:root{--ink:#143428;--green:#163d2e;--paper:#f5f6f0;--line:#d5dccf;--lime:#d6ed91;--muted:#5f6f64}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:var(--paper);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7}a{color:inherit;text-underline-offset:5px}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #91b14b;outline-offset:5px}button[hidden],[hidden]{display:none!important}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.25;font-weight:600}p+ p{margin-top:16px}.ic-skip{position:absolute;left:16px;top:-100px;z-index:10;background:white;padding:12px}.ic-skip:focus{top:8px}.ic-header{max-width:1440px;margin:auto;display:flex;justify-content:space-between;align-items:center;padding:25px 4%;gap:25px}.ic-brand{font-size:27px;font-weight:700;letter-spacing:-1px;text-decoration:none;line-height:1.15;display:block}.ic-brand span{font-size:11px;display:block;letter-spacing:1px;font-weight:400;margin-top:8px}.ic-header nav{display:flex;gap:32px;font-size:13px}.ic-header nav a{text-decoration:none}.ic-header nav [aria-current]{border-bottom:1px solid}.ic-hero{display:grid;grid-template-columns:1fr 1.12fr;max-width:1440px;margin:0 auto;background:#e8eeda}.ic-hero-copy{padding:70px 11% 58px}.ic-kicker{font-size:11px;letter-spacing:2px;font-weight:600}.ic-hero h1{font-size:clamp(39px,4vw,61px);letter-spacing:-2px;line-height:1.15;margin:28px 0 23px}.ic-lead{font-size:16px;line-height:1.9;color:#405949}.ic-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:29px}.ic-button{display:inline-flex;justify-content:center;align-items:center;background:var(--green);color:white;min-height:47px;padding:12px 22px;font-size:13px;font-weight:600;text-decoration:none;border:1px solid var(--green);border-radius:4px}.ic-ghost{background:transparent;color:var(--green)}.ic-identity{font-size:11px;color:var(--muted);margin-top:25px}.ic-hero-photo{min-height:450px;overflow:hidden}.ic-hero-photo img{display:block;width:100%;height:100%;object-fit:cover;object-position:58% 50%}.ic-entry-strip{max-width:1324px;margin:38px auto 75px;display:grid;grid-template-columns:1fr 1fr;gap:60px;padding:29px 34px;background:white;border:1px solid var(--line);border-radius:6px;align-items:center}.ic-entry-strip h2{font-size:25px;margin:12px 0}.ic-entry-strip>div>p:last-child{color:var(--muted);font-size:13px;max-width:420px}.ic-address{padding:20px 22px;background:#eef3e5;border-radius:4px;display:grid;grid-template-columns:1fr auto;gap:7px 18px;align-items:center;min-width:0}.ic-address>span{font-size:11px;letter-spacing:1px;grid-column:1/-1;color:var(--muted)}.ic-address code{font-family:Consolas,monospace;font-size:15px;overflow-wrap:anywhere}.ic-address button{background:white;color:var(--green);border:1px solid #b5c0ad;border-radius:4px;font-size:12px;padding:9px 13px;white-space:nowrap}.ic-copy-result{grid-column:1/-1;font-size:11px;color:var(--muted);min-height:0}.ic-copy-result:empty{display:none}.ic-section,.ic-page-roles,.ic-guides-section,.ic-faq{max-width:1240px;margin:78px auto;padding:0 20px}.ic-section-heading{margin-bottom:30px}.ic-section-heading h2{font-size:37px;letter-spacing:-1px;margin:13px 0}.ic-section-heading>p:last-child{font-size:14px;color:var(--muted)}.ic-triage{display:grid;grid-template-columns:285px 1fr;gap:0;border-radius:7px;overflow:hidden;min-height:350px}.ic-problem-menu{background:#dfe8d0;padding:15px;display:flex;flex-direction:column;gap:10px;justify-content:center}.ic-problem-menu button{display:flex;align-items:center;gap:17px;text-align:left;border:0;background:transparent;border-radius:4px;padding:22px 16px;color:#456044;font-size:18px}.ic-problem-menu button span{font-size:11px;letter-spacing:1px}.ic-problem-menu button[aria-pressed=true]{background:var(--green);color:white}.ic-problem-panel{background:white;padding:35px 45px;display:flex;flex-direction:column;align-items:flex-start}.ic-problem-panel h3{font-size:28px;margin:14px 0 8px}.ic-problem-panel ol{margin:15px 0 23px;padding-left:22px;max-width:680px;color:#526458;font-size:15px}.ic-problem-panel li+li{margin-top:13px}.ic-problem-panel>a{font-size:13px;margin-top:auto}.ic-page-roles{display:grid;grid-template-columns:1fr 1.45fr;gap:65px;padding:46px 45px;background:var(--green);color:#fff;border-radius:7px}.ic-role-label h2{font-size:35px;line-height:1.35;margin-top:17px}.ic-page-roles dl{margin:0}.ic-page-roles dl>div{display:grid;grid-template-columns:95px 1fr;gap:25px;padding:17px 0;border-top:1px solid #496555}.ic-page-roles dl>div:first-child{border:0;padding-top:0}.ic-page-roles dt{font-size:15px}.ic-page-roles dd{font-size:13px;margin:0;color:#c4d4c7}.ic-guides{display:grid;grid-template-columns:1fr 1fr;gap:24px}.ic-guide-card{border-left:3px solid #9bb66d;padding:0 24px}.ic-guide-card>span{font-size:10px;letter-spacing:2px;color:var(--muted)}.ic-guide-card h3{font-size:23px;line-height:1.5;margin:13px 0}.ic-guide-card h3 a{text-decoration:none}.ic-guide-card p{font-size:13px;color:var(--muted)}.ic-faq{display:grid;grid-template-columns:1fr 1.4fr;gap:80px}.ic-faq>h2{font-size:26px;max-width:230px;line-height:1.5}.ic-faq details{border-bottom:1px solid var(--line);padding:17px 0}.ic-faq details:first-child{padding-top:0}.ic-faq summary{font-size:16px;font-weight:600;cursor:pointer}.ic-faq details p{font-size:14px;color:var(--muted);margin-top:13px}.ic-footer{background:#e4e9de;display:flex;justify-content:space-between;gap:40px;padding:45px max(5%,calc((100% - 1200px)/2));margin-top:70px}.ic-footer p{font-size:12px;color:var(--muted);margin:20px 0 15px}.ic-footer small{font-size:10px}.ic-footer nav{display:flex;gap:25px;font-size:12px;align-items:center}.ic-inner{max-width:1120px;margin:45px auto 80px;padding:0 30px}.ic-page-head{max-width:850px;margin-bottom:45px}.ic-page-head h1{font-size:44px;line-height:1.3;letter-spacing:-1px;margin:18px 0}.ic-page-head>p:last-child{font-size:16px;color:var(--muted)}.ic-address-section{border:1px solid var(--line);border-radius:6px;padding:28px;background:white;margin-bottom:45px}.ic-address-section h2{font-size:23px;margin-bottom:20px}.ic-address-section>p{font-size:12px;color:var(--muted);margin-top:16px}.ic-columns{display:grid;grid-template-columns:1fr 300px;gap:65px}.ic-columns h2{font-size:29px}.ic-checklist{list-style:none;padding:0;counter-reset:check}.ic-checklist>li{counter-increment:check;position:relative;padding:26px 0 25px 45px;border-bottom:1px solid var(--line)}.ic-checklist>li:before{content:counter(check,decimal-leading-zero);position:absolute;left:0;top:26px;font-size:12px;line-height:2;color:#64814c}.ic-checklist h3{font-size:22px;margin-bottom:12px}.ic-checklist p{font-size:15px;color:var(--muted)}.ic-note{background:#dfe8d0;border-radius:7px;padding:30px;height:max-content}.ic-note h2{font-size:24px;line-height:1.5}.ic-note p{font-size:14px;color:var(--muted);margin:20px 0}.ic-note>a:last-child{display:block;font-size:12px;margin-top:18px}.ic-source{margin-top:40px;padding:23px 25px;border-left:3px solid #99ae80;background:#ecf0e5}.ic-source h2{font-size:16px!important;margin:0 0 10px!important}.ic-source p{font-size:12px!important;color:var(--muted);line-height:1.8}.ic-source span,.ic-url{overflow-wrap:anywhere}.ic-help-list>section{display:grid;grid-template-columns:65px 1fr;gap:30px;padding:33px 35px;margin:18px 0;background:white;border-radius:5px}.ic-step-number{font-size:34px;line-height:1.2;font-weight:600;color:#9bb378}.ic-help-list h2{font-size:27px;margin:0 0 15px}.ic-answer{font-size:17px;font-weight:600}.ic-help-list li{font-size:15px;color:var(--muted);margin:10px 0}.ic-help-list section>div>p:last-child{font-size:14px;color:var(--muted);margin-top:19px}.ic-support-note{background:var(--green);color:white;padding:35px;margin-top:40px;border-radius:6px}.ic-support-note h2{font-size:26px;margin-bottom:16px}.ic-support-note p{font-size:15px;max-width:770px}.ic-support-note .ic-button{background:var(--lime);color:var(--green);border-color:var(--lime)}.ic-support-note .ic-ghost{background:transparent;color:white;border-color:#92aa98}.ic-article-main{max-width:1180px;margin:28px auto 80px;padding:0 30px}.ic-crumb{display:flex;gap:24px;font-size:11px;margin-bottom:25px}.ic-crumb>span{margin-left:auto;letter-spacing:2px}.ic-article>header{padding:45px;background:var(--green);color:white;border-radius:7px}.ic-article h1{font-size:40px;max-width:900px;line-height:1.35;margin:20px 0}.ic-article-answer{font-size:16px;max-width:850px;color:#d2decf;line-height:1.9}.ic-article time{display:block;font-size:11px;color:#b9cdbb;margin-top:20px}.ic-article-layout{display:grid;grid-template-columns:190px 1fr;gap:55px;margin:40px 0}.ic-article-layout>nav{display:flex;flex-direction:column;gap:4px;height:max-content;position:sticky;top:24px}.ic-article-layout>nav a{font-size:13px;text-decoration:none;padding:10px 15px;border-left:2px solid #c0cfb3}.ic-prose{min-width:0}.ic-prose>section{margin-bottom:42px}.ic-prose h2{font-size:27px;line-height:1.5;margin-bottom:20px}.ic-prose p{font-size:16px;line-height:1.95;color:#42574a}.ic-check-result{padding:25px 28px;margin-top:27px;background:#e1ebd4;border-radius:5px}.ic-check-result h3{font-size:19px;margin-bottom:12px}.ic-check-result p{font-size:15px}.ic-related{margin-top:33px;border-top:1px solid var(--line);padding-top:27px}.ic-related h2{font-size:20px}.ic-related a{display:block;font-size:14px;margin:15px 0}.ic-index-card{display:grid;grid-template-columns:80px 1fr;gap:20px;background:white;padding:35px;margin:20px 0;border-radius:6px}.ic-index-card>span{font-size:32px;color:#879e6b}.ic-index-card h2{font-size:27px;line-height:1.5}.ic-index-card p{font-size:15px;color:var(--muted);margin:15px 0 20px}.ic-index-card>div>a{font-size:13px}.ic-legal{max-width:850px}.ic-legal>h2{font-size:25px;margin:35px 0 18px}.ic-legal>p{font-size:15px;color:var(--muted)}
@media(max-width:1350px){.ic-entry-strip{margin-left:4%;margin-right:4%}}@media(max-width:760px){.ic-header{padding:21px 6%;gap:16px;align-items:flex-start}.ic-brand{font-size:24px}.ic-brand span{font-size:9px;letter-spacing:.5px}.ic-header nav{gap:14px;font-size:11px;flex-wrap:wrap;justify-content:flex-end;max-width:138px;padding-top:3px}.ic-hero{display:flex;flex-direction:column}.ic-hero-copy{padding:35px 7% 30px}.ic-kicker{font-size:9px;letter-spacing:1.8px}.ic-hero h1{font-size:42px;line-height:1.12;letter-spacing:-1.5px;margin:23px 0 20px}.ic-lead{font-size:14px;line-height:1.8}.ic-actions{gap:9px;margin-top:23px}.ic-button{padding:11px 16px;font-size:12px;min-height:45px}.ic-identity{font-size:10px;margin-top:20px}.ic-hero-photo{min-height:0;height:235px}.ic-hero-photo img{object-position:58% 50%}.ic-entry-strip{display:block;padding:24px 20px;margin:24px 5% 45px}.ic-entry-strip h2{font-size:24px;margin:12px 0}.ic-entry-strip>div>p:last-child{font-size:13px}.ic-address{padding:17px 15px;margin-top:23px;gap:10px}.ic-address>span{font-size:10px}.ic-address code{font-size:12px}.ic-address button{font-size:11px;padding:9px 10px}.ic-section,.ic-page-roles,.ic-guides-section,.ic-faq{margin:44px 0;padding:0 6%}.ic-section-heading{margin-bottom:24px}.ic-section-heading h2{font-size:30px;line-height:1.3;margin:12px 0}.ic-section-heading>p:last-child{font-size:13px}.ic-triage{display:block;min-height:0}.ic-problem-menu{flex-direction:row;padding:10px;gap:3px}.ic-problem-menu button{flex:1;display:block;text-align:center;font-size:12px;padding:14px 4px;white-space:normal}.ic-problem-menu button span{display:block;font-size:9px;margin-bottom:3px}.ic-problem-panel{padding:27px 23px;min-height:370px}.ic-problem-panel h3{font-size:24px;line-height:1.5;margin:12px 0}.ic-problem-panel ol{font-size:14px;margin:14px 0 23px;padding-left:18px}.ic-problem-panel li+li{margin-top:15px}.ic-problem-panel>a{font-size:12px}.ic-page-roles{display:block;margin:44px 5%;padding:30px 24px}.ic-role-label h2{font-size:29px;margin:15px 0 25px}.ic-role-label h2 br{display:none}.ic-page-roles dl>div{grid-template-columns:80px 1fr;gap:15px;padding:18px 0}.ic-page-roles dt{font-size:13px}.ic-page-roles dd{font-size:12px}.ic-guides{display:block}.ic-guide-card{padding:0 20px;margin:25px 0 34px}.ic-guide-card>span{font-size:9px}.ic-guide-card h3{font-size:22px;margin:12px 0}.ic-guide-card p{font-size:13px}.ic-faq{display:block}.ic-faq>h2{font-size:25px;max-width:none;margin-bottom:25px}.ic-faq summary{font-size:15px}.ic-faq details p{font-size:13px}.ic-footer{display:block;padding:32px 6%;margin-top:45px}.ic-footer nav{margin-top:25px;gap:24px;font-size:12px}.ic-footer p{font-size:11px;margin:18px 0 12px}.ic-inner{margin:28px 0 50px;padding:0 6%}.ic-page-head{margin-bottom:28px}.ic-page-head h1{font-size:31px;line-height:1.4;margin:15px 0}.ic-page-head>p:last-child{font-size:14px}.ic-address-section{padding:24px 18px;margin-bottom:30px}.ic-address-section h2{font-size:22px}.ic-address-section .ic-address{margin-top:0}.ic-address-section>p{font-size:12px}.ic-columns{display:block}.ic-columns h2{font-size:25px}.ic-checklist>li{padding:23px 0 23px 35px}.ic-checklist>li:before{top:23px;font-size:10px}.ic-checklist h3{font-size:21px}.ic-checklist p{font-size:14px}.ic-note{padding:27px 24px;margin-top:30px}.ic-note h2{font-size:23px}.ic-note p{font-size:13px}.ic-source{padding:22px 20px;margin-top:30px}.ic-source p{font-size:11px!important}.ic-help-list>section{grid-template-columns:36px 1fr;gap:15px;padding:25px 20px;margin:15px 0}.ic-step-number{font-size:25px}.ic-help-list h2{font-size:23px;line-height:1.4}.ic-answer{font-size:15px}.ic-help-list ol{padding-left:18px}.ic-help-list li{font-size:13px}.ic-help-list section>div>p:last-child{font-size:13px}.ic-support-note{padding:27px 22px;margin-top:30px}.ic-support-note h2{font-size:23px;line-height:1.5}.ic-support-note p{font-size:14px}.ic-article-main{margin:20px 0 50px;padding:0 6%}.ic-crumb{gap:18px;font-size:10px;margin-bottom:20px}.ic-article>header{padding:28px 23px}.ic-article h1{font-size:29px;line-height:1.45;margin:17px 0}.ic-article-answer{font-size:14px;line-height:1.9}.ic-article time{font-size:10px;margin-top:17px}.ic-article-layout{display:block;margin-top:25px}.ic-article-layout>nav{position:static;flex-direction:row;flex-wrap:wrap;gap:6px;margin-bottom:29px}.ic-article-layout>nav a{padding:7px 9px;border-left:0;border-bottom:2px solid #c0cfb3;font-size:11px}.ic-prose>section{margin-bottom:32px}.ic-prose h2{font-size:24px;line-height:1.5;margin-bottom:18px}.ic-prose p{font-size:15px;line-height:1.95}.ic-check-result{padding:23px 21px;margin-top:25px}.ic-check-result h3{font-size:18px}.ic-check-result p{font-size:14px}.ic-related h2{font-size:20px}.ic-related a{font-size:13px}.ic-index-card{grid-template-columns:35px 1fr;gap:15px;padding:24px 20px}.ic-index-card>span{font-size:25px}.ic-index-card h2{font-size:23px}.ic-index-card p{font-size:13px}.ic-index-card>div>a{font-size:12px}.ic-legal>h2{font-size:24px;margin:28px 0 15px}.ic-legal>p{font-size:14px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}