:root{--oa-sand:#f5f1e8;--oa-white:#ffffff;--oa-teal:#0f6b63;--oa-teal-dark:#0a504a;--oa-teal-soft:#ddefea;--oa-char:#1f2a29;--oa-mute:#57625e;--oa-line:#e3dccd;--oa-gold:#e3b55b;--oa-gold-soft:#fbf0d6;--oa-font:"PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", Roboto, sans-serif}body{color:var(--oa-char);background:var(--oa-sand);font-family:var(--oa-font);font-size:16px;line-height:1.75}a{color:var(--oa-teal)}:focus-visible{outline:3px solid var(--oa-gold);outline-offset:2px}.oa-kicker{color:var(--oa-teal);font-size:14px;font-weight:700}.oa-kicker-light{color:#d2f1ea}.oa-small{margin-top:12px;color:var(--oa-mute);font-size:14px}.oa-empty{padding:16px 18px;color:var(--oa-mute);background:var(--oa-sand);border-radius:12px}.oa-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;color:var(--oa-white);background:var(--oa-teal);border:1.5px solid var(--oa-teal);border-radius:12px;font-size:16px;font-weight:700;text-decoration:none;white-space:nowrap}.oa-btn:hover{background:var(--oa-teal-dark);border-color:var(--oa-teal-dark)}.oa-btn-sm{min-height:44px;padding:0 16px;font-size:15px}.oa-btn-soft{color:var(--oa-teal);background:var(--oa-white);border-color:#b9d8d1}.oa-btn-soft:hover{color:var(--oa-teal-dark);background:var(--oa-teal-soft);border-color:var(--oa-teal)}.oa-pair{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.oa-arrow{display:inline-flex;align-items:center;gap:6px;min-height:44px;margin-top:10px;font-weight:700}.oa-arrow::after{content:"›";font-size:20px}.oa-arrow-light{color:var(--oa-white)}.oa-top{background:var(--oa-white);border-bottom:3px solid var(--oa-teal)}.oa-top-in{position:relative;display:flex;align-items:center;gap:28px;max-width:1200px;min-height:72px;margin:0 auto;padding:0 28px}.oa-home{min-height:44px;display:inline-flex;align-items:center;gap:10px;color:var(--oa-char);font-size:19px;font-weight:800;text-decoration:none}.oa-palm{display:inline-grid;place-items:center;width:34px;height:34px;color:var(--oa-white);background:var(--oa-teal);border-radius:50% 50% 50% 8px;font-size:15px}.oa-nav{display:flex;flex:1;gap:2px}.oa-nav-a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;color:var(--oa-char);border-radius:10px;font-size:15px;text-decoration:none}.oa-nav-a:hover,.oa-nav-a[aria-current]{color:var(--oa-teal);background:var(--oa-teal-soft)}.oa-top-keys{display:flex;align-items:center;gap:8px}.oa-menu{display:none}.oa-menu > summary{display:flex;align-items:center;min-height:44px;padding:0 16px;color:var(--oa-teal);background:var(--oa-teal-soft);border-radius:12px;font-weight:700}.oa-menu-list{position:absolute;top:100%;right:16px;left:16px;z-index:30;display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:14px;background:var(--oa-white);border:1px solid var(--oa-line);border-radius:16px;box-shadow:0 18px 36px rgba(31, 42, 41, .14)}.oa-notice{background:var(--oa-gold-soft);border-bottom:1px solid #f0dfb3}.oa-notice-in{display:flex;gap:12px;max-width:1200px;margin:0 auto;padding:12px 28px}.oa-notice b{flex:none;color:#7a5a12}.oa-welcome{display:grid;grid-template-columns:minmax(0, 1.15fr) minmax(0, .85fr);gap:48px;align-items:center;max-width:1200px;margin:0 auto;padding:60px 28px 40px}.oa-welcome h1{margin-top:10px;font-size:36px;line-height:1.3}.oa-say{margin-top:8px;color:var(--oa-teal-dark);font-size:21px;font-weight:700}.oa-lede{margin-top:14px;color:var(--oa-mute);font-size:17px}.oa-entry{margin-top:26px;padding:20px 22px;background:var(--oa-white);border:1.5px solid var(--oa-line);border-radius:18px;box-shadow:0 16px 34px rgba(31, 42, 41, .07)}.oa-entry h2{display:flex;align-items:center;gap:10px;padding-bottom:12px;font-size:18px;border-bottom:1px solid var(--oa-line)}.oa-entry h2::before{content:"";width:14px;height:14px;border:2.5px solid var(--oa-teal);border-radius:50%;box-shadow:6px 6px 0 -4px var(--oa-teal)}.oa-entry ul{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;margin:6px 0 0;padding:0;list-style:none}.oa-entry a{display:flex;align-items:center;justify-content:space-between;min-height:46px;color:var(--oa-char);text-decoration:none;border-bottom:1px dashed var(--oa-line)}.oa-entry a::after{content:"›";color:var(--oa-teal);font-size:20px}.oa-entry a:hover{color:var(--oa-teal)}.oa-scene svg{width:100%;height:auto}.oa-desk{display:grid;grid-template-columns:repeat(12, minmax(0, 1fr));gap:20px;max-width:1200px;margin:0 auto;padding:10px 28px 90px}.oa-panel{grid-column:span 6;padding:30px 32px;background:var(--oa-white);border:1px solid var(--oa-line);border-radius:20px}.oa-panel-wide{grid-column:1 / -1}.oa-panel-flow{grid-column:span 7}.oa-panel-status{grid-column:span 5;background:var(--oa-teal-soft);border-color:#c4e2db}.oa-panel-h{font-size:24px;line-height:1.4}.oa-panel-intro{margin-top:4px;color:var(--oa-mute)}.oa-facts{display:grid;grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));gap:16px}.oa-facts > div{padding-left:16px;border-left:4px solid var(--oa-gold)}.oa-facts dd{color:var(--oa-mute)}.oa-flow{display:grid;gap:14px;margin:18px 0 0;padding:0;list-style:none}.oa-flow li{display:grid;gap:14px;grid-template-columns:36px minmax(0, 1fr)}.oa-flow li > span{width:36px;height:36px;display:grid;place-items:center;color:var(--oa-teal);background:var(--oa-teal-soft);border-radius:50%;font-weight:800}.oa-flow h3{font-size:18px}.oa-flow p{color:var(--oa-mute);font-size:15px}.oa-status{display:grid;gap:10px;margin:18px 0 0;padding:0;list-style:none}.oa-status li{display:grid;grid-template-columns:70px minmax(0, 1fr);gap:12px;align-items:center;padding:12px 16px;background:var(--oa-white);border-radius:12px}.oa-status b::before{content:"";display:inline-block;width:9px;height:9px;margin-right:8px;background:var(--oa-teal);border-radius:50%;vertical-align:2px}.oa-status span{color:var(--oa-mute);font-size:15px}.oa-fold{display:grid;gap:10px;margin-top:20px}.oa-fold-row{border:1.5px solid var(--oa-line);border-radius:14px}.oa-fold-pick{border-color:var(--oa-teal)}.oa-fold-row > summary{display:grid;grid-template-columns:minmax(0, 1.2fr) minmax(0, .8fr) minmax(0, 1fr) 30px;gap:16px;align-items:center;min-height:72px;padding:10px 20px}.oa-fold-name{display:flex;flex-wrap:wrap;align-items:center;gap:4px 10px;font-size:18px}.oa-fold-name em{padding:1px 10px;color:var(--oa-white);background:var(--oa-teal);border-radius:999px;font-size:13px;font-style:normal;font-weight:700}.oa-fold-price{font-size:24px;font-weight:800}.oa-fold-price small{color:var(--oa-mute);font-size:14px;font-weight:400}.oa-fold-glance{color:var(--oa-mute);font-size:15px}.oa-fold-key{justify-self:end;width:10px;height:10px;border-right:2px solid var(--oa-teal);border-bottom:2px solid var(--oa-teal);transform:rotate(45deg)}.oa-fold-row[open] .oa-fold-key{transform:rotate(-135deg)}.oa-fold-body{display:grid;grid-template-columns:minmax(0, 1.4fr) minmax(0, 1fr) auto;gap:18px 28px;align-items:center;margin:0 20px;padding:18px 0 20px;border-top:1px dashed var(--oa-line)}.oa-fold-specs{display:grid;grid-template-columns:repeat(3, minmax(0, 1fr));gap:12px}.oa-fold-specs dd{color:var(--oa-mute)}.oa-fold-note{color:var(--oa-mute);font-size:15px}.oa-mine{display:grid;grid-template-columns:repeat(2, minmax(0, 1fr));gap:12px;margin:18px 0 0;padding:0;list-style:none}.oa-mine-row{display:grid;grid-template-columns:44px minmax(0, 1fr) auto;gap:14px;align-items:center;padding:12px 16px;border:1.5px solid var(--oa-line);border-radius:14px}.oa-mine-icon{display:grid;place-items:center;width:44px;height:44px;color:var(--oa-teal);background:var(--oa-teal-soft);border-radius:12px}.oa-mine-icon svg{width:22px;height:22px}.oa-mine-name{display:grid;font-weight:700}.oa-mine-name small{display:none;color:var(--oa-teal);font-size:13px}li.oa-mine-row[data-v4-current]{order:-1;grid-column:1 / -1;padding:18px 20px;background:var(--oa-teal-soft);border-color:var(--oa-teal)}li.oa-mine-row[data-v4-current] .oa-mine-name{font-size:20px}li.oa-mine-row[data-v4-current] .oa-mine-name small{display:block}.oa-panel-teal{color:#e2f3ef;background:var(--oa-teal);border-color:var(--oa-teal)}.oa-panel-teal .oa-panel-h{margin:6px 0 12px;color:var(--oa-white)}.oa-panel-teal .v4-rich p + p{margin-top:10px}.oa-tickets{display:grid;gap:12px;margin:18px 0 0;padding:0;list-style:none}.oa-tickets li{position:relative;padding:14px 16px 14px 18px;background:var(--oa-sand);border-left:4px solid var(--oa-teal);border-radius:0 12px 12px 0}.oa-ticket-q{padding-right:64px;font-weight:700}.oa-ticket-a{margin-top:4px;color:var(--oa-mute);font-size:15px}.oa-ticket-state{position:absolute;top:14px;right:14px;padding:0 8px;color:var(--oa-teal);background:var(--oa-white);border-radius:999px;font-size:12px;font-weight:700}.oa-panel-close{text-align:center;background:linear-gradient(180deg, var(--oa-white), var(--oa-gold-soft))}.oa-panel-close > p:not(.oa-pair){color:var(--oa-mute)}.oa-panel-close .oa-pair{justify-content:center}.oa-band{background:var(--oa-white);border-bottom:1px solid var(--oa-line)}.oa-band-in{max-width:1200px;margin:0 auto;padding:44px 28px 34px}.oa-crumbs{display:flex;gap:8px;color:var(--oa-mute);font-size:14px}.oa-crumbs a{display:inline-flex;align-items:center;min-height:44px}.oa-crumbs span{display:inline-flex;align-items:center}.oa-band h1{font-size:34px}.oa-article-wrap{display:grid;grid-template-columns:minmax(0, 1fr) 280px;gap:20px;align-items:start;max-width:1200px;margin:0 auto;padding:30px 28px 90px}.oa-article-solo{grid-template-columns:minmax(0, 1fr)}.oa-article-wrap > .oa-panel{grid-column:auto}.oa-article{font-size:17px}.oa-article > .v4-rich{margin-bottom:22px}.oa-sec + .oa-sec{margin-top:26px}.oa-sec :is(h2,h3,h4){margin-bottom:6px;font-size:21px;line-height:1.45}.oa-sec-group{padding-top:18px;border-top:2px solid var(--oa-teal-soft)}.oa-sec-group :is(h2,h3){color:var(--oa-teal-dark);font-size:24px}.oa-sec-sub :is(h3,h4){font-size:18px}.oa-sec .v4-rich :is(p,ul,ol) + :is(p,ul,ol){margin-top:10px}.oa-toc{position:sticky;top:20px;padding:22px}.oa-toc h2{font-size:16px}.oa-toc ul{margin:8px 0 0;padding:0;list-style:none}.oa-toc a{display:flex;align-items:center;min-height:44px;color:var(--oa-char);font-size:15px;text-decoration:none;border-bottom:1px solid var(--oa-line)}.oa-toc a:hover{color:var(--oa-teal)}.oa-toc-group a{font-weight:700}.oa-toc-item a{padding-left:12px}.oa-then{margin-top:30px;font-size:20px}.oa-then-list{margin:8px 0 0;padding-left:22px}.oa-unsolved{grid-column:1 / -1;background:var(--oa-gold-soft);border-color:#f0dfb3}.oa-unsolved h2{font-size:20px}.oa-unsolved > p{margin-top:4px;color:var(--oa-mute)}.oa-unsolved nav{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.oa-chip{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;color:var(--oa-char);background:var(--oa-white);border-radius:999px;text-decoration:none}.oa-chip:hover{color:var(--oa-teal)}.oa-gate{display:grid;place-items:center;min-height:74vh;padding:56px 20px}.oa-gate-ticket{width:min(540px, 100%)}.oa-gate-pill{display:inline-block;padding:2px 12px;color:var(--oa-teal);background:var(--oa-teal-soft);border-radius:999px;font-size:14px;font-weight:700}.oa-gate-ticket h1{margin-top:12px;font-size:28px}.oa-gate-subject{display:grid;margin-top:14px;padding:12px 14px;background:var(--oa-sand);border-radius:12px;overflow-wrap:anywhere}.oa-gate-subject span{color:var(--oa-mute);font-size:14px}.oa-gate-bar{display:grid;gap:10px;margin-top:20px;--v4-bar-h:8px;--v4-bar-track:var(--oa-teal-soft);--v4-bar-fill:var(--oa-teal)}.oa-gate-bar button{justify-self:start}.oa-foot{color:#d6e2df;background:var(--oa-char)}.oa-foot-in{display:grid;grid-template-columns:minmax(0, 1.1fr) minmax(0, 1fr);gap:48px;max-width:1200px;margin:0 auto;padding:56px 28px 34px}.oa-contact{padding:30px 32px;color:var(--oa-char);background:var(--oa-white);border-top:6px solid var(--oa-teal);border-radius:20px}.oa-contact h2{font-size:22px}.oa-contact-hint{margin:6px 0 14px;color:var(--oa-mute);font-size:15px}.oa-contact-keys{display:flex;flex-wrap:wrap;gap:0 20px;margin-top:8px}.oa-contact-keys a{display:inline-flex;align-items:center;min-height:44px;font-weight:700}.oa-home-foot{color:var(--oa-white)}.oa-foot-about{margin:10px 0 22px;font-size:14px}.oa-foot-side h2{margin-bottom:6px;color:var(--oa-gold);font-size:14px}.oa-foot-nav{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0 18px}.oa-foot-a{color:#f1f6f5;text-decoration:none}.oa-contact .oa-foot-a{color:var(--oa-teal)}.oa-foot-a:hover{text-decoration:underline}.oa-foot-friends{display:flex;flex-wrap:wrap;align-items:center;gap:0 18px;margin-top:14px;font-size:14px}.oa-foot-friends a{display:inline-flex;align-items:center;min-height:44px}.oa-foot-imprint{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 20px;max-width:1144px;margin:0 auto;padding:18px 0 28px;color:#9fb0ac;font-size:14px;border-top:1px solid #34413f}@media (max-width: 1080px){.oa-nav,.oa-top-keys .oa-nav-a{display:none}.oa-top-in{justify-content:space-between}.oa-menu{display:block}.oa-welcome{grid-template-columns:1fr}.oa-scene{display:none}.oa-panel,.oa-panel-flow,.oa-panel-status{grid-column:1 / -1}.oa-article-wrap{grid-template-columns:minmax(0, 1fr)}.oa-toc{position:static;grid-row:1}}@media (max-width: 680px){.oa-top-in{gap:10px;padding:0 16px}.oa-home{font-size:17px}.oa-notice-in{padding:12px 16px}.oa-welcome{padding:40px 16px 30px}.oa-welcome h1{font-size:28px}.oa-say{font-size:19px}.oa-entry ul{grid-template-columns:1fr}.oa-desk{gap:14px;padding:0 12px 70px}.oa-panel{padding:24px 18px;border-radius:16px}.oa-panel-h{font-size:21px}.oa-fold-row > summary{grid-template-columns:minmax(0, 1fr) auto 24px;gap:4px 12px;padding:12px 14px}.oa-fold-glance{grid-column:1 / 3;grid-row:2}.oa-fold-key{grid-column:3;grid-row:1 / 3}.oa-fold-body{grid-template-columns:1fr;margin:0 14px}.oa-fold-specs{grid-template-columns:1fr 1fr}.oa-mine{grid-template-columns:minmax(0, 1fr)}.oa-band-in,.oa-article-wrap{padding-right:12px;padding-left:12px}.oa-band-in{padding-right:16px;padding-left:16px}.oa-band h1{font-size:28px}.oa-foot-in{grid-template-columns:1fr;gap:28px;padding:40px 16px 26px}.oa-contact{padding:24px 20px}.oa-foot-nav{grid-template-columns:1fr 1fr}.oa-foot-imprint{margin:0 16px}}.v4-oasis .oa-top-keys{display:flex;flex-wrap:wrap;align-items:center;gap:10px}@media (min-width:1200px){.v4-oasis .oa-top-in{display:grid;grid-template-areas:"brand account" "nav nav";grid-template-columns:1fr auto;gap:12px 24px;height:auto;min-height:0;padding-block:20px 12px}.v4-oasis .oa-home{grid-area:brand;margin:0;font-size:24px}.v4-oasis .oa-top-in [data-v4-original-nav]{grid-area:nav;margin:0;min-width:0;display:grid;grid-template-columns:repeat(5,1fr);gap:8px;width:100%}.v4-oasis .oa-top-keys{grid-area:account;justify-self:end;margin:0}}.v4-oasis .oa-top-in [data-v4-original-nav] a{justify-content:center;background:#e8f4ef;border-radius:2px;border-bottom:2px solid #147064}.v4-oasis{--v4-notice-bg:rgb(251, 240, 214);--v4-notice-ink:rgb(31, 42, 41)}.v4.v4-oasis .v4-top-announcement-inner{width:100%;max-width:none;padding-left:0;padding-right:0}.v4.v4-oasis .v4-top-announcement-inner{max-width:1200px;padding-left:28px;padding-right:28px}@media (max-width: 680px){.v4.v4-oasis .v4-top-announcement-inner{padding-left:16px;padding-right:16px}}