:root{--bg:#F4FAFC;--surface:#fff;--soft:#E7F3F6;--title:#0E3A46;--text:#24505A;--muted:#4A7380;--quiet:#7A9AA4;--brand:#1A7F8F;--bright:#2BB3C4;--deep:#0F5B68;--pale:#D7EEF2;--line:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08);--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}body.modal-open{overflow:hidden}a{color:var(--deep);text-decoration:none}a:hover{color:var(--brand)}a:focus-visible,button:focus-visible{outline:3px solid rgba(43,179,196,.42);outline-offset:3px}button{font:inherit}.site-header{position:fixed;z-index:70;left:0;right:0;top:0}.mist-line{height:20px;background:var(--title);color:#fff;font-size:12px}.top-wrap{width:min(var(--max),calc(100% - 32px));margin:0 auto}.mist-line .top-wrap{height:20px;display:flex;align-items:center;justify-content:space-between}.plain-button{border:0;background:transparent;color:#fff;padding:0 4px;cursor:pointer;min-height:20px}.pier-bar{height:62px;background:#fff;border-bottom:1px solid var(--line)}.pier-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-link{justify-self:start;display:flex;align-items:center;min-height:44px}.brand-logo{height:34px;max-width:190px;object-fit:contain;object-position:left center}.brand-text{font-weight:800;font-size:20px;color:var(--title)}.drawer-open{justify-self:center;min-height:44px;padding:8px 18px;border:1px solid var(--line);border-radius:12px;background:var(--soft);color:var(--deep);font-weight:700;cursor:pointer}.app-link{justify-self:end;min-height:44px;display:inline-flex;align-items:center;padding:8px 16px;border-radius:12px;background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;font-weight:700}.app-link:hover{color:#fff;filter:brightness(.97)}.shell-tabs{height:42px;background:var(--pale);border-bottom:1px solid var(--line)}.tab-inner{height:100%;display:flex;align-items:center;gap:6px}.tab-inner a{display:inline-flex;align-items:center;min-height:32px;padding:4px 12px;border-radius:8px;color:var(--deep);font-weight:700}.tab-inner a.active{background:var(--brand);color:#fff}.site-main{padding-top:144px;min-height:60vh}.container{width:min(var(--max),calc(100% - 32px));margin:0 auto}.section{padding:42px 0}.section.tight{padding:26px 0}.surface{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.hero{padding:24px}.hero-media,.media-slot{background:linear-gradient(180deg,#edf8fa,#fff);border:1px solid var(--line);border-radius:16px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero-media{max-height:300px;aspect-ratio:16/7}.hero-media img{width:100%;height:100%;max-height:300px;object-fit:contain;object-position:center}.media-slot{height:210px}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.media-slot.tall{height:320px}.media-slot.tall img{max-height:420px}.placeholder-title{font-size:26px;color:var(--deep);font-weight:800}.eyebrow{display:inline-block;margin-top:18px;color:var(--brand);font-weight:800;letter-spacing:.08em}.hero h1,.page-hero h1{font-size:clamp(28px,4vw,32px);line-height:1.3;color:var(--title);margin:10px 0 14px}.hero p,.page-hero p{max-width:850px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:10px 18px;border-radius:12px;border:1px solid var(--line);font-weight:800}.btn.primary{background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff}.btn.secondary{background:#fff;color:var(--deep)}.section-title{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}.section-title h2{margin:0;color:var(--title);font-size:24px;line-height:1.35}.section-title p{margin:0;color:var(--muted);max-width:660px}.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;min-height:128px}.step-item strong{display:block;color:var(--title);font-size:17px;margin-bottom:6px}.step-item:nth-child(odd){border-top:4px solid var(--bright)}.step-item:nth-child(even){border-top:4px solid var(--deep)}.pebble-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.pebble{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}.pebble .content{padding:18px}.pebble h3{margin:0 0 8px;color:var(--title)}.numbered{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center}.number-list{display:grid;gap:10px}.number-list a{display:grid;grid-template-columns:52px 1fr;gap:12px;align-items:center;padding:12px;border-bottom:1px solid var(--line)}.number-list b{font-size:24px;color:var(--brand)}.four-notes{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.note-card{background:var(--soft);border-radius:14px;padding:18px;border:1px solid var(--line)}.note-card h3{margin-top:0;color:var(--title)}.book-list{display:grid;gap:12px}.book-row{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:start}.book-row .label{font-weight:800;color:var(--brand)}.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.gallery-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}.gallery-card p{padding:0 14px 16px;margin:12px 0 0}.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.path-card{background:var(--title);color:#fff;border-radius:16px;padding:22px}.path-card h3{margin-top:0;color:#fff}.path-card a{color:#fff;text-decoration:underline;text-underline-offset:4px}.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.rich-text{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow)}.rich-text h2,.rich-text h3{color:var(--title)}.rich-text h2{font-size:24px;margin-top:34px}.rich-text h2:first-child{margin-top:0}.rich-text p{margin:0 0 16px}.rich-text ul{padding-left:1.2em}.rich-text li{margin-bottom:8px}.page-hero{background:linear-gradient(180deg,#e7f3f6,#f4fafc);border-bottom:1px solid var(--line);padding:36px 0}.page-kicker{color:var(--brand);font-weight:800;letter-spacing:.08em}.page-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px}.aside-card{position:sticky;top:166px;align-self:start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.aside-card h2{font-size:18px;color:var(--title);margin-top:0}.aside-card a{display:block;padding:8px 0;border-bottom:1px solid var(--line)}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.faq-item h2{font-size:18px;margin:0 0 8px;color:var(--title)}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.feature{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.feature h2,.feature h3{color:var(--title);margin-top:0}.site-footer{background:var(--title);color:#D4E8EC;padding:48px 0 72px}.footer-inner{width:min(var(--max),calc(100% - 32px));margin:0 auto}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.footer-logo{height:32px;max-width:180px;object-fit:contain;filter:brightness(0) invert(1)}.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{color:#fff}.footer-brand span{font-size:12px;letter-spacing:.12em}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-grid h2{font-size:16px;color:#fff;margin-top:0}.footer-grid a{display:block;color:#D4E8EC;padding:4px 0}.footer-note{border-top:1px solid rgba(255,255,255,.14);padding-top:22px;margin-top:24px}.copyright{color:#9fc4cb;font-size:14px}.overlay{position:fixed;inset:0;background:rgba(14,58,70,.42);z-index:79;opacity:0;visibility:hidden;pointer-events:none;transition:.22s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.tide-drawer{position:fixed;right:0;top:0;bottom:0;width:min(410px,86vw);background:var(--bg);z-index:81;transform:translateX(102%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility .25s;overflow-y:auto;padding:18px}.tide-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--title)}.drawer-brand img{height:30px;max-width:160px;object-fit:contain}.drawer-close,.search-close{min-height:44px;border:1px solid var(--line);background:#fff;color:var(--deep);border-radius:12px;padding:8px 14px;cursor:pointer}.drawer-stack{display:grid;gap:12px}.wave-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow)}.wave-card h2{font-size:16px;color:var(--brand);margin:0 0 10px}.wave-card a{display:block;padding:9px 0;border-top:1px solid var(--line)}.wave-card a:first-of-type{border-top:0}.wave-card strong{display:block;color:var(--title)}.wave-card span{display:block;color:var(--muted);font-size:13px;line-height:1.55}.search-panel{position:fixed;left:0;right:0;top:82px;z-index:82;visibility:hidden;opacity:0;pointer-events:none;transform:translateY(-10px);transition:.2s}.search-panel.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:translateY(0)}.search-card{width:min(760px,calc(100% - 32px));margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:0 0 18px 18px;padding:22px;box-shadow:var(--shadow)}.search-top{display:flex;justify-content:space-between;align-items:center;gap:18px}.search-top h2{margin:0;color:var(--title);font-size:20px}.fake-search{margin:16px 0;background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:12px 14px;color:var(--muted)}.search-presets{display:flex;flex-wrap:wrap;gap:10px}.search-presets a{background:var(--pale);color:var(--deep);padding:8px 12px;border-radius:10px}.mobile-bottom{display:none}
@media (max-width:900px){.step-grid,.pebble-grid,.four-notes,.gallery-grid{grid-template-columns:repeat(2,1fr)}.numbered,.split,.page-layout{grid-template-columns:1fr}.path-grid{grid-template-columns:1fr}.aside-card{position:static}.feature-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:680px){.site-main{padding-top:102px;padding-bottom:64px}.shell-tabs{display:none}.top-wrap,.container,.footer-inner{width:min(100% - 32px,var(--max))}.pier-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand-logo{height:30px;max-width:125px}.brand-text{font-size:18px}.drawer-open,.app-link{padding:7px 10px;min-width:64px}.search-panel{top:82px}.search-card{width:calc(100% - 16px);background:var(--soft);border-radius:0 0 16px 16px}.section{padding:30px 0}.hero{padding:16px}.hero-media{aspect-ratio:3/2}.step-grid,.pebble-grid,.four-notes,.gallery-grid{grid-template-columns:1fr}.book-row{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:16px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:60;display:grid;grid-template-columns:repeat(5,1fr);height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;color:var(--deep);font-size:13px;font-weight:700}.mobile-bottom a.active{background:var(--brand);color:#fff}.site-footer{padding-bottom:90px}.mist-line .top-wrap{font-size:11px}.brand-mini{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tide-drawer{width:86vw;padding-bottom:calc(18px + env(safe-area-inset-bottom))}.media-slot{height:190px}}