:root{--bg:#f6f0dc;--deep:#e6dcc0;--paper:#fbf7ea;--soft:#efe6ce;--ink:#18140a;--text:#2a2414;--muted:#5a4e30;--assist:#7a6e48;--gold:#6e5418;--honey:#c9a03a;--line:rgba(24,20,10,.12);--strong:rgba(110,84,24,.5);--shadow:0 14px 34px rgba(24,20,10,.09);--radius:18px;--top:120px}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg)}html.is-locked{overflow:hidden}body{margin:0;background:linear-gradient(180deg,var(--bg),#f8f3e5 38%,var(--bg));color:var(--text);font-family:Arial,"Microsoft YaHei",sans-serif;font-size:15px;line-height:1.76;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.wrap{width:min(960px,calc(100% - 32px));margin:0 auto}.site-top{position:fixed;z-index:50;left:0;right:0;top:0}.microbar{height:20px;background:var(--ink);color:var(--honey);font-size:12px}.microbar-inner{display:flex;align-items:center;justify-content:space-between;height:20px}.text-button{border:0;background:none;color:var(--honey);padding:0 4px;cursor:pointer}.brandbar{height:54px;background:rgba(251,247,234,.97);border-bottom:1px solid var(--strong);backdrop-filter:blur(8px)}.brandbar-inner{height:54px;display:flex;align-items:center;justify-content:space-between}.brand-link{display:flex;align-items:center;gap:10px;min-height:44px;font-weight:800}.brand-logo-slot,.footer-logo-slot{height:24px;display:flex;align-items:center}.brand-logo-slot img,.footer-logo-slot img,.drawer-brand img{height:24px;max-width:160px;object-fit:contain;object-position:center}.brand-logo-slot:has(img)+.brand-fallback{display:none}.brand-fallback{font-size:16px}.head-actions{display:flex;align-items:center;gap:8px}.head-app,.drawer-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:0 15px;font-size:14px}.head-app{background:linear-gradient(135deg,var(--ink),var(--honey));color:var(--paper)}.drawer-button{border:1px solid var(--gold);background:var(--paper);color:var(--ink);cursor:pointer}.quicknav{height:46px;background:rgba(251,247,234,.96);border-bottom:1px solid var(--line)}.quicknav-row{height:46px;display:flex;align-items:center;gap:28px}.quick-link{display:flex;align-items:center;gap:8px;font-size:13px;min-height:42px}.quick-mark{width:22px;height:14px;border:1px solid var(--gold);border-radius:10px 8px 10px 2px}.quick-link.is-current .quick-mark{background:var(--honey);border-color:var(--honey)}.page-main{padding-top:120px;min-height:70vh}.hero-new{padding:46px 0 24px}.hero-new-inner{background:radial-gradient(circle at 95% 0,rgba(201,160,58,.18),transparent 34%),var(--paper);border:1px solid var(--strong);border-radius:28px;padding:42px;box-shadow:var(--shadow)}.hero-kicker,.eyebrow{font-size:12px;letter-spacing:.18em;color:var(--gold);font-weight:700}.hero-new h1,.page-intro h1{font-size:24px;line-height:1.3;margin:10px 0 14px;color:var(--ink)}.hero-lead{font-size:18px;color:var(--gold);font-weight:700}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.primary-button,.secondary-button{min-height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;padding:0 18px;font-size:14px;margin-top:12px}.primary-button{background:linear-gradient(135deg,var(--ink),var(--honey));color:var(--paper)}.secondary-button{background:var(--paper);border:1px solid var(--gold);color:var(--ink)}.secondary-button.light{border-color:rgba(251,247,234,.55);color:var(--paper);background:rgba(255,255,255,.06)}.primary-button:hover,.secondary-button:hover,.head-app:hover,.quick-link:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible{outline:3px solid rgba(201,160,58,.55);outline-offset:3px}.section{padding:34px 0}.section-tight{padding:20px 0}.section h2,.section-tight h2,.page-intro h2{font-size:20px;line-height:1.4;color:var(--ink);margin:0 0 12px}.section h3,.section-tight h3{font-size:16px;line-height:1.45;color:var(--ink)}.section-no{font-size:12px;letter-spacing:.16em;color:var(--gold)}.image-slot{background:linear-gradient(135deg,var(--soft),var(--paper));border:1px dashed rgba(110,84,24,.24);border-radius:16px;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.image-wide{min-height:180px;max-height:260px}.image-vertical{width:240px;height:220px;max-width:100%}.image-app{height:300px;max-width:420px}.image-icon{width:78px;height:78px;margin:12px auto 0}.image-icon img{width:48px;height:48px}.banner-slot{height:200px;margin-bottom:24px}.feature-rail{display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:stretch}.rail-image{min-height:230px}.rail-copy{background:var(--paper);border-radius:var(--radius);padding:26px;border:1px solid var(--line)}.two-track{display:grid;grid-template-columns:1fr 1fr;gap:20px}.two-track article,.reading-cards article,.editorial-grid article,.help-grid article,.contact-grid article{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 8px 22px rgba(24,20,10,.05)}.index-panels{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}.index-panel{padding:24px;border-radius:var(--radius);background:var(--paper);border:1px solid var(--line)}.index-panel.dark{background:var(--ink);color:var(--paper);border-color:var(--ink)}.index-panel.dark h2{color:var(--honey)}.progress-board{background:var(--paper);border-radius:24px;border:1px solid var(--line);padding:26px}.board-head{display:flex;justify-content:space-between;gap:30px}.progress-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:18px 0}.progress-steps article{background:var(--soft);border-radius:14px;padding:18px}.status-strip{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.status-strip span{border:1px solid var(--gold);border-radius:999px;padding:6px 12px;font-size:13px}.app-story{display:grid;grid-template-columns:1fr .85fr 1fr;gap:20px;align-items:center}.app-story-copy{background:var(--paper);border-radius:var(--radius);padding:22px;border:1px solid var(--line)}.editorial{background:var(--ink);color:var(--paper);border-radius:24px;padding:28px}.editorial h2,.editorial h3{color:var(--honey)}.editorial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.editorial-grid article{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12);box-shadow:none}.faq-preview details{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin:10px 0}.faq-preview summary{cursor:pointer;font-weight:700;color:var(--ink)}.brand-close{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:24px}.page-intro{padding:38px 0 18px}.page-intro .wrap{background:var(--paper);border-left:4px solid var(--honey);border-radius:0 22px 22px 0;padding:28px 30px;box-shadow:var(--shadow)}.split-mag{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;align-items:start}.reading-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.long-copy{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px}.vertical-feature{display:grid;grid-template-columns:260px 1fr;gap:26px}.vertical-copy{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px}.stagger{display:grid;grid-template-columns:1fr 1fr;gap:18px}.stagger article{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px}.stagger article:nth-child(3){grid-column:1/-1;margin-left:18%}.frame-around{border:12px solid var(--deep);background:var(--paper);border-radius:28px;padding:24px}.frame-mid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center;margin:16px 0}.single-flow{background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:28px}.single-flow h2{margin-top:24px}.phase-timeline{display:grid;gap:16px}.phase-timeline article{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-left:8%}.phase-timeline article:nth-of-type(even){margin-left:0;margin-right:8%}.phase-timeline article span{font-size:12px;color:var(--gold);font-weight:700}.status-row{display:grid;grid-template-columns:110px 1fr;gap:18px;align-items:start;padding:18px 0;border-top:1px solid var(--line)}.status-row strong{display:inline-flex;justify-content:center;border:1px solid var(--gold);border-radius:999px;padding:6px 10px;color:var(--gold)}.note-stack{display:grid;gap:14px}.note-stack article{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.note-stack article:nth-child(even){margin-left:7%}.note-stack article:nth-child(odd){margin-right:7%}.method-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.method-steps article{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px}.method-steps article>span{position:absolute;right:16px;top:10px;font-size:34px;font-weight:800;color:rgba(110,84,24,.15)}.topic-list{display:grid;gap:14px}.topic-list article{display:grid;grid-template-columns:120px 180px 1fr;gap:20px;align-items:start;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:18px}.topic-list article span{font-size:11px;letter-spacing:.15em;color:var(--gold)}.topic-list article h2{margin:0}.center-intro{text-align:center;border-left:1px solid var(--line)!important;border-top:4px solid var(--honey)}.center-index{max-width:760px;text-align:center}.index-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}.index-cloud a{border:1px solid var(--gold);background:var(--paper);padding:10px 14px;border-radius:999px}.app-feature-page{display:grid;grid-template-columns:1fr .8fr;gap:22px;align-items:center}.app-feature-page .image-icon{grid-column:2}.legal-sections{display:grid;gap:14px}.legal-sections article{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px;border-left:4px solid var(--honey)}.help-grid,.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.faq-list{display:grid;gap:12px}.faq-list article{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:20px}.faq-list h2{font-size:17px}.about-flow{display:grid;grid-template-columns:1fr 1fr;gap:16px}.about-flow article{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px}.about-flow article:last-child{grid-column:1/-1}.site-footer{background:var(--ink);color:var(--bg);border-top:1px solid var(--honey);margin-top:34px;padding:34px 0 76px;font-size:13px}.footer-brand{display:flex;align-items:center;gap:10px;color:var(--honey);margin-bottom:22px}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-groups h2{font-size:14px;color:var(--honey);margin:0 0 10px}.footer-groups a{display:block;padding:4px 0;color:var(--bg)}.copyright-note{color:#d8ccb2;margin-top:24px;max-width:760px}.copyright{color:var(--honey)}.overlay{position:fixed;inset:0;background:rgba(24,20,10,.52);opacity:0;visibility:hidden;pointer-events:none;z-index:70;transition:.2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.site-drawer{position:fixed;z-index:80;right:16px;top:88px;width:min(300px,88vw);max-height:350px;background:var(--paper);border:1px solid var(--strong);border-radius:18px;box-shadow:0 24px 60px rgba(24,20,10,.28);transform:translateY(-18px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s;overflow:hidden}.site-drawer.is-open{transform:none;opacity:1;visibility:visible;pointer-events:auto}.drawer-top{height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 14px;border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:8px}.drawer-top button,.search-head button{border:1px solid var(--gold);background:var(--paper);border-radius:10px;min-height:40px;padding:0 12px}.drawer-scroll{max-height:292px;overflow:auto;padding:12px 14px 18px}.drawer-scroll h2{font-size:13px;color:var(--gold);margin:10px 0 6px}.drawer-scroll a{display:block;padding:8px 0;border-bottom:1px solid var(--line)}.drawer-scroll strong{display:block;font-size:14px}.drawer-scroll span{display:block;color:var(--muted);font-size:12px;line-height:1.5}.search-panel{position:fixed;z-index:81;left:50%;top:82px;transform:translateX(-50%) translateY(-15px);width:min(620px,calc(100% - 32px));opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-panel.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%)}.search-card{background:var(--paper);border:1px solid var(--strong);border-radius:18px;padding:20px;box-shadow:0 24px 60px rgba(24,20,10,.26)}.search-head{display:flex;align-items:center;justify-content:space-between}.search-head h2{font-size:18px;margin:0}.search-presets{display:flex;gap:8px;flex-wrap:wrap}.search-presets a{border:1px solid var(--gold);border-radius:999px;padding:8px 12px}.mobile-bottom{display:none}
@media(max-width:720px){:root{--top:74px}.quicknav{display:none}.page-main{padding-top:74px}.wrap{width:calc(100% - 32px)}.brandbar{height:54px}.brandbar-inner{height:54px}.head-actions{gap:5px}.head-app,.drawer-button{padding:0 10px;font-size:13px}.hero-new{padding-top:26px}.hero-new-inner{padding:26px 20px;border-radius:20px}.feature-rail,.two-track,.index-panels,.app-story,.brand-close,.split-mag,.vertical-feature,.frame-mid,.app-feature-page,.about-flow{grid-template-columns:1fr}.feature-rail .rail-image{min-height:180px}.image-vertical{width:100%;height:200px}.progress-steps,.editorial-grid,.reading-cards,.method-steps,.help-grid,.contact-grid{grid-template-columns:1fr}.board-head{display:block}.stagger{grid-template-columns:1fr}.stagger article:nth-child(3){grid-column:auto;margin-left:0}.phase-timeline article,.phase-timeline article:nth-of-type(even),.note-stack article:nth-child(even),.note-stack article:nth-child(odd){margin:0}.topic-list article{grid-template-columns:1fr;gap:6px}.app-feature-page .image-icon{grid-column:auto}.footer-groups{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:86px}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;z-index:60;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--paper);border-top:1px solid var(--strong)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px}.mobile-bottom a.is-current{background:var(--honey);color:var(--ink);font-weight:700}.site-drawer{top:78px;right:16px}.search-panel{inset:0;width:auto;transform:none;background:var(--ink);padding:82px 16px 70px}.search-panel.is-open{transform:none}.search-card{background:var(--ink);color:var(--paper);border-color:var(--honey);box-shadow:none}.search-head h2{color:var(--honey)}.search-head button{background:var(--ink);color:var(--honey);border-color:var(--honey)}.search-presets a{color:var(--honey);border-color:var(--honey)}.page-intro .wrap{padding:24px 20px}.footer-groups{gap:16px}.banner-slot{height:180px}}