/* 91网 · 海岸科技清透影音空间 */
:root{--rose:#087E97;--rose-2:#169BB1;--rose-light:#A5DFE8;--rose-soft:#E1F5F8;--cream:#F5F9FC;--cream-2:#EAF2F8;--cream-3:#DCE9F3;--mauve:#337A9D;--mauve-deep:#155B7E;--plum:#244966;--plum-dark:#102A43;--lavender:#8DA6B8;--lavender-soft:#E4EDF5;--peach:#3A9FC2;--peach-soft:#DDF2F9;--sage:#3B9D9A;--sage-soft:#DCF3EF;--ink:#172D40;--ink-2:#425D70;--ink-3:#71899B;--surface:#fff;--line:rgba(36,73,102,.14);--line-strong:rgba(36,73,102,.25);--shadow:0 8px 28px rgba(16,42,67,.08);--shadow-hover:0 18px 42px rgba(16,42,67,.14);--radius:12px;--radius-card:18px;--radius-large:28px;--wrap:1320px}
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#BDD3DF;border-radius:12px;background:#fff;box-shadow:0 20px 45px rgba(16,42,67,.1);overflow:hidden}.browser-dots{height:30px;display:flex;gap:5px;align-items:center;padding:0 12px;background:#F1F6F9;border-bottom:1px solid var(--line)}.browser-dots i{width:6px;height:6px;border-radius:50%;background:#9DB8C5}.browser-address{margin:13px 14px;height:25px;border-radius:5px;background:#F2F7FA;padding:4px 10px;font-size:9px;color:var(--ink-3)}.browser-content{padding:12px 15px;display:grid;grid-template-columns:1fr 1fr;gap:8px}.browser-content span{grid-column:1/3;height:45px;border-radius:5px;background:linear-gradient(90deg,#CDE8EC,#E8F2F7)}.browser-content b,.browser-content i{height:32px;background:#DDEBF1;border-radius:4px}.browser-content em{grid-column:1/3;height:15px;background:#EDF3F7;border-radius:4px}.guide-copy h2{margin:15px 0}.guide-copy p{font-size:13px}.community-posts{display:grid;gap:12px}.community-posts article{padding:20px 23px;background:#fff;border:1px solid var(--line);border-radius:12px}.community-posts article>span{font-size:9px;color:var(--rose)}.community-posts h3{font-size:15px;margin:7px 0}.community-posts p{font-size:11px;margin:0}.safety-inline{display:flex;align-items:center;gap:25px;padding:27px 30px;border:1px solid var(--line);border-radius:14px}.safety-symbol{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:var(--sage-soft);color:#287F7A;font-size:28px;flex-shrink:0}.safety-inline>div:nth-child(2){flex:1}.safety-inline h2{font-size:22px;margin:5px 0}.safety-inline p{font-size:11px;margin:0}.app-showcase{display:grid;grid-template-columns:1fr 1fr;gap:10%;align-items:center}.app-showcase-copy h2{margin:15px 0}.app-showcase-copy p{font-size:13px}.app-showcase-art{height:350px;display:grid;place-items:center;background:radial-gradient(circle,#DDF2F5,transparent 65%)}.phone-mock{width:170px;height:300px;border:7px solid #244966;border-radius:28px;background:linear-gradient(150deg,#D9F0F2,#6CB2C2 65%,#155B7E);padding:28px 12px;color:#fff;box-shadow:0 25px 45px rgba(16,42,67,.18)}.phone-ui{display:flex;flex-direction:column;gap:12px}.phone-ui span{font-size:8px}.phone-ui b{font-size:25px;margin:18px 0}.phone-ui i{height:30px;border-radius:5px;background:rgba(255,255,255,.3)}.help-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.help-cards a{padding:24px;background:#fff;border:1px solid var(--line);border-radius:12px}.help-cards a>span{font-size:9px;color:var(--rose)}.help-cards h3{margin:18px 0 8px}.help-cards p{font-size:11px}.series-banner{min-height:250px;border-radius:16px;padding:35px 42px;background:linear-gradient(115deg,#D9EFF2,#8FC8D1 55%,#337A9D);display:flex;align-items:flex-end;justify-content:space-between;color:#fff}.series-banner h3{font-size:35px;color:#fff;margin:15px 0}.series-banner p{color:rgba(255,255,255,.8);font-size:11px}.format-table{border-top:1px solid var(--line)}.format-table>div{display:grid;grid-template-columns:160px 1fr 220px;align-items:center;gap:20px;padding:18px 12px;border-bottom:1px solid var(--line)}.format-table b{font-size:14px}.format-table span{font-size:12px;color:var(--ink-2)}.format-table small{font-size:10px;color:var(--ink-3)}.privacy-banner{display:grid;grid-template-columns:1fr 280px;gap:40px;align-items:center;padding:38px 5%;border-radius:16px;background:#EAF2F8}.privacy-banner h2{margin:14px 0}.privacy-banner p{font-size:12px}.privacy-visual{height:190px;display:grid;place-items:center}.privacy-ring{width:145px;height:145px;border:1px solid #7BBAC6;border-radius:50%;display:grid;place-items:center;color:var(--rose);font-size:36px;box-shadow:0 0 0 18px rgba(165,223,232,.2),0 0 0 38px rgba(165,223,232,.1)}.principle-row{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.principle-row>div{padding:20px;border-top:2px solid var(--rose-light);background:#fff}.principle-row b{font-size:10px;color:var(--rose)}.principle-row strong{display:block;margin:13px 0 6px}.principle-row p{font-size:10px;margin:0}.browser-link-list a{display:flex;justify-content:space-between;padding:17px 5px;border-bottom:1px solid var(--line);font-size:13px}.browser-link-list i{font-style:normal;color:var(--rose)}.about-quote{padding:48px 6%;background:#F5F9FC;border-radius:15px}.about-quote blockquote{font-size:clamp(25px,3.5vw,42px);line-height:1.35;max-width:850px;margin:23px 0;color:var(--plum-dark)}.final-cta{background:linear-gradient(120deg,#102A43,#155B7E);color:#fff}.final-cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.final-cta h2{color:#fff;margin:14px 0}.final-cta p{color:rgba(255,255,255,.65);font-size:12px}.final-cta-actions{display:grid;gap:15px;min-width:190px}.final-secondary{color:#BFE8EC;font-size:11px;text-align:center}
.site-footer{background:linear-gradient(135deg,#102A43,#155B7E);color:#fff;padding:60px 0 20px}.footer-top{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:8%}.brand--footer{color:#fff}.brand--footer small{color:rgba(255,255,255,.55)}.footer-brand p{max-width:320px;color:rgba(255,255,255,.62);font-size:11px;margin-top:20px}.footer-col{display:flex;flex-direction:column;gap:9px}.footer-col h3{color:#fff;font-size:12px;margin-bottom:8px}.footer-col a{font-size:10px;color:rgba(255,255,255,.65)}.footer-col a:hover{color:#A5DFE8}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:45px;padding-top:17px;border-top:1px solid rgba(255,255,255,.15);color:rgba(255,255,255,.5);font-size:9px}.bottom-nav{display:none}.back-top{position:fixed;right:22px;bottom:25px;width:40px;height:40px;border:1px solid var(--line);border-radius:50%;background:#fff;color:var(--rose);box-shadow:var(--shadow);opacity:0;pointer-events:none;z-index:20}.back-top.is-visible{opacity:1;pointer-events:auto}
.page-intro{padding:78px max(32px,calc((100% - var(--wrap))/2)) 62px;background:linear-gradient(115deg,#F5F9FC,#EAF2F8);border-bottom:1px solid var(--line)}.page-intro h1{font-size:clamp(2.5rem,4.6vw,4.2rem);margin:13px 0 16px}.page-intro p{max-width:760px;font-size:15px;line-height:1.9;margin:0}.prose-layout{width:min(var(--wrap),calc(100% - 64px));margin:auto;padding:75px 0;display:grid;grid-template-columns:1fr 300px;gap:10%}.prose-main{max-width:820px}.prose-block{padding:0 0 30px;margin-bottom:30px;border-bottom:1px solid var(--line)}.prose-block h2{font-size:24px;margin:9px 0 14px}.prose-block p{font-size:13px;line-height:2}.prose-aside{position:relative}.aside-note{position:sticky;top:120px;padding:25px;background:#EAF2F8;border-radius:13px}.aside-note h3{margin:12px 0}.aside-note p{font-size:11px}.long-note{max-width:900px;padding:28px 0}.long-note h2{font-size:23px;margin:10px 0}.long-note p{font-size:13px;line-height:2}.notice-box{padding:20px 23px;background:#EDF5F7;border-left:3px solid var(--rose);border-radius:5px;margin:35px 0}.notice-box b{font-size:12px}.notice-box p{font-size:11px;margin:5px 0 0}.filter-chips{display:flex;flex-wrap:wrap;gap:8px}.filter-chips a,.filter-chips button{border:1px solid var(--line);border-radius:30px;padding:8px 15px;background:#fff;color:var(--ink-2);font-size:11px}.filter-chips a:hover{background:var(--rose);border-color:var(--rose);color:#fff}.collection-list{display:grid;gap:18px}.collection-card{display:grid;grid-template-columns:100px 1fr;gap:25px;padding:30px;border:1px solid var(--line);border-radius:14px}.collection-number{font-size:44px;color:#9DCBD3;font-weight:300}.collection-main h2{font-size:25px;margin:8px 0}.collection-main>p{font-size:12px;line-height:1.9}.collection-details{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:15px 0;border-block:1px solid var(--line)}.collection-details span{font-size:10px;color:var(--ink-2)}.collection-details b{display:block;color:var(--ink-3);font-size:9px}.collection-end{text-align:center;padding:65px 0}.creator-directory{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.author-profile{padding:27px;border:1px solid var(--line);border-radius:14px}.author-profile h2{font-size:22px;margin:12px 0 5px}.author-profile p{font-size:12px}.detail-hero{display:grid;grid-template-columns:.95fr 1.05fr;gap:7%;align-items:center;padding-block:65px}.detail-art{height:390px;border-radius:16px;padding:30px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;color:#fff;background:linear-gradient(140deg,#9ACED8,#155B7E)}.detail-art span,.detail-art small{font-size:9px;letter-spacing:.14em}.detail-art b{font-size:38px;max-width:420px;line-height:1.25}.detail-copy h1{font-size:clamp(28px,3.5vw,43px);margin:13px 0}.detail-copy>p{font-size:13px;line-height:1.9}.detail-meta{display:flex;gap:25px;padding:18px 0;border-block:1px solid var(--line)}.detail-meta span{font-size:9px;color:var(--ink-3)}.detail-meta b{display:block;color:var(--ink);font-size:11px}.detail-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:22px}.reader-top{display:flex;justify-content:space-between;padding-block:25px}.reader-top>a{font-size:11px;color:var(--rose)}.reader-top button{border:1px solid var(--line);border-radius:20px;padding:7px 14px;background:#fff;font-size:10px}.reader-layout{display:grid;grid-template-columns:1fr 300px;gap:22px}.reader-stage{min-height:480px;border-radius:14px;background:#102A43;display:grid;place-items:center;padding:30px}.reader-placeholder{text-align:center;color:#fff}.reader-symbol{width:68px;height:68px;border:1px solid rgba(255,255,255,.35);border-radius:22px;display:grid;place-items:center;margin:0 auto 24px;font-size:24px;color:#A5DFE8}.reader-placeholder h1{font-size:26px;color:#fff;margin:15px 0}.reader-placeholder p{font-size:12px;color:rgba(255,255,255,.65)}.reader-progress{height:3px;background:rgba(255,255,255,.2);margin:30px 0 10px}.reader-progress span{display:block;width:28%;height:100%;background:#A5DFE8}.reader-side{padding:24px;border:1px solid var(--line);border-radius:12px}.reader-side h2{font-size:20px;margin:12px 0}.reader-side p{font-size:11px}.search-page-form{display:flex;gap:10px;max-width:760px;margin:0 auto 45px}.empty-state{text-align:center;padding:55px 20px;border:1px dashed var(--line-strong);border-radius:14px}.empty-state>span{font-size:35px;color:var(--rose)}.empty-state h2{font-size:22px;margin:10px}.empty-state p{font-size:12px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line);padding:0 4px}.faq-item summary{position:relative;list-style:none;cursor:pointer;padding:20px 35px 20px 0;font-size:14px;font-weight:650}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:4px;top:15px;color:var(--rose);font-size:22px}.faq-item[open] summary:after{content:"−"}.faq-answer{padding:0 35px 17px 0}.faq-answer p{font-size:12px;line-height:1.9;margin:0}.shelf-tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);margin-bottom:30px}.shelf-tabs button{border:0;background:none;padding:12px 18px;color:var(--ink-3);font-size:12px;border-bottom:2px solid transparent}.shelf-tabs button.is-selected{color:var(--rose);border-color:var(--rose)}.shelf-panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.shelf-panel-head h2{font-size:23px}.text-button{border:0;background:none;color:var(--rose);font-size:11px}.local-card-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.local-card{padding:18px;border:1px solid var(--line);border-radius:10px}.local-card h3{font-size:14px;margin:10px 0}.local-card p{font-size:10px}.local-card a,.local-card button{font-size:10px;color:var(--rose)}.contact-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:10%}.contact-form-wrap{padding:28px;border:1px solid var(--line);border-radius:13px}.contact-form{display:grid;gap:18px}.contact-form label{display:grid;gap:7px;font-size:11px;font-weight:650}.contact-form select,.contact-form textarea{width:100%;padding:12px;border:1px solid var(--line-strong);border-radius:7px;background:#fff;color:var(--ink)}.contact-form small{font-size:9px;color:var(--ink-3)}.form-error{padding:10px;background:#FFF0ED;color:#9A3D2E;font-size:11px}.error-page{text-align:center;padding-block:130px}.error-code{display:block;font-size:clamp(100px,18vw,190px);font-weight:750;line-height:1;color:#DCEEF2;letter-spacing:-.1em}.error-page h1{font-size:34px;margin:18px 0}.error-page p{font-size:13px}
@media(max-width:1200px){.desktop-nav{gap:12px}.desktop-nav a{font-size:11px}.header-inner{gap:18px}.quick-explore{grid-template-columns:repeat(4,1fr)}.quick-intro{grid-column:1/-1;display:flex;align-items:center;gap:25px}.quick-intro h2{margin:0}.quick-intro p{margin:0}.video-card__visual{height:165px}}
@media(max-width:1024px){.desktop-nav{display:none}.menu-toggle{display:grid}.header-actions{margin-left:auto}.hero-layout{grid-template-columns:1fr .85fr}.hero-copy h1{font-size:3.6rem}.creator-grid{grid-template-columns:repeat(2,1fr)}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-top{gap:4%}.topic-chip-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.wrap{width:min(var(--wrap),calc(100% - 44px))}.section-pad{padding-block:70px}.hero-layout{grid-template-columns:1fr;gap:5px}.hero-copy{padding-bottom:0}.hero-copy h1{font-size:clamp(3rem,8vw,4.3rem)}.hero-visual{height:390px}.featured-layout,.live-layout,.topic-band-inner,.browser-guide,.app-showcase,.detail-hero,.contact-layout{grid-template-columns:1fr}.live-layout{gap:35px}.topic-band-inner{gap:35px}.detail-art{height:320px}.reader-layout{grid-template-columns:1fr}.prose-layout{grid-template-columns:1fr}.prose-aside{display:none}.footer-top{grid-template-columns:1.5fr 1fr 1fr}.footer-col:last-child{display:none}}
@media(max-width:768px){.wrap{width:calc(100% - 36px)}.section-pad{padding-block:58px}.header-inner{width:calc(100% - 32px);height:64px}.mega-strip{display:none}.button--header,.desktop-only{display:none}.home-hero{padding:38px 0 20px}.hero-layout{grid-template-columns:1fr}.hero-copy h1{font-size:clamp(2.7rem,10vw,3.7rem);margin:17px 0}.hero-lead{font-size:14px}.hero-sub{font-size:10px}.hero-visual{height:340px}.hero-main-art{height:305px;width:275px}.floating-note{padding:9px 11px}.note-top{left:-2px;top:50px}.note-bottom{right:-4px;bottom:30px}.hero-bottom{font-size:8px}.quick-explore{grid-template-columns:repeat(2,1fr);gap:9px}.quick-intro{grid-column:1/-1;display:block;padding:0 0 10px}.quick-intro h2{font-size:25px;margin:8px 0}.quick-item{min-height:125px;padding:15px}.section-heading{display:block;margin-bottom:25px}.section-heading h2{font-size:27px}.section-heading p{font-size:11px}.section-heading .text-link{margin-top:12px}.featured-poster{min-height:255px;padding:17px}.poster-graphic{min-height:220px;padding:18px}.poster-graphic b{font-size:37px}.featured-copy h3{font-size:27px}.featured-copy>p{font-size:12px}.featured-facts{gap:15px;flex-wrap:wrap}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.video-card__visual{height:125px;padding:12px}.video-card__body{padding:12px}.video-card h3{font-size:13px}.video-card__body>p{font-size:9px;min-height:50px}.card-meta,.tag-line{font-size:8px}.live-text h2{font-size:2.6rem}.live-agenda{padding:17px}.agenda-row{grid-template-columns:28px 1fr;gap:9px}.creator-grid{gap:9px}.creator-card{padding:15px}.creator-avatar{width:42px;height:42px;font-size:16px;margin-bottom:13px}.creator-card h3{font-size:14px}.creator-card p{font-size:9px}.timeline-item{grid-template-columns:55px 12px 1fr;gap:9px;padding:17px 0}.timeline-item time{font-size:10px}.timeline-item h3{font-size:12px}.timeline-item p{font-size:9px}.topic-chip-grid{grid-template-columns:1fr}.topic-chip{min-height:90px;padding:15px}.ranking-layout{grid-template-columns:1fr;gap:20px}.browser-guide{padding:25px 20px;gap:20px}.guide-graphic{height:230px}.browser-window{height:180px}.guide-copy h2{font-size:27px}.new-content-row{grid-template-columns:1fr}.community-layout{grid-template-columns:1fr;gap:25px}.safety-inline{align-items:flex-start;flex-wrap:wrap;padding:20px}.app-promo-inner{grid-template-columns:1fr;gap:0}.app-device{height:280px}.help-cards{grid-template-columns:1fr}.format-table>div{grid-template-columns:90px 1fr;gap:8px}.format-table small{grid-column:2}.privacy-banner{grid-template-columns:1fr;padding:25px}.privacy-visual{height:160px}.principle-row{grid-template-columns:repeat(2,1fr);gap:9px}.final-cta-inner{display:block}.final-cta-actions{display:flex;margin-top:25px;align-items:center}.footer-top{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.footer-col:last-child{display:flex}.footer-bottom{flex-wrap:wrap;justify-content:flex-start;margin-top:30px}.page-intro{padding:55px 22px 40px}.page-intro h1{font-size:2.5rem}.page-intro p{font-size:12px}.collection-card{grid-template-columns:45px 1fr;gap:12px;padding:18px}.collection-number{font-size:30px}.collection-main h2{font-size:19px}.collection-details{grid-template-columns:1fr}.detail-hero{padding-block:35px;gap:25px}.detail-art{height:250px;padding:20px}.detail-art b{font-size:28px}.detail-copy h1{font-size:28px}.detail-meta{gap:13px}.reader-stage{min-height:330px;padding:20px}.reader-placeholder h1{font-size:20px}.search-page-form{flex-direction:column}.local-card-list{grid-template-columns:1fr 1fr}.contact-layout{grid-template-columns:1fr}.bottom-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;height:62px;padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-top:1px solid var(--line);z-index:45}.bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:9px;color:var(--ink-3)}.bottom-nav a span{font-size:17px;color:var(--rose)}.site-footer{padding-bottom:85px}.back-top{bottom:80px;right:13px}}
@media(max-width:420px){.hero-copy h1{font-size:2.55rem}.hero-visual{height:300px}.hero-main-art{height:275px;width:245px}.video-card__visual{height:105px}.video-card h3{font-size:12px}.video-card__body>p{display:none}.creator-grid{grid-template-columns:1fr 1fr}.footer-top{gap:20px}.footer-col a{font-size:9px}.footer-bottom{font-size:8px}.local-card-list{grid-template-columns:1fr}.principle-row{grid-template-columns:1fr 1fr}.page-intro h1{font-size:2.1rem}}