:root {
  color-scheme: light;
  --paper: #f6f3eb;
  --card: #fffdf8;
  --ink: #213a31;
  --muted: #697269;
  --orange: #d95425;
  --line: #dcded1;
  --note: #eeeedf;
  --green: #25734d;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 30px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.75 "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
button, a, summary, input { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }
[hidden] { display: none !important; }
p { margin: 0 0 12px; }
h1, h2, h3 { margin: 0; line-height: 1.3; }
h1 { font-size: clamp(42px, 5.3vw, 68px); letter-spacing: -2px; font-weight: 800; }
h2 { font-size: clamp(28px, 3vw, 38px); letter-spacing: -.8px; }
h3 { font-size: 20px; }
code { font: .9em "Cascadia Code", Consolas, monospace; background: var(--note); padding: 2px 5px; border-radius: 4px; overflow-wrap: anywhere; }
.skip { position: fixed; top: -100px; left: 12px; padding: 12px; background: var(--ink); color: var(--card); z-index: 100; }
.skip:focus { top: 12px; }
.masthead { max-width: 1280px; margin: auto; padding: 20px 44px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 800; line-height: 1.15; white-space: nowrap; }
.brand-mark { width: 42px; height: 42px; object-fit: cover; border-radius: 10px; }
.brand-sub { display: block; margin-top: 6px; font-size: 11px; letter-spacing: 3px; color: var(--muted); font-weight: 500; }
.masthead nav { display: flex; align-items: center; gap: 26px; font-size: 14px; }
.masthead nav a:hover, .text-link:hover { text-decoration: underline; text-underline-offset: 6px; }
.nav-support { padding: 6px 13px; border: 1px solid var(--line); border-radius: 6px; }
main { max-width: 1192px; margin: auto; padding: 0 36px; }
.hero { padding: 70px 0 56px; display: grid; grid-template-columns: 1.25fr 1fr; gap: 64px; align-items: center; }
.eyebrow { font-size: 12px; letter-spacing: 1px; color: var(--muted); margin-bottom: 14px; }
.underline { position: relative; z-index: 0; }
.underline::after { content: ""; position: absolute; left: -1%; right: -1%; height: 12%; bottom: 2%; background: #efd68c; z-index: -1; transform: rotate(-2deg); }
.hero-description { font-size: 17px; margin-top: 22px; color: var(--muted); line-height: 1.85; }
.hero-actions { display: flex; gap: 16px; align-items: center; margin-top: 28px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 24px; padding: 12px 19px; border-radius: 6px; font-size: 14px; font-weight: 700; border: 1px solid transparent; }
.primary { background: var(--orange); color: #fff8eb; }
.primary:hover { background: #bb471d; }
.plain { border-color: var(--line); background: transparent; }
.plain:hover, .copy:hover, .quick-links a:hover { background: var(--note); }
.small-note { font-size: 11px; color: var(--muted); margin-top: 20px; }
.hero-note { background: var(--note); border: 1px solid var(--line); border-radius: 3px; padding: 28px 32px 18px; transform: rotate(1.5deg); position: relative; }
.hero-note::before { content: ""; position: absolute; width: 78px; height: 20px; top: -11px; left: calc(50% - 39px); background: #e5c577aa; transform: rotate(-4deg); }
.note-label { font-size: 12px; color: var(--muted); border-bottom: 1px dashed var(--line); padding-bottom: 14px; letter-spacing: 1px; }
.route-step { display: flex; gap: 20px; padding: 21px 0 13px; }
.route-step > span, .section-number { font-family: Georgia, serif; font-style: italic; color: var(--orange); }
.route-step > span { font-size: 25px; }
.route-step p { font-size: 16px; font-weight: 700; margin: 0; }
.route-step small { display: block; font-size: 12px; color: var(--muted); font-weight: 400; margin-top: 3px; }
.note-bottom { display: flex; justify-content: space-between; border-top: 1px dashed var(--line); margin-top: 12px; padding-top: 14px; font-size: 11px; color: var(--muted); }
.note-bottom span { font-size: 20px; color: var(--orange); }
.quick-links { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); margin-bottom: 10px; }
.quick-links a { padding: 17px 19px; display: flex; justify-content: space-between; gap: 14px; font-size: 13px; border-right: 1px solid var(--line); }
.quick-links a:last-child { border: 0; }
.quick-links span { color: var(--orange); }
.section { padding: 64px 0; border-bottom: 1px solid var(--line); }
.section-title { display: flex; gap: 20px; align-items: center; margin-bottom: 28px; }
.section-title .eyebrow { margin: 0 0 6px; }
.section-number { font-size: 43px; line-height: 1; }
.margin-note { margin-left: auto; font-size: 12px; color: var(--muted); }
.intro-strip { border-left: 3px solid var(--orange); background: var(--note); padding: 18px 22px; margin-bottom: 12px; }
.intro-strip p { font-size: 13px; color: var(--muted); margin: 6px 0 0; }
.setup-steps { list-style: none; margin: 0; padding: 0; }
.setup-steps > li { display: flex; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.setup-steps > li:last-child { border: 0; }
.setup-steps > li > div { min-width: 0; }
.step-no { width: 34px; height: 34px; flex-shrink: 0; display: grid; place-items: center; border: 1px solid var(--line); color: var(--muted); border-radius: 50%; font: 20px/1 Georgia, serif; }
.setup-steps .recommended .step-no { background: var(--orange); border-color: var(--orange); color: white; }
.setup-steps h3 { margin-bottom: 13px; }
.setup-steps p { max-width: 850px; color: var(--muted); font-size: 14px; }
.tag { display: inline-block; vertical-align: middle; background: #f3dfc4; color: #9b5828; font-size: 10px; padding: 3px 7px; border-radius: 4px; margin-left: 8px; }
.inline-actions { display: flex; gap: 26px; flex-wrap: wrap; margin: 14px 0; }
.inline-actions a, .text-link { font-size: 13px; text-decoration: underline; text-underline-offset: 5px; text-decoration-color: var(--line); }
.text-link { display: inline-block; margin-top: 14px; }
.tip { font-size: 12px !important; color: var(--muted) !important; margin: 14px 0 0; line-height: 1.85; }
.mini-flow { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 20px 0; }
.mini-flow span { padding: 8px 12px; border: 1px solid var(--line); border-radius: 5px; font-size: 12px; background: var(--card); }
.mini-flow b { color: var(--muted); font-size: 14px; font-weight: 400; }
.mini-flow .flow-end { border-color: #b8ccb7; color: var(--green); background: #e9efdf; }
.manual { background: var(--card); border: 1px solid var(--line); border-radius: 8px; margin-top: 36px; padding: 28px; }
.manual-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.manual-header .eyebrow { margin-bottom: 7px; }
.manual-header h3 { font-size: 22px; }
.tabs { display: flex; background: var(--note); padding: 4px; border-radius: 6px; gap: 4px; flex-shrink: 0; }
.tabs button { padding: 8px 12px; border: 0; background: transparent; border-radius: 4px; font-size: 12px; }
.tabs [aria-selected="true"] { background: var(--ink); color: var(--card); }
[role="tabpanel"] > p { font-size: 13px; color: var(--muted); }
.config-grid { display: grid; grid-template-columns: 1fr 1fr; margin: 22px 0; border-top: 1px solid var(--line); }
.config-grid > div { padding: 15px 12px 15px 0; border-bottom: 1px solid var(--line); min-width: 0; }
.config-grid > div:nth-child(even) { padding-left: 24px; border-left: 1px solid var(--line); }
dt { font-size: 11px; color: var(--muted); margin-bottom: 5px; }
dd { margin: 0; font-size: 14px; overflow-wrap: anywhere; }
dd small { display: block; font-size: 11px; color: var(--muted); margin-top: 4px; }
.copy { border: 1px solid var(--line); border-radius: 4px; background: transparent; font-size: 10px; padding: 2px 6px; margin-left: 8px; white-space: nowrap; }
.plain-details { border-top: 1px solid var(--line); margin-top: 24px; padding-top: 17px; font-size: 13px; }
.plain-details summary { font-weight: 700; cursor: pointer; }
.plain-details p { margin-top: 12px; color: var(--muted); }
.plain-details ol { padding-left: 20px; }
.section-description { color: var(--muted); max-width: 850px; font-size: 14px; margin-bottom: 26px; }
.search-wrap { display: flex; align-items: center; gap: 20px; margin-bottom: 17px; }
.search-label { display: flex; align-items: center; gap: 12px; background: var(--card); border: 1px solid var(--line); border-radius: 7px; padding: 0 17px; flex: 1; max-width: 760px; }
.search-label svg { flex-shrink: 0; color: var(--muted); }
.search-label input { border: 0; background: none; padding: 14px 0; min-width: 0; width: 100%; font-size: 14px; color: var(--ink); }
.search-label:focus-within { border-color: var(--orange); outline: 2px solid #e8c7a5; }
.search-label input:focus-visible { outline: 0; }
#result-count { font-size: 11px; color: var(--muted); white-space: nowrap; }
.filters { display: flex; gap: 9px; flex-wrap: wrap; margin-bottom: 25px; }
.filters button { background: transparent; border: 1px solid var(--line); border-radius: 5px; padding: 8px 11px; font-size: 11px; display: flex; align-items: center; gap: 7px; }
.filters .active { background: var(--ink); color: var(--card); border-color: var(--ink); }
.dot { width: 7px; height: 7px; display: inline-block; border-radius: 50%; flex-shrink: 0; }
.dot.you { background: #518665; }
.dot.us { background: #d97445; }
.dot.check { background: #4c83a7; }
.error-list { border-top: 1px solid var(--line); }
.error-card { border-bottom: 1px solid var(--line); padding: 0 2px; }
.error-card summary { display: flex; align-items: center; gap: 20px; padding: 21px 7px; cursor: pointer; list-style: none; }
.error-card summary::-webkit-details-marker { display: none; }
.error-code { font: 700 23px/1.2 Georgia, serif; color: var(--ink); width: 95px; flex-shrink: 0; }
.error-title { flex: 1; min-width: 0; }
.error-title strong { display: block; font-size: 16px; }
.error-title small { color: var(--muted); font: 11px/1.75 Consolas, monospace; overflow-wrap: anywhere; display: block; margin-top: 3px; }
.owner { display: flex; align-items: center; gap: 7px; border-radius: 4px; font-size: 10px; white-space: nowrap; padding: 5px 8px; background: #eaf0e3; color: #467052; }
.owner.us { background: #f4e7d8; color: #9a552e; }
.owner.check { background: #e5edf0; color: #3e6c87; }
.expand-icon { font-size: 22px; color: var(--muted); width: 18px; text-align: center; }
.error-card[open] .expand-icon { transform: rotate(45deg); }
.error-card[open] summary { padding-bottom: 16px; }
.error-body { padding: 0 10px 24px 122px; font-size: 13px; max-width: 1050px; }
.error-body .cause { color: var(--muted); line-height: 1.85; margin-bottom: 14px; }
.error-body ol { margin: 0; padding-left: 20px; }
.error-body li { padding: 3px 0; }
.aftercare { font-size: 12px; margin-top: 15px; padding: 11px 15px; background: var(--note); border-radius: 4px; color: var(--muted); }
.aftercare strong { color: var(--ink); }
.notice { background: var(--note); padding: 18px 22px; margin-top: 24px; border-left: 3px solid #acb593; border-radius: 0 4px 4px 0; font-size: 13px; }
.notice p { font-size: 12px; color: var(--muted); margin: 6px 0 0; }
.empty-state { padding: 36px; text-align: center; background: var(--note); border-radius: 6px; font-size: 14px; }
.empty-state p { color: var(--muted); font-size: 13px; max-width: 520px; margin: 10px auto 17px; }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; column-gap: 32px; align-items: start; }
.faq-grid details { border-bottom: 1px solid var(--line); padding: 18px 2px; }
.faq-grid summary { font-weight: 700; font-size: 14px; cursor: pointer; line-height: 1.75; }
.faq-grid p { font-size: 13px; color: var(--muted); margin: 13px 0 3px; line-height: 1.95; }
.support-section { display: grid; grid-template-columns: 1.05fr 1fr; gap: 46px; padding: 55px 36px; margin: 60px -36px 40px; background: #233d32; color: #fbf7eb; border-radius: 8px; }
.support-section .eyebrow { color: #b4c0ac; }
.support-section h2 { font-size: 43px; line-height: 1.35; }
.support-copy > p:not(.eyebrow) { font-size: 14px; color: #cad1c2; margin: 20px 0; }
.support-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.support-actions .button { font-size: 12px; padding: 12px 14px; gap: 12px; }
.support-button { border-color: #5c7061; background: none; color: #f7f4e9; }
.support-copy .support-note { font-size: 11px !important; color: #adbdab !important; max-width: 360px; }
.support-checklist { background: #304c3c; border: 1px solid #4d6651; padding: 26px 27px; border-radius: 6px; }
.support-checklist h3 { font-size: 16px; }
.support-checklist ul { font-size: 12px; color: #d8ddcc; margin: 16px 0 19px; padding-left: 18px; }
.support-checklist li { margin: 6px 0; }
.key-warning { border-top: 1px solid #4d6651; padding-top: 16px; color: #d4ceae; font-size: 11px; line-height: 1.85; }
.copy-template { width: 100%; border: 0; border-top: 1px solid #4d6651; color: #f4eedf; background: none; padding: 15px 0 0; margin-top: 16px; font-size: 12px; text-align: left; display: flex; justify-content: space-between; }
footer { display: flex; justify-content: space-between; gap: 16px; color: var(--muted); font-size: 10px; padding: 10px 0 35px; flex-wrap: wrap; }
footer a { margin-left: 20px; text-decoration: underline; text-underline-offset: 4px; }
#toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: var(--card); border: 1px solid var(--line); padding: 10px 18px; border-radius: 6px; font-size: 13px; z-index: 100; box-shadow: 0 6px 20px #0002; max-width: 90vw; text-align: center; }
@media (min-width: 651px) {
  [data-embedded="true"] .masthead { padding-right: 155px; }
}
@media (max-width: 950px) {
  .masthead { padding-inline: 26px; }
  .masthead nav { gap: 17px; }
  .hero { gap: 30px; padding-top: 50px; }
  .hero-note { padding: 24px 22px; }
  .margin-note { display: none; }
  .manual-header { align-items: start; flex-direction: column; gap: 18px; }
  .config-grid { grid-template-columns: 1fr; }
  .config-grid > div:nth-child(even) { padding-left: 0; border-left: 0; }
  .error-code { width: 76px; }
  .error-card summary { gap: 14px; }
  .error-body { padding-left: 102px; }
  .support-section { gap: 28px; padding-inline: 28px; }
}
@media (max-width: 650px) {
  .masthead { padding: 17px 20px; align-items: start; flex-direction: column; gap: 19px; }
  [data-embedded="true"] .masthead { padding-top: 52px; }
  .brand { font-size: 20px; }
  .masthead nav { width: 100%; justify-content: space-between; gap: 10px; font-size: 11px; }
  .nav-support { padding: 4px 8px; }
  main { padding-inline: 20px; }
  .hero { grid-template-columns: 1fr; padding: 39px 0 33px; gap: 32px; }
  h1 { font-size: clamp(38px, 11vw, 46px); letter-spacing: -1.5px; }
  .hero-description { font-size: 15px; margin-top: 18px; }
  .hero-actions { gap: 10px; margin-top: 22px; }
  .hero-actions .button { font-size: 12px; padding: 11px 12px; gap: 14px; }
  .hero-note { transform: rotate(.6deg); padding: 22px; }
  .route-step { padding: 16px 0 10px; }
  .quick-links { grid-template-columns: 1fr 1fr; }
  .quick-links a { padding: 13px 10px; font-size: 12px; }
  .quick-links a:nth-child(2) { border-right: 0; }
  .quick-links a:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section { padding: 41px 0; }
  .section-title { gap: 14px; margin-bottom: 21px; }
  .section-number { font-size: 33px; }
  h2 { font-size: 27px; }
  .section-title .eyebrow { font-size: 10px; }
  .intro-strip { padding: 15px 17px; }
  .intro-strip strong { font-size: 13px; }
  .setup-steps > li { gap: 13px; padding: 23px 0; }
  .step-no { width: 27px; height: 27px; font-size: 17px; }
  .setup-steps h3 { font-size: 17px; }
  .setup-steps p { font-size: 13px; }
  .inline-actions { gap: 13px; }
  .inline-actions a { font-size: 11px; }
  .tag { font-size: 9px; padding: 2px 5px; margin-left: 3px; }
  .mini-flow { gap: 7px; }
  .mini-flow span { font-size: 10px; padding: 6px 8px; }
  .manual { padding: 20px 16px; margin-top: 27px; }
  .manual-header h3 { font-size: 20px; }
  .tabs button { font-size: 11px; padding: 7px 10px; }
  .config-grid > div { padding: 13px 0; }
  .config-grid dd { font-size: 12px; }
  .search-wrap { display: block; }
  .search-label { padding-inline: 12px; }
  .search-label input { font-size: 12px; padding-block: 13px; }
  #result-count { display: block; margin-top: 8px; }
  .filters { gap: 7px; }
  .filters button { font-size: 10px; padding: 7px 8px; }
  .error-card summary { flex-wrap: wrap; gap: 6px 12px; padding: 19px 0; }
  .error-code { width: 72px; font-size: 18px; letter-spacing: -.5px; }
  .error-title { flex-basis: calc(100% - 104px); }
  .error-title strong { font-size: 14px; }
  .error-title small { font-size: 10px; }
  .owner { margin-left: 84px; font-size: 9px; }
  .expand-icon { margin-left: auto; font-size: 19px; }
  .error-body { padding: 0 0 20px; font-size: 12px; }
  .aftercare { font-size: 11px; }
  .faq-grid { grid-template-columns: 1fr; }
  .support-section { margin: 39px -20px 25px; padding: 32px 20px; border-radius: 0; grid-template-columns: 1fr; gap: 24px; }
  .support-section h2 { font-size: 35px; }
  .support-checklist { padding: 22px; }
  .empty-state { padding: 26px 17px; }
}
:root[data-theme="dark"] { color-scheme: dark; --paper: #141b20; --card: #202a2c; --ink: #e5ebdf; --muted: #b1bdb1; --orange: #f5aa75; --line: #3d4941; --note: #28342e; --green: #b9dec0; }
[data-theme="dark"] .primary, [data-theme="dark"] .recommended .step-no { background: #b74c23; color: #fff5e8; }
[data-theme="dark"] .primary:hover { background: #ce6033; }
[data-theme="dark"] .underline::after { background: #826227; }
[data-theme="dark"] .tag, [data-theme="dark"] .owner.us { background: #48382b; color: #f4c296; }
[data-theme="dark"] .owner, [data-theme="dark"] .mini-flow .flow-end { background: #2d4534; color: #b9dec0; }
[data-theme="dark"] .owner.check { background: #2b3d49; color: #bedbeb; }
[data-theme="dark"] input::placeholder { color: #a7b5a7; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }