/* 开云体育 · 轻量编辑杂志 */
:root{--bg:#f4f7fa;--paper:#fff;--subtle:#eaf1f6;--mint:#e9f8f8;--navy:#102e46;--deep:#163c57;--cyan:#13b8c5;--blue:#237bd3;--heading:#18364b;--text:#344c60;--muted:#64798a;--line:#dce6ed;--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-wrap:break-word}body.drawer-lock{overflow:hidden}a{color:#126392;text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}img{max-width:100%;height:auto}h1,h2,h3{color:var(--heading);line-height:1.38;letter-spacing:-.015em}h1{font-size:clamp(28px,3vw,42px);margin:12px 0 22px}h2{font-size:clamp(21px,2.15vw,27px);margin:0 0 18px}h3{font-size:clamp(18px,1.7vw,21px);margin:0 0 10px}p{margin:0 0 16px}ul,ol{padding-left:1.4em}li{margin:.35em 0}.container{width:min(calc(100% - 56px),var(--max));margin-inline:auto}.reading{max-width:790px}.site-header{position:relative;z-index:20}.brand-bar{background:#fff;border-bottom:1px solid var(--line)}.brand-bar-inner{display:flex;align-items:center;min-height:72px;gap:24px}.brand-logo{display:flex;align-items:center;flex:none;color:var(--heading);font-size:22px;font-weight:800;text-decoration:none}.brand-logo:hover{text-decoration:none}.brand-description{font-size:13px;color:var(--muted);margin-right:auto}.brand-text{white-space:nowrap}.brand-text small{font-size:10px;letter-spacing:.12em;display:block;line-height:1.1}.entry-button{display:inline-flex;align-items:center;justify-content:center;padding:7px 22px;min-height:42px;color:white;background:var(--deep);border-radius:8px;font-size:14px;font-weight:700;white-space:nowrap}.entry-button:hover{background:#0f536d;text-decoration:none}.desktop-nav{background:var(--navy)}.nav-items{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));min-height:50px;gap:1px}.nav-items a{position:relative;display:grid;place-items:center;min-width:0;padding:10px 3px;color:#e6f3fa;font-size:14px;white-space:nowrap}.nav-items a[aria-current=page]{font-weight:800;color:#fff}.nav-items a[aria-current=page]:after{content:"";position:absolute;bottom:0;left:25%;right:25%;height:3px;background:var(--cyan)}.nav-items a:hover{background:#204a63;text-decoration:none}.menu-button{display:none}.noscript-nav{display:none}.skip-link{position:absolute;z-index:99;top:-100px;left:12px;padding:10px;background:#fff}.skip-link:focus{top:8px}.mobile-drawer,.drawer-backdrop{visibility:hidden;pointer-events:none}.eyebrow{color:#0b7681;letter-spacing:.12em;text-transform:uppercase;font-size:12px;font-weight:800}.section{margin-block:58px}.section-header{max-width:800px;margin-bottom:25px}.section-header p{color:var(--muted)}.page-heading{padding:45px 0 34px;background:#fff;border-bottom:1px solid var(--line)}.page-heading h1{font-size:clamp(26px,3vw,35px);max-width:1000px}.page-lead{max-width:870px;font-size:17px;line-height:1.85;color:#456073}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:13px}.breadcrumb a{color:var(--muted)}.lead{font-size:18px;color:#405a6c}.prose p{margin-bottom:19px}.prose h2{margin-top:34px}.hero{padding:56px 0 20px}.hero-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:40px;align-items:center}.hero h1{font-size:clamp(29px,3.4vw,43px)}.hero-copy p{max-width:610px}.button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:9px 20px;background:var(--deep);color:#fff;border-radius:8px;font-weight:700;font-size:14px}.button--outline{background:transparent;color:var(--deep);border:1px solid #9ab8c8}.button:hover{text-decoration:none;filter:brightness(1.1)}.media-frame{display:flex;align-items:center;justify-content:center;width:100%;min-width:0;padding:9px;background:var(--subtle);border:1px solid var(--line);border-radius:14px;overflow:hidden}.media-frame img{display:block;width:auto;height:auto;max-width:100%;max-height:var(--media-limit,220px);object-fit:contain;object-position:center}.media-frame--hero{--media-limit:310px}.media-frame--feature{--media-limit:250px}.media-frame--card{--media-limit:185px}.media-frame--wide{--media-limit:210px}.media-frame--mobile{--media-limit:350px;max-width:320px}.media-frame--logo{padding:0;border:0;background:transparent;--media-limit:38px;border-radius:0}.media-frame--logo img{max-height:38px;max-width:205px}.media-missing{min-height:125px;background:repeating-linear-gradient(135deg,#eaf1f6,#eaf1f6 20px,#f2f7f9 20px,#f2f7f9 40px);color:var(--muted);font-size:13px}.media-frame--hero.media-missing{min-height:215px}.media-frame--logo.media-missing{min-height:32px}.topic-directory{background:#fff;padding:42px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:48px}.topic-item{border-top:1px solid var(--line);padding:19px 3px}.topic-item h3{margin:0 0 8px}.topic-item h3 a{color:var(--heading)}.topic-item p{font-size:15px;margin:0}.editorial-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px}.editorial-main{background:white;padding:30px;border-top:4px solid var(--cyan)}.editorial-aside{display:grid;gap:18px}.mini-article{padding:23px;background:var(--subtle);border-left:3px solid #92cbd1}.split-feature{display:grid;grid-template-columns:1fr 1.15fr;align-items:center;gap:34px}.section--tint{background:var(--mint);padding:42px 0}.section--dark{background:var(--deep);color:#edf8fb;padding:42px 0}.section--dark h2,.section--dark h3{color:#fff}.three-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.step-card{padding:21px;background:white;border:1px solid var(--line);border-radius:12px}.step-card .number{font-size:12px;font-weight:800;letter-spacing:.1em;color:#0b858e}.timeline{counter-reset:item;display:grid;gap:13px;list-style:none;padding:0}.timeline li{counter-increment:item;display:grid;grid-template-columns:43px 1fr;gap:15px;align-items:start;padding:15px;background:white;border-bottom:1px solid var(--line)}.timeline li:before{content:counter(item,decimal-leading-zero);font-weight:800;color:#0b8590}.timeline li strong{display:block;color:var(--heading)}.info-grid{display:grid;grid-template-columns:minmax(0,2.1fr) minmax(240px,.85fr);gap:36px}.side-note{padding:23px;background:var(--subtle);border-top:3px solid var(--cyan);align-self:start}.side-note h3{font-size:19px}.wide-panel{padding:30px;background:#fff;border:1px solid var(--line);margin-block:28px}.table-scroll{overflow-x:auto;max-width:100%;border:1px solid var(--line);border-radius:9px;background:#fff}.data-table{width:100%;border-collapse:collapse;min-width:550px;font-size:15px;line-height:1.65}.data-table caption{text-align:left;padding:15px 17px;font-weight:800;color:var(--heading);background:#f0f6f9}.data-table th,.data-table td{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}.data-table th{background:#eaf1f6;color:var(--heading)}.data-table tr:last-child td{border-bottom:0}.anchor-nav{display:flex;flex-wrap:wrap;gap:9px;margin:21px 0 26px}.anchor-nav a{display:inline-flex;align-items:center;padding:7px 13px;background:#fff;border:1px solid var(--line);border-radius:7px;font-size:14px;font-weight:700}.chapter{margin-block:48px}.chapter>h2{border-bottom:1px solid var(--line);padding-bottom:13px}.quote-box{border-left:4px solid var(--cyan);padding:16px 22px;background:var(--mint);margin:22px 0;color:#214759}.reading-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:24px 0 0}.reading-link{padding:17px 19px;display:grid;gap:7px;background:white;border:1px solid var(--line);border-radius:10px;color:var(--text);text-decoration:none}.reading-link strong{color:var(--heading)}.reading-link span:nth-child(2){font-size:14px;color:var(--muted)}.reading-link:hover{text-decoration:none;border-color:var(--cyan)}.project-matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.project-matrix article{padding:23px;border-top:4px solid var(--cyan);background:#fff}.gallery-stack{display:grid;gap:40px}.gallery-row{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}.gallery-row:nth-child(even) .media-frame{order:2}.gallery-row:nth-child(even) .gallery-text{order:1}.service-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:40px}.service-sidebar{background:var(--subtle);padding:20px;align-self:start}.service-sidebar a{display:block;padding:6px 0}.faq{background:#fff;border:1px solid var(--line);margin:9px 0;border-radius:7px}.faq summary{font-weight:700;color:var(--heading);padding:13px 17px;cursor:pointer}.faq p{padding:0 17px 15px;margin:0}.callout{background:var(--mint);padding:24px;border-left:4px solid var(--cyan)}.small{font-size:14px;color:var(--muted)}.site-footer{background:#0b2539;color:#dcecf5;padding:43px 0 20px;font-size:14px}.footer-layout{display:grid;grid-template-columns:1.4fr 1fr;gap:70px}.footer-brand{font-size:23px;font-weight:800;color:white}.footer-brand small{display:block;font-size:11px;letter-spacing:.15em;line-height:1.2}.site-footer h2{color:#fff;font-size:17px}.footer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 18px}.site-footer a{color:#dcecf5}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #365469;padding-top:15px;margin-top:28px}.mobile-quick-links{display:none}.back-top{position:fixed;right:18px;bottom:22px;width:42px;height:42px;background:var(--navy);color:white;border:0;border-radius:10px;z-index:10;cursor:pointer}.back-top[hidden]{display:none}
@media(max-width:920px){.container{width:min(calc(100% - 44px),var(--max))}.brand-bar-inner{min-height:62px;display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:9px}.brand-logo{justify-self:center;min-width:0}.brand-logo .media-frame--logo img{max-height:30px;max-width:150px}.brand-logo .brand-text{font-size:17px}.brand-logo .brand-text small{font-size:8px}.brand-description,.desktop-nav{display:none}.entry-button{font-size:12px;min-height:40px;padding:6px 11px}.menu-button{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer}.menu-button span{display:block;width:19px;height:2px;background:var(--navy)}.drawer-backdrop{position:fixed;inset:0;z-index:40;background:rgba(10,30,48,.55);opacity:0;transition:opacity .2s,visibility .2s}.drawer-backdrop.is-visible{visibility:visible;pointer-events:auto;opacity:1}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;z-index:41;width:min(86vw,340px);background:white;overflow-y:auto;transform:translateX(-102%);transition:transform .2s,visibility .2s;padding:20px;box-shadow:0 0 20px #1233}.mobile-drawer.is-open{visibility:visible;pointer-events:auto;transform:translateX(0)}.drawer-heading{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:12px}.drawer-heading button{border:0;background:var(--subtle);border-radius:7px;width:40px;height:40px;font-size:26px;color:var(--heading);cursor:pointer}.mobile-drawer nav p{font-size:12px;font-weight:800;letter-spacing:.13em;color:var(--muted);margin:19px 0 7px}.mobile-drawer nav a{display:block;padding:10px 7px;color:var(--heading);font-weight:600;border-bottom:1px solid var(--line)}.noscript-nav{display:block;background:#fff;border-bottom:1px solid var(--line)}.noscript-nav .container{display:flex;gap:12px;flex-wrap:wrap;padding:10px 0;font-size:13px}.mobile-quick-links{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:20px 0;font-size:13px}.hero-grid,.split-feature{gap:23px}.section{margin-block:42px}}
@media(max-width:760px){.hero-grid,.split-feature,.info-grid,.editorial-grid,.gallery-row,.service-layout,.footer-layout{grid-template-columns:1fr}.hero-grid{gap:24px}.hero-copy{order:0}.gallery-row:nth-child(even) .media-frame,.gallery-row:nth-child(even) .gallery-text{order:initial}.reading-links,.three-cols,.project-matrix{grid-template-columns:1fr 1fr}.service-sidebar{order:2}.service-content{order:1}.topic-grid{gap:16px}.footer-layout{gap:24px}}
@media(max-width:640px){body{font-size:15px;line-height:1.77}.container{width:calc(100% - 32px)}.section{margin-block:34px}.hero{padding:34px 0 14px}.hero h1{font-size:29px}.page-heading{padding:31px 0 24px}.page-heading h1{font-size:27px}.page-lead{font-size:15px}.lead{font-size:16px}.topic-directory{padding:29px 0}.topic-grid,.three-cols,.reading-links,.project-matrix{grid-template-columns:1fr}.topic-item{padding:14px 0}.editorial-main,.wide-panel{padding:19px}.anchor-nav a{font-size:13px}.section--tint,.section--dark{padding:29px 0}.media-frame--hero{--media-limit:205px}.media-frame--feature{--media-limit:185px}.media-frame--card{--media-limit:145px}.media-frame--wide{--media-limit:135px}.media-frame--mobile{--media-limit:285px;max-width:250px}.media-frame--logo img{max-height:30px}.footer-bottom{display:block}.footer-bottom a{display:block}.button-row{gap:8px}.button{padding:8px 14px}.gallery-stack{gap:28px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}