*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F4FAFC;color:#24505A;font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font:inherit}.site-header{position:fixed;inset:0 0 auto 0;z-index:1000}.header-inner{width:min(1180px,calc(100% - 32px));margin:auto}.mist-line{height:20px;background:#0F5B68;color:#fff}.mist-inner{height:20px;display:flex;align-items:center;justify-content:space-between;font-size:12px}.brand-mini{font-weight:700;letter-spacing:.04em}.icon-button{border:0;background:transparent;color:#fff;min-height:20px;padding:0 6px;cursor:pointer}.dock-bar{height:62px;background:#fff;border-bottom:1px solid rgba(26,127,143,.16)}.dock-inner{height:62px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-main{justify-self:start;display:flex;align-items:center;min-height:44px;font-weight:800;color:#0E3A46}.brand-main img{height:34px;width:auto;object-fit:contain}.dock-action{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(26,127,143,.2);border-radius:10px;padding:0 18px;background:#fff;color:#0F5B68;font-weight:700;cursor:pointer}.drawer-open{justify-self:center}.app-link{justify-self:end;background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;border-color:transparent}.shell-tabs{height:42px;background:#D7EEF2;border-bottom:1px solid rgba(26,127,143,.16)}.tabs-inner{height:42px;display:flex;align-items:center;gap:8px}.tabs-inner a{padding:7px 12px;border-radius:8px;color:#0E3A46;line-height:1}.tabs-inner a.active{background:#1A7F8F;color:#fff}.site-main{padding-top:124px;min-height:60vh}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.section{padding:46px 0}.section-tight{padding:28px 0}.panel{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:16px;box-shadow:0 14px 34px rgba(14,58,70,.08);padding:28px}.eyebrow{font-size:13px;font-weight:800;color:#1A7F8F;letter-spacing:.08em;margin:0 0 8px}.hero h1,.page-hero h1{margin:0;color:#0E3A46;font-size:clamp(28px,4vw,32px);line-height:1.25}.lead{font-size:17px;color:#4A7380;max-width:760px}.hero-image,.content-image{background:#D7EEF2;border-radius:18px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero-image{width:100%;max-height:300px;min-height:180px;margin-bottom:24px}.hero-image img{width:100%;height:100%;max-height:300px;object-fit:contain;object-position:center}.content-image{min-height:190px;height:220px}.content-image img{width:100%;height:100%;object-fit:contain;object-position:center}.app-image{height:420px;max-height:420px}.app-image img{height:100%;object-fit:contain}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:10px;font-weight:800;border:1px solid rgba(26,127,143,.22)}.btn-primary{background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;border-color:transparent}.btn-secondary{background:#fff;color:#0F5B68}.step-grid,.card-grid,.four-grid,.three-grid,.two-grid{display:grid;gap:18px}.step-grid,.four-grid{grid-template-columns:repeat(4,1fr)}.three-grid{grid-template-columns:repeat(3,1fr)}.two-grid{grid-template-columns:repeat(2,1fr)}.step-card,.pebble,.info-card,.article-card,.faq-item{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:14px;padding:20px}.step-card strong,.pebble h3,.info-card h3,.article-card h2,.faq-item h2{color:#0E3A46}.step-mark{display:inline-block;background:#1A7F8F;color:#fff;border-radius:8px;padding:3px 8px;font-size:12px;font-weight:800;margin-bottom:10px}.step-card:nth-child(even) .step-mark{background:#0F5B68}.number-list{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}.number-list a{background:#E7F3F6;border-radius:12px;padding:16px;color:#0E3A46}.number-list b{display:block;color:#1A7F8F;font-size:12px;letter-spacing:.08em}.section-title{margin:0 0 10px;color:#0E3A46;font-size:26px}.section-desc{max-width:780px;margin:0 0 24px;color:#4A7380}.split{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center}.list-clean{list-style:none;margin:0;padding:0}.list-clean li{padding:14px 0;border-bottom:1px solid rgba(26,127,143,.13)}.list-clean li:last-child{border-bottom:0}.tag{display:inline-block;background:#D7EEF2;color:#0E3A46;padding:4px 9px;border-radius:8px;font-size:12px;font-weight:800}.long-copy p{margin:0 0 16px}.page-hero{padding:44px 0 22px}.page-hero .panel{background:linear-gradient(180deg,#fff,#F4FAFC)}.page-hero p{max-width:850px}.index-strip{display:grid;gap:12px}.index-row{display:grid;grid-template-columns:70px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:14px;padding:18px}.index-row .num{font-weight:900;color:#1A7F8F}.index-row strong{color:#0E3A46}.index-row a{font-weight:800;color:#0F5B68}.gallery-lane{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.gallery-piece{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:16px;padding:16px}.gallery-piece .content-image{height:200px;margin-bottom:14px}.soft-band{background:#E7F3F6}.site-footer{background:#0E3A46;color:#D4E8EC;padding:42px 0 calc(42px + env(safe-area-inset-bottom))}.footer-wrap{width:min(1180px,calc(100% - 32px));margin:auto}.footer-brand{display:flex;gap:14px;align-items:center;margin-bottom:28px}.footer-brand img{height:34px;width:auto;object-fit:contain}.footer-brand strong{display:block;color:#fff}.footer-brand span{font-size:12px}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-groups h2{font-size:14px;color:#fff;margin:0 0 8px}.footer-groups a{display:block;padding:4px 0;color:#D4E8EC}.footer-note{margin-top:28px;color:#BCD6DB}.copyright{font-size:13px;color:#9BBEC5}.tide-drawer{position:fixed;top:0;right:0;width:min(410px,86vw);height:100dvh;background:#F4FAFC;z-index:1300;transform:translateX(104%);transition:transform .25s ease;visibility:hidden;pointer-events:none;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:12px;margin-bottom:16px}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand img{height:30px;width:auto;object-fit:contain}.drawer-brand small{display:block;color:#7A9AA4}.drawer-close,.search-close{min-height:44px;border:1px solid rgba(26,127,143,.18);border-radius:10px;background:#fff;color:#0F5B68;padding:0 14px;cursor:pointer}.wave-cards{display:grid;gap:12px}.wave-card{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:16px;padding:15px;box-shadow:0 10px 24px rgba(14,58,70,.06)}.wave-card h2{font-size:15px;color:#0E3A46;margin:0 0 8px}.wave-card a{display:block;padding:10px;border-radius:10px}.wave-card a:hover{background:#E7F3F6}.wave-card b{display:block;color:#0E3A46}.wave-card span{display:block;color:#4A7380;font-size:13px;line-height:1.55}.search-layer{position:fixed;top:82px;left:0;right:0;z-index:1250;visibility:hidden;pointer-events:none;transform:translateY(-14px);opacity:0;transition:.2s ease}.search-layer.is-open{visibility:visible;pointer-events:auto;transform:translateY(0);opacity:1}.search-card{width:min(760px,calc(100% - 32px));margin:auto;background:#fff;border:1px solid rgba(26,127,143,.16);box-shadow:0 14px 34px rgba(14,58,70,.12);border-radius:0 0 16px 16px;padding:18px}.search-top{display:flex;align-items:center;justify-content:space-between;color:#0E3A46}.search-look{min-height:50px;border:1px solid rgba(26,127,143,.2);border-radius:10px;display:flex;align-items:center;padding:0 16px;margin:14px 0;color:#7A9AA4}.search-presets{display:flex;flex-wrap:wrap;gap:8px}.search-presets a{background:#D7EEF2;color:#0E3A46;border-radius:8px;padding:9px 12px}.page-mask{position:fixed;inset:0;background:rgba(14,58,70,.34);z-index:1200;opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}.page-mask.is-open{opacity:1;visibility:visible;pointer-events:auto}.mobile-bottom{display:none}.focus-link:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(43,179,196,.45);outline-offset:2px}@media(max-width:900px){.step-grid,.four-grid{grid-template-columns:repeat(2,1fr)}.three-grid{grid-template-columns:1fr}.split{grid-template-columns:1fr}.number-list{grid-template-columns:repeat(2,1fr)}.footer-groups{grid-template-columns:repeat(2,1fr)}}@media(max-width:680px){body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}.header-inner{width:calc(100% - 32px)}.shell-tabs{display:none}.site-main{padding-top:82px}.mist-line{height:20px}.dock-bar,.dock-inner{height:62px}.dock-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand-main{min-width:0;overflow:hidden}.brand-main img{height:30px;max-width:120px}.brand-main span{white-space:nowrap;font-size:15px}.dock-action{padding:0 10px;min-width:44px}.app-link{font-size:14px}.section{padding:34px 0}.panel{padding:20px}.step-grid,.four-grid,.two-grid,.gallery-lane{grid-template-columns:1fr}.number-list{grid-template-columns:1fr}.index-row{grid-template-columns:52px 1fr}.index-row a{grid-column:2}.search-layer{top:82px}.search-card{width:calc(100% - 16px);background:#E7F3F6;border-radius:0 0 14px 14px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:1100;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid rgba(26,127,143,.16)}.mobile-bottom a{min-height:50px;display:flex;align-items:center;justify-content:center;color:#0E3A46;font-size:13px}.mobile-bottom a.active{background:#1A7F8F;color:#fff}.site-footer{padding-bottom:90px}.footer-groups{grid-template-columns:1fr 1fr}.hero-image{min-height:150px}.content-image{height:200px}.app-image{height:360px}}@media(max-width:430px){.footer-groups{grid-template-columns:1fr}.brand-mini{font-size:11px}.dock-action{font-size:13px;padding:0 8px}.site-main{overflow-x:hidden}}
