid{grid-template-columns:repeat(12,minmax(0,1fr));gap:36px 16px;padding-top:32px}
  .sample[data-orientation="landscape"]{grid-column:span 12}
  .sample[data-orientation="portrait"]{grid-column:span 7}
  .sample .image-window::after{width:44px;height:44px;margin:-22px 0 0 -22px;background-size:18px}
}

/* 首屏底部两行：片型 / 产品类型 */
.hero-foot-lines{display:flex;flex-direction:column;gap:6px;text-align:right}
@media(max-width:760px){.hero-foot{flex-direction:column;align-items:flex-start;gap:10px}.hero-foot-lines{text-align:left}}
@media(max-width:760px){.hero--media .hero-actions{gap:10px}.hero--media .hero-actions a{flex:1;justify-content:center;padding:0 12px;min-width:0}}
@media(max-width:760px){.hero--media .hero-notes{display:block;width:100%}.hero--media .hero-notes h2{margin:0 0 14px}.hero--media .hero-notes .subtle{margin:0 0 22px}.hero--media .hero-actions a{min-height:46px;font-size:13px}}

/* ===== 关于我们：完整介绍（第二部分） ===== */
#about.section{margin-top:110px}
.about-body .about-opening{font-size:clamp(24px,2.1vw,30px);line-height:1.9}
.about-body .about-copy{font:15px/2.1 var(--sans);color:var(--ink);margin-top:28px;max-width:44em}
.about-scope{margin:44px 0 0;border-top:1px solid var(--line)}
.about-scope>div{display:grid;grid-template-columns:120px 1fr;gap:24px;align-items:baseline;padding:22px 0;border-bottom:1px solid var(--line)}
.about-scope dt{font:12px/1.8 var(--sans);letter-spacing:.12em;color:var(--muted)}
.about-scope dd{margin:0;font-size:clamp(18px,1.5vw,22px);line-height:1.8;letter-spacing:.02em}
@media(max-width:760px){
  #about.section{margin-top:70px}
  .about-body .about-opening{font-size:22px}
  .about-body .about-copy{font-size:14px;line-height:2}
  .about-scope{margin-top:30px}
  .about-scope>div{grid-template-columns:1fr;gap:6px;padding:18px 0}
  .about-scope dd{font-size:17px}
}
.hero--media .hero-notes h2{margin-bottom:28px}

/* ===== 合作流程：居中垂直时间线 ===== */
.process-section{display:block;text-align:center}
.process-section .section-intro{margin-bottom:40px}
.process-section .section-body{padding-top:0}
.process-section .process-list{position:relative;max-width:620px;margin:0 auto;padding:8px 0 0;counter-reset:steps}
.process-section .process-list::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--line);transform:translateX(-.5px)}
.process-section .process-list li{display:block;position:relative;padding:36px 0 0;border:0;font-size:17px;line-height:1.9}
.process-section .process-list li:first-child{padding-top:0}
.process-section .process-list li::before{content:counter(steps,decimal-leading-zero);display:inline-block;position:relative;margin:0 auto 14px;padding:0 14px;background:var(--paper);font:italic 20px/1.4 Georgia,'Times New Roman',serif;color:var(--muted)}
.process-section .process-list li>span{display:inline-block;position:relative;max-width:34em;padding:2px 18px;background:var(--paper)}
.process-section .process-list li:last-child::after{content:"";display:block;width:6px;height:6px;margin:30px auto 0;border-radius:50%;background:var(--muted);position:relative}
@media(max-width:760px){
  .process-section .section-intro{margin-bottom:26px}
  .process-section .process-list li{padding-top:28px;font-size:15px;line-height:1.85}
  .process-section .process-list li::before{font-size:18px;margin-bottom:10px}
  .process-section .process-list li>span{padding:2px 12px}
}
.process-section .process-list li::before{display:block;width:max-content;margin:0 auto 12px}
.process-section .process-list li>span{display:inline-block}

/* 合作流程：去序号，竖线加向下箭头 */
.process-section .process-list li::before{content:"";display:block;width:9px;height:9px;margin:0 auto 26px;padding:0;border-right:1px solid var(--muted);border-bottom:1px solid var(--muted);border-radius:0;background:transparent;transform:rotate(45deg)}
.process-section .process-list li:first-child::before{display:none}
.process-section .process-list li{padding-top:30px}
.process-section .process-list li:first-child{padding-top:12px}
.process-section .process-list li:last-child::after{width:9px;height:9px;margin:30px auto 0;border-radius:0;background:transparent;border-right:1px solid var(--muted);border-bottom:1px solid var(--muted);transform:rotate(45deg)}
@media(max-width:760px){.process-section .process-list li{padding-top:24px}.process-section .process-list li::before{margin-bottom:20px}}
.faq-list details:last-child{border-bottom:0}

/* 已选透明字标：保留原图，通过视窗收起头像画布的透明留白。 */
.brand .brand-logo{padding:0;border:0;position:relative;display:block;width:136px;aspect-ratio:1040/750;overflow:hidden;flex-shrink:0}
.brand-logo img{position:absolute;width:120.576923%;max-width:none;height:auto;left:-11.538462%;top:-34.666667%}
.site-header .brand-logo--black{display:none}
@media(max-width:760px){
  .site-header .brand-logo{width:112px}
  body.nav-open .site-header .brand-logo--white{display:none}
  body.nav-open .site-header .brand-logo--black{display:block}
}



/* 桌面首屏层次：小字标留在页头，竖排诗句向画面内侧独立排布。 */
@media(min-width:761px){
  .site-header .brand-logo{width:104px}
  .hero-stage{padding-top:150px}
  .hero--media .poem{padding:0;transform:translateX(calc(max(0px, 50vw - 820px) + clamp(40px,6vw,100px)))}
  .hero--media .poem h1{font-size:clamp(34px,5svh,48px);letter-spacing:.12em;line-height:1.45}
}