:root{--ink:#152342;--muted:#667590;--line:#dfe6f3;--soft:#f3f6fc;--surface:#fff;--blue:#4169e1;--blue-dark:#2949b9;--lavender:#7b6ff0;--mint:#18b991;--shadow:0 18px 50px rgba(55,75,130,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;background:#f7f9fd}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}
.topbar{height:78px;display:flex;align-items:center;gap:44px;padding:0 clamp(24px,4vw,72px);position:sticky;top:0;z-index:40;background:rgba(250,252,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(214,224,241,.86)}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;color:#fff;font-size:21px;font-weight:800;background:linear-gradient(145deg,#4169e1,#8171ef);box-shadow:0 9px 22px rgba(65,105,225,.28)}.brand strong{font-size:19px;letter-spacing:.06em;display:block}.brand small{display:block;margin-top:2px;color:#7f8ba0;font-size:11px;letter-spacing:.28em}
.main-nav{display:flex;align-self:stretch;align-items:center;gap:34px}.main-nav a{height:100%;display:flex;align-items:center;position:relative;color:#61708b;font-size:15px;font-weight:700}.main-nav a.active{color:var(--ink)}.main-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px;background:var(--blue)}
.header-action{margin-left:auto;padding:11px 17px;border:1px solid #d6dfef;border-radius:12px;background:#fff;font-size:14px;font-weight:700;box-shadow:0 5px 15px rgba(44,66,116,.06)}.header-action span{color:var(--blue);margin-left:5px}
.hero-carousel{width:min(1480px,calc(100% - 48px));min-height:610px;margin:28px auto 0;position:relative;overflow:hidden;border-radius:30px;background:linear-gradient(125deg,#eef2ff 0%,#f7f9ff 52%,#eaf8f7 100%);box-shadow:var(--shadow);border:1px solid #e0e7f5}
.hero-carousel:before{content:"";position:absolute;width:450px;height:450px;right:-140px;top:-160px;border-radius:50%;background:rgba(123,111,240,.13);filter:blur(4px)}.hero-slide{min-height:610px;padding:64px clamp(40px,6vw,92px);display:grid;grid-template-columns:minmax(0,1fr) minmax(390px,.88fr);align-items:center;gap:7%;position:absolute;inset:0;opacity:0;transform:translateX(28px);pointer-events:none;transition:.55s ease}.hero-slide.active{opacity:1;transform:none;pointer-events:auto;position:relative}
.eyebrow{display:inline-block;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.hero-copy h1,.hero-copy h2{max-width:690px;margin:18px 0;font-size:clamp(38px,4.3vw,68px);line-height:1.11;letter-spacing:-.045em}.hero-copy h2{font-size:clamp(34px,3.5vw,55px)}.hero-copy p{max-width:620px;margin:0 0 31px;color:var(--muted);font-size:18px;line-height:1.85}.hero-actions,.function-actions{display:flex;gap:13px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border:0;border-radius:13px;font-weight:800;cursor:pointer;transition:.2s}.button.primary{color:#fff;background:linear-gradient(135deg,var(--blue),var(--blue-dark));box-shadow:0 11px 25px rgba(65,105,225,.25)}.button.primary:hover{transform:translateY(-2px)}.button.ghost{background:rgba(255,255,255,.8);border:1px solid #d8e0f0;color:#354363}
.hero-art{height:460px;position:relative;display:grid;place-items:center}.brand-art{height:430px;border-radius:26px;overflow:hidden;background:#dce5ff;box-shadow:0 22px 45px rgba(48,67,124,.17)}.brand-art img{width:100%;height:100%;object-fit:cover;object-position:center 32%}.carousel-dots{position:absolute;left:clamp(40px,6vw,92px);bottom:30px;z-index:8;display:flex;gap:8px}.carousel-dots button{width:9px;height:9px;padding:0;border:0;border-radius:999px;background:#aebbd2;cursor:pointer;transition:.25s}.carousel-dots button.active{width:31px;background:var(--blue)}
.intro-section{width:min(1380px,calc(100% - 48px));margin:90px auto;padding-bottom:80px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:60px;margin-bottom:30px}.section-heading h2{font-size:clamp(30px,3vw,45px);margin:11px 0 0;letter-spacing:-.03em}.section-heading>p{max-width:510px;margin:0;color:var(--muted);line-height:1.8}.intro-grid{display:grid;grid-template-columns:1.45fr .72fr .72fr;gap:18px}.intro-card{position:relative;min-height:230px;padding:30px;border:1px solid var(--line);border-radius:23px;background:#fff;box-shadow:0 12px 35px rgba(42,61,111,.07)}.feature-intro{display:grid;grid-template-columns:auto 1fr;gap:20px;align-content:center;padding-right:140px}.feature-intro>a{position:absolute;right:29px;bottom:29px;color:var(--blue);font-size:14px;font-weight:800}.platform-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:15px;font-size:25px;font-weight:900}.douyin-icon{color:#fff;background:linear-gradient(145deg,#1f2841,#090c15);box-shadow:inset -4px -4px 0 #ef486f,inset 4px 4px 0 #25dbe1}.mini-label{font-size:12px;font-weight:800;color:var(--blue)}.intro-card h3{font-size:22px;margin:8px 0}.intro-card p{color:var(--muted);margin:0;line-height:1.7}.principle-card span{font-size:42px;color:#d5def0;font-weight:900}.principle-card h3{margin-top:28px}
footer{padding:27px;text-align:center;color:#8b97aa;border-top:1px solid var(--line);background:#f9fbff;font-size:13px}
.pet-widget{position:fixed;right:18px;bottom:10px;z-index:35;display:flex;align-items:flex-end}.pet-bubble{max-width:195px;margin:0 -14px 80px 0;padding:11px 15px;border:1px solid #dce3f0;border-radius:15px 15px 2px 15px;background:rgba(255,255,255,.94);box-shadow:0 10px 24px rgba(47,64,106,.11);font-size:13px;font-weight:700;opacity:0;transform:translateY(8px);transition:.25s}.pet-widget:hover .pet-bubble{opacity:1;transform:none}.dog-stage{width:150px;height:145px;overflow:hidden;pointer-events:auto}.dog-canvas{width:150px!important;height:145px!important}
.workspace-body{min-height:100vh;background:#f2f5fb}.workbench-shell{width:min(1540px,calc(100% - 40px));min-height:calc(100vh - 112px);margin:20px auto;display:grid;grid-template-columns:230px 1fr;gap:20px}.platform-sidebar,.workspace-content{border:1px solid var(--line);border-radius:22px;background:rgba(255,255,255,.91);box-shadow:0 14px 38px rgba(42,61,111,.06)}.platform-sidebar{padding:22px 15px;display:flex;flex-direction:column}.sidebar-title{padding:3px 10px 19px}.sidebar-title span{font-size:18px;font-weight:900}.sidebar-title small{display:block;color:#9aa6b8;font-size:9px;letter-spacing:.18em;margin-top:5px}.platform-item{width:100%;display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:11px;text-align:left;padding:12px;border:1px solid transparent;border-radius:15px;background:transparent;color:var(--ink);cursor:pointer}.platform-item.active{background:#edf2ff;border-color:#dce5fb}.platform-item .platform-icon{width:42px;height:42px;font-size:21px;border-radius:13px}.platform-item strong,.platform-item small{display:block}.platform-item small{color:var(--muted);margin-top:3px}.platform-item i{font-style:normal;font-size:24px;color:#8ca0c1}.sidebar-tip{margin-top:auto;padding:17px;border-radius:15px;background:#f4f6fb}.sidebar-tip strong{font-size:13px}.sidebar-tip p{font-size:12px;line-height:1.55;color:var(--muted);margin:7px 0 0}.workspace-content{padding:30px}.workspace-heading{display:flex;align-items:start;justify-content:space-between;gap:30px;padding:2px 3px 23px;border-bottom:1px solid var(--line);margin-bottom:20px}.workspace-heading h1{font-size:27px;margin:7px 0}.workspace-heading p{color:var(--muted);margin:0;font-size:13px}.online-badge{display:flex;align-items:center;gap:8px;padding:11px 14px;border:1px solid #dce5f0;border-radius:12px;background:#fbfdff;color:#51617a;font-size:13px}.online-badge i{width:9px;height:9px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 6px rgba(24,185,145,.12)}
.function-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px;align-items:start}.function-card{width:100%;max-width:286px;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:15px;overflow:hidden;background:#fff;box-shadow:0 8px 24px rgba(42,61,111,.06);transition:transform .2s,box-shadow .2s,border-color .2s}.function-card:hover{transform:translateY(-3px);border-color:#cbd8f4;box-shadow:0 14px 30px rgba(42,61,111,.11)}.function-visual{position:relative;height:164px;display:flex;align-items:flex-end;justify-content:center;overflow:hidden;background:linear-gradient(145deg,#b6cdff,#eef3ff)}.visual-top{position:absolute;z-index:4;top:10px;left:10px;right:10px;display:flex;align-items:center;justify-content:space-between}.visual-top .mini-label{padding:5px 8px;border-radius:8px;background:rgba(255,255,255,.9)}.choose-character{border:1px solid rgba(255,255,255,.86);border-radius:8px;padding:6px 9px;background:rgba(255,255,255,.92);color:#394866;font-size:11px;font-weight:800;cursor:pointer;box-shadow:0 5px 13px rgba(40,55,98,.08)}.function-visual>img{width:90%;height:94%;position:relative;z-index:2;object-fit:contain;object-position:center bottom;filter:drop-shadow(0 8px 12px rgba(44,58,102,.12))}.function-copy{padding:15px;display:flex;flex:1;flex-direction:column}.function-title{display:flex;align-items:center;gap:10px}.function-title .platform-icon{width:34px;height:34px;border-radius:10px;font-size:18px;flex:0 0 auto}.function-title small{display:block;color:var(--blue);font-size:10px;font-weight:800}.function-title h2{font-size:17px;line-height:1.35;margin:2px 0 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.function-copy>p{min-height:41px;margin:11px 0 14px;color:var(--muted);font-size:12px;line-height:1.7;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.function-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:auto}.function-actions .button{width:100%;min-height:39px;border-radius:9px;font-size:12px;padding:0 8px;box-shadow:none}
.character-modal{position:fixed;inset:0;z-index:80;display:none}.character-modal.open{display:block}.modal-backdrop{position:absolute;inset:0;background:rgba(15,25,48,.52);backdrop-filter:blur(5px)}.modal-panel{position:absolute;width:min(940px,calc(100% - 36px));max-height:86vh;left:50%;top:50%;transform:translate(-50%,-50%);overflow:hidden;display:flex;flex-direction:column;border-radius:24px;background:#fff;box-shadow:0 30px 90px rgba(15,25,48,.3)}.modal-header{padding:25px 27px 17px;display:flex;align-items:start;justify-content:space-between;border-bottom:1px solid var(--line)}.modal-header h2{margin:8px 0 0}.modal-close{width:38px;height:38px;border:0;border-radius:11px;background:#f1f4f9;color:#64728a;font-size:25px;cursor:pointer}.picker-tabs{padding:14px 27px 0;display:flex;gap:9px}.picker-tabs button{border:0;border-radius:10px;padding:9px 14px;background:#f1f4f9;color:#68758c;font-size:13px;font-weight:800;cursor:pointer}.picker-tabs button.active{background:#e8eeff;color:var(--blue)}.character-grid{padding:18px 27px 25px;display:grid;grid-template-columns:repeat(6,1fr);gap:12px;overflow:auto}.character-option{position:relative;aspect-ratio:1;border:2px solid transparent;border-radius:15px;overflow:hidden;background:#eef2f9;cursor:pointer;padding:0}.character-option img{width:100%;height:100%;object-fit:cover}.character-option.active{border-color:var(--blue);box-shadow:0 0 0 3px rgba(65,105,225,.13)}.character-option.active:after{content:"✓";position:absolute;right:7px;top:7px;width:22px;height:22px;display:grid;place-items:center;border-radius:50%;color:#fff;background:var(--blue);font-size:12px;font-weight:900}.modal-footer{padding:15px 27px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);background:#fafbfe;color:var(--muted);font-size:13px}.modal-footer .button{min-height:40px}
@media (max-width:1000px){.hero-slide{grid-template-columns:1fr;gap:20px;padding-bottom:82px}.hero-art{display:none}.hero-carousel,.hero-slide{min-height:570px}.intro-grid{grid-template-columns:1fr 1fr}.feature-intro{grid-column:1/-1}.workbench-shell{grid-template-columns:1fr}.sidebar-tip{display:none}.function-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}.character-grid{grid-template-columns:repeat(4,1fr)}}
@media (max-width:680px){.topbar{height:66px;padding:0 15px;gap:15px}.brand-mark{width:37px;height:37px}.brand strong{font-size:16px}.brand small{display:none}.main-nav{gap:17px}.main-nav a{font-size:13px}.header-action{display:none}.hero-carousel{width:calc(100% - 24px);margin-top:13px;border-radius:22px}.hero-slide{padding:44px 25px 82px}.hero-copy h1,.hero-copy h2{font-size:37px}.hero-copy p{font-size:15px}.carousel-dots{left:25px}.intro-section{width:calc(100% - 28px);margin-top:58px}.section-heading{display:block}.section-heading>p{margin-top:15px}.intro-grid{grid-template-columns:1fr}.feature-intro{padding:25px;grid-template-columns:1fr}.feature-intro>a{position:static;margin-top:15px}.workbench-shell{width:calc(100% - 20px);margin:10px auto}.workspace-content{padding:18px}.workspace-heading h1{font-size:24px}.function-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.function-card{max-width:none}.function-visual{height:132px}.function-copy{padding:12px}.function-title .platform-icon{display:none}.function-title h2{font-size:14px}.function-copy>p{font-size:11px}.character-grid{grid-template-columns:repeat(3,1fr);padding:15px}.modal-header,.modal-footer{padding-left:18px;padding-right:18px}.pet-widget{right:3px}.pet-bubble{display:none}.dog-stage{width:105px;height:105px}.dog-canvas{transform:scale(.72);transform-origin:left top}}