:root{--ink-950: #07182f;--ink-900: #0b213d;--ink-800: #14304e;--quartz-50: #f7f8f7;--quartz-100: #f2f4f3;--quartz-200: #e3e8e5;--quartz-400: #9da8a3;--quartz-600: #586661;--lime-400: #c7f36b;--lime-500: #acd94e;--white: #ffffff;--font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;--radius-sm: 10px;--radius-md: 18px;--radius-lg: 28px;--shadow-soft: 0 18px 50px rgba(7, 24, 47, .09), 0 2px 8px rgba(7, 24, 47, .05);--shadow-deep: 0 28px 80px rgba(2, 12, 27, .24), 0 4px 16px rgba(2, 12, 27, .12);--ease: cubic-bezier(.22, 1, .36, 1)}*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;max-width:100vw;overflow-x:hidden;background:var(--quartz-100);color:var(--ink-950);font-family:var(--font-sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,textarea{font:inherit}button{cursor:pointer}.skip{position:fixed;top:-60px;left:18px;z-index:100;background:#fff;padding:12px 18px;border-radius:10px}.skip:focus{top:12px}.site-header{position:fixed;z-index:30;top:18px;left:3vw;right:3vw;height:68px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;color:var(--ink-950);border:1px solid rgba(7,24,47,.1);background:#f7f8f7e0;backdrop-filter:blur(18px);border-radius:16px;box-shadow:0 8px 30px #07182f0d;transition:.3s var(--ease)}.dark-header .site-header:not(.scrolled){color:#fff;border-color:#fff3;background:#07182f40}.site-header.scrolled{top:10px;background:#f7f8f7f5;color:var(--ink-950)}.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:-.02em}.brand-mark{position:relative;flex:none;width:32px;height:32px;border-radius:9px;background:var(--ink-950);display:inline-block}.brand-mark:before{content:"";position:absolute;left:8px;bottom:9px;width:7px;height:7px;border-left:3px solid white;border-bottom:3px solid white;box-shadow:7px -7px 0 -2px var(--ink-950),7px -7px 0 1px #fff,14px -14px 0 -2px var(--ink-950),14px -14px 0 1px #fff}.brand-mark i{position:absolute;width:6px;height:6px;border-radius:50%;background:var(--lime-400);right:5px;top:5px}.site-header nav{display:flex;gap:1.7vw;font-size:13px;color:var(--quartz-600)}.dark-header .site-header:not(.scrolled) nav{color:#ffffffbf}.site-header nav a{transition:.2s}.site-header nav a:hover{color:var(--lime-500)}.header-cta,.primary-button{border:0;border-radius:10px;padding:12px 16px;background:var(--ink-950);color:#fff}.dark-header .site-header:not(.scrolled) .header-cta{background:#ffffff21}.header-cta span,.primary-button span{color:var(--lime-400);margin-left:16px}.menu-button{display:none;width:44px;height:44px;border:0;background:transparent;color:currentColor}.menu-button i{display:block;width:22px;height:1px;background:currentColor;margin:6px auto}.eyebrow{display:flex;align-items:center;gap:10px;text-transform:uppercase;font-size:12px;letter-spacing:.16em;font-weight:600}.eyebrow:before{content:"";width:28px;height:2px;background:var(--lime-400)}.home-hero{position:relative;min-height:100svh;overflow:hidden;color:#fff;padding:138px 5vw 58px}.home-hero>img,.hero-overlay{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero-overlay{background:linear-gradient(90deg,#030d1ce6,#030d1c9e 48%,#030d1c33),linear-gradient(0deg,rgba(3,13,28,.82),transparent 54%)}.hero-content{position:relative;z-index:2;max-width:650px}.hero-content h1,.page-hero h1,.not-found h1{font-size:clamp(48px,6vw,90px);line-height:1;letter-spacing:-.055em;font-weight:560;margin:26px 0 22px;white-space:pre-line}.hero-content>p:last-child{max-width:520px;color:#ffffffb8;line-height:1.75;font-size:17px}.home-hero .ai-planner{position:relative;z-index:3;width:min(650px,46vw);margin:-64px 0 0 auto}.hero-foot{position:absolute;z-index:2;bottom:28px;left:5vw;right:5vw;display:flex;align-items:center;gap:18px;color:#ffffff80;font-size:11px}.hero-foot i{height:1px;flex:1;background:#fff3}.ai-planner{background:#f7f8f7f5;color:var(--ink-950);border:1px solid rgba(255,255,255,.5);border-radius:var(--radius-lg);padding:25px 28px 22px;box-shadow:var(--shadow-deep)}.planner-heading{display:flex;justify-content:space-between;align-items:start}.planner-heading>div>span{font-size:11px;color:var(--quartz-600)}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--lime-500);margin-right:7px}.planner-heading h2{font-size:24px;letter-spacing:-.03em;font-weight:580;margin:8px 0 0}.step-count{font-size:12px;color:var(--quartz-600)}.progress{height:2px;background:var(--quartz-200);margin:20px 0}.progress i{display:block;width:33.333%;height:100%;background:var(--lime-500);transition:.35s var(--ease)}.planner-step{display:none}.planner-step.active{display:block;animation:enter .3s var(--ease)}@keyframes enter{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.planner-step>p,.planner-step label{font-size:14px;color:var(--quartz-600)}.choice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.choice-grid button{min-height:68px;min-width:0;border:1px solid var(--quartz-200);background:#fff;border-radius:10px;color:var(--ink-950);font-weight:600;transition:.2s var(--ease)}.choice-grid button small{display:block;font-weight:400;color:var(--quartz-600)}.choice-grid button:hover,.choice-grid button.selected{transform:translateY(-2px);border-color:var(--lime-500);background:#f8ffec;box-shadow:0 8px 22px #07182f14}.planner-step textarea{display:block;width:100%;resize:vertical;min-height:88px;margin-top:10px;padding:12px;border:1px solid var(--quartz-200);border-radius:10px;background:#fff;color:var(--ink-950)}.planner-step textarea:focus{outline:3px solid rgba(199,243,107,.45);border-color:var(--lime-500)}.planner-actions{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-top:16px}.planner-actions p{max-width:390px;font-size:10px;line-height:1.5;color:var(--quartz-600);margin:0}.planner-actions button{flex:none;border:0;border-radius:10px;background:var(--ink-950);color:#fff;padding:11px 16px}.planner-actions button span{color:var(--lime-400);margin-left:14px}.planner-actions button:disabled{opacity:.35;cursor:not-allowed}.planner-result{padding:15px;background:#fff;border:1px solid var(--quartz-200);border-radius:12px}.result-state{font-size:11px;color:var(--quartz-600);margin-bottom:8px}.result-state.loading:before{content:"";display:inline-block;width:10px;height:10px;margin-right:8px;border:2px solid var(--quartz-200);border-top-color:var(--lime-500);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.result-copy{white-space:pre-wrap;line-height:1.65;font-size:14px}.result-sources{display:grid;gap:5px;margin-top:10px}.result-sources a{font-size:11px;color:var(--ink-800);text-decoration:underline}.planner-result small{display:block;margin-top:10px;color:var(--quartz-600);line-height:1.5}.planner-modal{width:min(720px,calc(100% - 28px));border:0;padding:0;background:transparent;overflow:visible}.planner-modal::backdrop{background:#030d1cb8;backdrop-filter:blur(8px)}.modal-close{position:absolute;z-index:3;right:12px;top:12px;width:40px;height:40px;border:0;border-radius:50%;background:var(--quartz-200);font-size:22px;color:var(--ink-950)}.planner-modal .ai-planner{width:100%}.section{padding:112px 7vw}.section-label{color:var(--quartz-600);font-size:12px;letter-spacing:.15em;text-transform:uppercase;border-bottom:1px solid var(--quartz-200);padding-bottom:22px;margin-bottom:52px}.split{display:grid;grid-template-columns:1fr .8fr;gap:10vw}.section h2{font-size:clamp(38px,4.7vw,68px);line-height:1.08;letter-spacing:-.045em;font-weight:560;margin:0}.split p{font-size:18px;line-height:1.75;color:var(--quartz-600);margin:0}.route-rail{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:24px;margin-top:74px;padding-top:24px}.route-rail:before{content:"";position:absolute;top:58px;left:0;right:0;height:1px;background:var(--quartz-200)}.route-rail article{position:relative}.route-rail span{font-size:11px;color:var(--quartz-600)}.route-rail i{position:relative;z-index:2;display:block;width:15px;height:15px;margin:24px 0;border-radius:50%;background:var(--quartz-100);border:3px solid var(--ink-950)}.route-rail article:last-child i{background:var(--lime-400);box-shadow:0 0 0 7px #c7f36b40}.route-rail h3{font-size:16px;margin:0 0 8px}.route-rail p{font-size:13px;line-height:1.6;color:var(--quartz-600)}.dark-section{background:var(--ink-950);color:#fff}.dark-section .section-label{color:#ffffff80;border-color:#ffffff26}.module-grid{display:grid;grid-template-columns:1.1fr repeat(3,.72fr);gap:14px;margin-top:58px}.module-card{min-height:280px;padding:24px;border-radius:18px;border:1px solid rgba(255,255,255,.13);background:#ffffff0b;display:flex;flex-direction:column;transition:.25s var(--ease)}.module-card:hover{transform:translateY(-5px);background:#ffffff12}.module-card.feature{background:#fff;color:var(--ink-950)}.module-card span{font-size:11px;color:var(--lime-400)}.module-card h3{font-size:24px;font-weight:550;margin:64px 0 10px}.module-card p{font-size:13px;line-height:1.65;color:#ffffff91}.module-card.feature p{color:var(--quartz-600)}.module-card a{margin-top:auto;font-size:12px}.page-hero{padding:174px 7vw 90px;background:linear-gradient(145deg,var(--ink-950),#102e4d);color:#fff;position:relative;overflow:hidden}.page-hero:after{content:"";position:absolute;width:460px;height:460px;border-radius:50%;right:-100px;top:-180px;background:radial-gradient(circle,rgba(199,243,107,.17),transparent 65%)}.breadcrumbs{display:flex;gap:8px;font-size:11px;color:#ffffff8c;position:relative;z-index:2}.breadcrumbs a:hover{color:var(--lime-400)}.page-hero h1{position:relative;z-index:2;max-width:920px;margin-bottom:24px}.page-hero>p{position:relative;z-index:2;max-width:720px;font-size:18px;line-height:1.75;color:#ffffffad}.answer-section{display:grid;grid-template-columns:.42fr 1fr;gap:8vw}.answer-label{font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--quartz-600)}.answer-copy{font-size:24px;line-height:1.65;letter-spacing:-.02em;margin:0}.principle-grid,.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.info-card{background:#fff;border:1px solid var(--quartz-200);border-radius:18px;padding:26px;min-height:210px;box-shadow:0 14px 40px #07182f0a;transition:.25s var(--ease)}.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft)}.info-card span{font-size:11px;color:var(--lime-500)}.info-card h3{font-size:22px;font-weight:560;margin:52px 0 10px}.info-card p{font-size:14px;line-height:1.7;color:var(--quartz-600)}.process{background:#e8ece9}.faq-list{display:grid;gap:1px;background:var(--quartz-200);border:1px solid var(--quartz-200);border-radius:18px;overflow:hidden}.faq-list details{background:#fff;padding:22px 24px}.faq-list summary{cursor:pointer;font-weight:550;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";float:right;color:var(--lime-500);font-size:20px}.faq-list details[open] summary:after{content:"−"}.faq-list p{color:var(--quartz-600);line-height:1.75;margin:15px 0 0;max-width:780px}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.related-grid a{background:var(--ink-950);color:#fff;border-radius:16px;padding:24px;min-height:140px;display:flex;align-items:end;justify-content:space-between;transition:.25s var(--ease)}.related-grid a:hover{transform:translateY(-4px)}.related-grid span{color:var(--lime-400)}.cta-band{display:flex;justify-content:space-between;align-items:center;background:#fff;border-radius:24px;padding:42px;box-shadow:var(--shadow-soft)}.cta-band h2{font-size:clamp(32px,4vw,54px)}.cta-band button{flex:none}.site-footer{background:var(--ink-950);color:#fff;padding:50px 7vw;display:grid;grid-template-columns:1fr 1fr auto;gap:40px;align-items:start}.site-footer p,.site-footer nav,.legal{font-size:12px;line-height:1.7;color:#ffffff80}.site-footer nav{display:grid;grid-template-columns:1fr 1fr;gap:10px}.site-footer nav a:hover{color:var(--lime-400)}.not-found{min-height:78vh;padding:180px 7vw 100px;background:var(--ink-950);color:#fff}.not-found p{max-width:590px;color:#ffffffa6;font-size:18px;line-height:1.7}.not-found .actions{display:flex;gap:12px;margin-top:30px}.not-found a{padding:13px 18px;border-radius:10px;background:#fff;color:var(--ink-950)}.not-found a:last-child{background:var(--lime-400)}@media(max-width:980px){.site-header nav,.header-cta{display:none}.menu-button{display:block}.site-header.open{height:auto;align-items:flex-start;padding-bottom:18px}.site-header.open nav{display:flex;position:absolute;top:65px;left:12px;right:12px;padding:18px;border-radius:12px;background:var(--ink-950);color:#fff;flex-direction:column}.home-hero .ai-planner{width:100%;margin:42px 0 0}.hero-foot{display:none}.split,.answer-section{grid-template-columns:1fr;gap:28px}.route-rail{overflow:auto;grid-template-columns:repeat(5,190px);padding-bottom:20px}.module-grid{grid-template-columns:1fr 1fr}.module-card.feature{grid-column:span 2}.principle-grid,.step-grid,.related-grid,.site-footer{grid-template-columns:1fr 1fr}.site-footer .legal{grid-column:span 2}.cta-band{align-items:flex-start;flex-direction:column;gap:28px}}@media(max-width:600px){.site-header{left:14px;right:14px;top:12px}.home-hero{min-height:auto;padding:118px 20px 64px}.home-hero>img{object-position:65% center}.hero-overlay{background:linear-gradient(180deg,#030d1ccc,#030d1ceb)}.hero-content h1,.page-hero h1{font-size:48px}.home-hero .ai-planner{padding:20px 16px;border-radius:20px}.choice-grid{gap:6px}.choice-grid button{padding-inline:3px}.planner-actions{align-items:flex-end}.section{padding:78px 20px}.section h2{font-size:40px}.page-hero{padding:150px 20px 70px}.page-hero>p{font-size:16px}.answer-copy{font-size:20px}.module-grid,.principle-grid,.step-grid,.related-grid{grid-template-columns:1fr}.module-card.feature{grid-column:auto}.cta-band{padding:28px 22px}.site-footer{grid-template-columns:1fr;padding:45px 20px}.site-footer .legal{grid-column:auto}.planner-modal .ai-planner{padding:20px 16px}.planner-heading h2{font-size:20px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}