:root{--bg: #f7f6f3;--surface: #ffffff;--surface-2: #efede8;--ink: #1f1e1b;--ink-soft: #6b6a64;--ink-faint: #a8a69f;--line: #ece9e3;--line-strong: #d8d5ce;--accent: #9c3b2e;--accent-deep: #7e2e23;--accent-soft: #f4e7e3;--danger: #9c3b2e;--ok: #2f7d46;--focus: #9c3b2e;--danger-bg: #fdf1ef;--danger-border: #e8c4bd;--danger-ink: #7a2a1c;--font-sans: "LXGW Neo XiHei", -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--font-mono: "Maple Mono CN", ui-monospace, "SF Mono", Menlo, Consolas, monospace;--font-kai: "LXGW WenKai GB", "Kaiti SC", "KaiTi", "STKaiti", serif;--radius-card: 16px;--radius-btn: 12px;--radius-seg: 12px;--radius: 12px;--shadow-sm: 0 1px 3px rgba(31, 30, 27, .06);--shadow: 0 2px 8px rgba(31, 30, 27, .06);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .16)}:root[data-theme=dark]{--bg: #181614;--surface: #22201d;--surface-2: #2c2a26;--ink: #eae7e2;--ink-soft: #b3afa6;--ink-faint: #7d7a72;--line: #302d29;--line-strong: #47433d;--accent: #d1806f;--accent-deep: #e09080;--accent-soft: #3d2b27;--danger: #e08a7b;--ok: #6fae82;--focus: #d1806f;--danger-bg: #3d2b27;--danger-border: #5a3a34;--danger-ink: #e0a094;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow: 0 2px 8px rgba(0, 0, 0, .4);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .5)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-sans);color:var(--ink);background-color:var(--bg);min-height:100dvh;-webkit-font-smoothing:antialiased;line-height:1.6}:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:6px}button{font-family:inherit}.app{max-width:640px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;padding:0 16px}.app__main{flex:1;padding-bottom:24px}.app__footer{padding:16px 0 24px;text-align:center;color:var(--ink-faint);font-size:12px;border-top:1px solid 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var(--home-rule)}.faq__item{border-bottom:1px solid var(--home-rule)}.faq__q{min-height:56px;padding:16px 2px;display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none;font-size:16px;font-weight:500;letter-spacing:.03em;cursor:pointer}.faq__q::-webkit-details-marker{display:none}.faq__q:after{content:"";flex:none;width:12px;height:12px;color:var(--accent);background:linear-gradient(currentColor,currentColor) center / 12px 1.5px no-repeat,linear-gradient(currentColor,currentColor) center / 1.5px 12px no-repeat;transition:transform .25s ease}.faq__item[open]>.faq__q:after{transform:rotate(45deg)}.faq__a{margin:0;padding:0 2px 20px;font-size:14.5px;line-height:1.85;color:var(--ink-soft)}.home-closing{margin-top:clamp(96px,18vw,140px);padding:40px 20px 44px;display:flex;flex-direction:column;align-items:center;text-align:center;background:var(--home-card);border:1px solid var(--line);border-radius:24px;box-shadow:var(--home-shadow-card)}.home-closing__seal{width:36px;height:36px;margin-bottom:18px}.home-closing__title{margin:0 0 8px;font-size:clamp(22px,5.8vw,28px);font-weight:500;letter-spacing:.12em;padding-left:.12em}.home-closing__body{margin:0 0 24px;font-size:14.5px;letter-spacing:.06em;color:var(--ink-soft)}.app--home .info-footer{margin-top:64px;border-top-color:var(--home-rule)}.app--home .info-footer__link{color:var(--ink-soft)}@media (min-width: 720px){.app--home .step__title--center{font-size:44px;margin-bottom:28px}.home-masthead__seal{width:52px;height:52px}.home-masthead__brand{font-size:24px}.steps{grid-template-columns:repeat(3,minmax(0,1fr));column-gap:28px}.steps__item,.steps__item:last-child{grid-template-columns:1fr;gap:12px;padding:22px 0 4px;border-bottom:0}.methods{gap:16px}.methods__item{padding:20px 18px}.case-card{padding:28px 28px 22px}.gua{padding:18px 20px 16px}}@media (max-width: 359px){.methods{grid-template-columns:1fr}}