:root {
  --ink: #17191d;
  --muted: #62666d;
  --paper: #f7f8f5;
  --white: #ffffff;
  --line: #d8dcd6;
  --red: #d9433e;
  --red-dark: #ac2e2a;
  --green: #168b73;
  --gold: #e8aa27;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, Helvetica, sans-serif; line-height: 1.7; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }

.site-header { position: sticky; top: 0; z-index: 30; background: rgba(247, 248, 245, .96); border-bottom: 1px solid var(--line); }
.header-inner { width: min(calc(100% - 48px), var(--max)); min-height: 72px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; }
.brand img { width: 42px; height: 42px; border-radius: 6px; }
.site-nav { display: flex; align-items: center; gap: 8px; }
.site-nav a { min-height: 42px; display: inline-flex; align-items: center; padding: 0 14px; font-size: 14px; font-weight: 650; border-bottom: 2px solid transparent; }
.site-nav a.active { color: var(--red); border-color: var(--red); }
.site-nav .nav-download { margin-left: 8px; padding-inline: 20px; color: var(--white); background: var(--ink); border: 0; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 1px solid var(--line); background: var(--white); }
.menu-toggle span { display: block; height: 2px; margin: 4px 0; background: var(--ink); }

.section-inner, .hero-inner, .footer-inner { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; }
.hero { background: var(--paper); border-bottom: 1px solid var(--line); overflow: hidden; }
.hero-inner { min-height: 650px; display: grid; grid-template-columns: minmax(0, .95fr) minmax(460px, 1.05fr); align-items: center; gap: 64px; padding: 46px 0 54px; }
.eyebrow { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; margin-bottom: 16px; color: var(--muted); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.eyebrow span:first-child { padding: 4px 8px; color: var(--white); background: var(--green); }
.hero h1, .inner-hero h1 { max-width: 640px; margin: 0; font-size: 58px; line-height: 1.08; font-weight: 900; letter-spacing: 0; }
.desktop-heading-line { display: block; }
.mobile-heading-line { display: inline; }
.hero-copy > p, .inner-hero-grid > div > p { max-width: 620px; margin: 22px 0 0; color: #4f5359; font-size: 17px; }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 28px; }
.primary-action { min-width: 132px; min-height: 50px; display: inline-flex; align-items: center; justify-content: center; padding: 12px 24px; color: var(--white); background: var(--red); font-weight: 800; border: 2px solid var(--red); }
.primary-action:hover { background: var(--red-dark); border-color: var(--red-dark); }
.text-action { font-weight: 750; border-bottom: 1px solid var(--ink); }
.hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); margin: 32px 0 0; border-top: 1px solid var(--line); }
.hero-facts div { padding: 15px 10px 0 0; }
.hero-facts dt { color: var(--red); font-size: 12px; font-weight: 900; }
.hero-facts dd { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.hero-media { position: relative; height: 540px; display: flex; align-items: center; justify-content: center; isolation: isolate; }
.phone { position: absolute; margin: 0; padding: 8px; background: var(--white); border: 2px solid var(--ink); box-shadow: 12px 12px 0 rgba(23, 25, 29, .12); }
.phone img { width: auto; max-width: 400px; height: auto; object-fit: contain; }
.phone-main { left: 62px; top: 30px; z-index: 2; transform: rotate(-2deg); }
.phone-main img { height: 430px; }
.phone-secondary { right: 35px; top: 112px; z-index: 3; transform: rotate(3deg); border-color: var(--green); }
.phone-secondary img { height: 326px; }
.progress-track { position: absolute; left: 0; right: 0; bottom: 42px; height: 5px; background: var(--line); z-index: 0; }
.progress-track::before { content: ""; position: absolute; width: 72%; height: 100%; background: var(--red); }
.progress-track i { position: absolute; top: 50%; width: 18px; height: 18px; background: var(--paper); border: 4px solid var(--red); transform: translate(-50%, -50%); }
.progress-track i:nth-child(1) { left: 0; }.progress-track i:nth-child(2) { left: 46%; }.progress-track i:nth-child(3) { left: 72%; border-color: var(--green); }
.resume-marker { position: absolute; right: 0; bottom: 12px; z-index: 4; padding: 8px 12px; color: var(--white); background: var(--ink); line-height: 1.3; }
.resume-marker strong, .resume-marker span { display: block; }.resume-marker span { font-size: 11px; color: #d9ded9; }

.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 34px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.section-heading > span { color: var(--red); font-size: 11px; font-weight: 900; }
.section-heading h2 { margin: 0; font-size: 34px; line-height: 1.15; letter-spacing: 0; }
.workflow-band, .features-section, .guide-strip, .gallery-section, .faq-preview { padding: 78px 0; }
.workflow-band { background: var(--white); }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; border: 1px solid var(--line); }
.timeline li { min-height: 190px; padding: 24px; border-right: 1px solid var(--line); }
.timeline li:last-child { border-right: 0; }
.timeline li > span { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; color: var(--white); background: var(--ink); font-size: 11px; font-weight: 800; }
.timeline li:nth-child(2) > span { background: var(--red); }.timeline li:nth-child(3) > span { background: var(--green); }.timeline li:nth-child(4) > span { color: var(--ink); background: var(--gold); }
.timeline h3 { margin: 18px 0 6px; font-size: 18px; }.timeline p { margin: 0; color: var(--muted); font-size: 14px; }
.features-section { background: #eef1ec; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.feature-grid article { min-height: 200px; padding: 30px; background: var(--paper); }
.feature-grid b { color: var(--red); font-size: 12px; }.feature-grid h3 { margin: 32px 0 8px; font-size: 22px; }.feature-grid p { margin: 0; color: var(--muted); }
.guide-strip { background: var(--ink); color: var(--white); }
.guide-strip .section-heading { align-self: stretch; margin: 0; border-color: #3d4147; }
.guide-layout { display: grid; grid-template-columns: 280px 1fr; gap: 60px; }
.guide-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #3d4147; }
.guide-links a { min-height: 180px; padding: 24px; background: var(--ink); transition: background .2s ease; }.guide-links a:hover { background: #262a30; }
.guide-links span { color: var(--gold); font-size: 12px; }.guide-links strong, .guide-links small { display: block; }.guide-links strong { margin-top: 52px; }.guide-links small { color: #aeb5bc; }
.gallery-section { background: var(--white); }
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.gallery-grid figure { margin: 0; border: 1px solid var(--line); }
.image-stage { height: 430px; display: flex; align-items: center; justify-content: center; padding: 24px; overflow: hidden; background: #eef1ec; }
.image-stage img { width: auto; max-width: 400px; height: 100%; object-fit: contain; box-shadow: 0 12px 28px rgba(23,25,29,.12); }
.gallery-grid figcaption { min-height: 82px; display: flex; align-items: center; gap: 18px; padding: 18px; }.gallery-grid figcaption span { color: var(--red); font-size: 11px; }
.faq-preview { background: var(--paper); }
.faq-preview-grid { display: grid; grid-template-columns: 300px 1fr; gap: 72px; }
.faq-preview-grid .section-heading { display: block; margin: 0; }.faq-preview-grid .section-heading h2 { margin-top: 70px; }
.faq-short-list a { display: grid; grid-template-columns: minmax(200px, .8fr) 1fr; gap: 30px; padding: 20px 0; border-bottom: 1px solid var(--line); }.faq-short-list a span { color: var(--muted); }.faq-short-list .all-faq { display: inline-flex; gap: 10px; font-weight: 800; border-bottom-color: var(--ink); }
.download-band { padding: 46px 0; color: var(--white); background: var(--red); }
.download-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }.download-band span { font-size: 11px; font-weight: 850; }.download-band h2 { margin: 4px 0 0; font-size: 30px; }.primary-action.light { color: var(--ink); background: var(--white); border-color: var(--white); }

.site-footer { padding: 48px 0; color: #c2c7cc; background: #111317; }
.footer-inner { text-align: center; }.footer-brand { display: flex; align-items: center; justify-content: center; gap: 10px; color: var(--white); font-size: 18px; }.footer-brand img { border-radius: 4px; }.footer-links { display: flex; justify-content: center; gap: 28px; margin: 22px 0; font-size: 13px; }.site-footer p { max-width: 760px; margin: 0 auto 8px; font-size: 12px; text-align: center; }.site-footer small { display: block; font-size: 11px; text-align: center; }

.inner-hero { background: var(--white); border-bottom: 1px solid var(--line); }.inner-hero-grid { min-height: 560px; display: grid; grid-template-columns: 1fr 380px; align-items: center; gap: 80px; padding-block: 48px; }.inner-hero h1 { font-size: 50px; }.inner-hero .primary-action { margin-top: 28px; }.inner-hero-media { position: relative; height: 460px; margin: 0; display: flex; align-items: center; justify-content: center; border-left: 1px solid var(--line); }.inner-hero-media img { width: auto; max-width: 400px; height: 410px; object-fit: contain; box-shadow: 16px 16px 0 #e8ebe6; }.inner-hero-media figcaption { position: absolute; left: 20px; bottom: 0; color: var(--red); font-size: 11px; font-weight: 850; }
.article-section { padding: 76px 0; background: var(--white); }.article-section.tinted { background: #eef1ec; }.article-layout { display: grid; grid-template-columns: 250px minmax(0, 760px); justify-content: space-between; gap: 70px; }.article-layout aside { align-self: start; position: sticky; top: 104px; }.article-layout aside > span { color: var(--red); font-size: 11px; font-weight: 900; }.article-layout aside h2 { margin: 14px 0 0; font-size: 30px; }.article-copy > p { margin: 0 0 22px; color: #454a50; font-size: 16px; }.article-copy h3 { margin: 38px 0 10px; font-size: 22px; }.check-list { display: grid; grid-template-columns: repeat(2, 1fr); margin-top: 30px; border: 1px solid var(--line); }.check-list span { padding: 14px 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }.check-list span:nth-child(2n) { border-right: 0; }.check-list span:nth-last-child(-n+2) { border-bottom: 0; }.check-list span::before { content: "✓"; margin-right: 8px; color: var(--green); font-weight: 900; }.note-panel { margin-top: 30px; padding: 22px; color: var(--white); background: var(--ink); }.note-panel p { margin: 6px 0 0; color: #c8cdd2; }.article-image { display: grid; grid-template-columns: 220px 1fr; align-items: end; gap: 24px; margin: 40px 0 0; padding: 24px; border: 1px solid var(--line); }.article-image img { width: auto; max-width: 400px; height: 420px; object-fit: contain; }.article-image figcaption { color: var(--muted); font-size: 13px; }.numbered-steps { margin: 34px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }.numbered-steps li { display: grid; grid-template-columns: 100px 1fr; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--line); }.numbered-steps span { color: var(--muted); }.article-actions { display: flex; gap: 22px; margin-top: 28px; }.article-actions a { padding-bottom: 2px; font-weight: 800; border-bottom: 1px solid var(--ink); }
.faq-hero .inner-hero-grid { grid-template-columns: 1fr 360px; }.support-index { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }.support-index span { min-height: 100px; display: flex; align-items: end; padding: 18px; background: var(--paper); font-size: 13px; font-weight: 800; }.support-index span:nth-child(2) { color: var(--white); background: var(--green); }.support-index span:nth-child(3) { color: var(--white); background: var(--red); }.support-index span:nth-child(4) { background: var(--gold); }
.faq-section { padding: 78px 0; background: var(--white); }.faq-layout { display: grid; grid-template-columns: 280px 1fr; gap: 72px; }.faq-layout aside { align-self: start; position: sticky; top: 98px; }.faq-layout aside > span { color: var(--red); font-size: 11px; font-weight: 900; }.faq-layout aside h2 { margin: 12px 0; font-size: 32px; }.faq-layout aside p { color: var(--muted); }.faq-search { display: block; margin-top: 24px; }.faq-search span { display: block; margin-bottom: 7px; font-size: 12px; font-weight: 800; }.faq-search input { width: 100%; min-height: 46px; padding: 10px 12px; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 0; }.faq-list { border-top: 1px solid var(--line); }.faq-list details { border-bottom: 1px solid var(--line); }.faq-list summary { min-height: 72px; display: flex; align-items: center; gap: 16px; padding: 18px 42px 18px 0; position: relative; cursor: pointer; font-size: 17px; font-weight: 800; list-style: none; }.faq-list summary::-webkit-details-marker { display: none; }.faq-list summary::after { content: "+"; position: absolute; right: 8px; font-size: 24px; font-weight: 400; }.faq-list details[open] summary::after { content: "−"; }.faq-list summary span { color: var(--red); font-size: 11px; }.faq-list details div { padding: 0 42px 22px 28px; }.faq-list details p { margin: 0; color: var(--muted); }.faq-empty { padding: 30px 0; color: var(--muted); }.support-note { padding: 58px 0; background: #eef1ec; }.support-note .section-inner { display: grid; grid-template-columns: 250px 1fr auto; align-items: center; gap: 50px; }.support-note span { color: var(--red); font-size: 11px; font-weight: 900; }.support-note h2 { margin: 5px 0 0; font-size: 28px; }.support-note p { margin: 0; color: var(--muted); }.support-note a { font-weight: 800; white-space: nowrap; }

@media (max-width: 960px) {
  .hero-inner { grid-template-columns: minmax(0, 1fr) 400px; gap: 24px; }.hero h1 { font-size: 48px; }.phone-main { left: 10px; }.phone-secondary { right: 5px; }
  .timeline { grid-template-columns: repeat(2, 1fr); }.timeline li:nth-child(2) { border-right: 0; }.timeline li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .guide-layout, .faq-preview-grid, .faq-layout { grid-template-columns: 1fr; gap: 36px; }.guide-links { grid-template-columns: repeat(3, 1fr); }.faq-preview-grid .section-heading h2 { margin-top: 20px; }.faq-layout aside { position: static; }
  .inner-hero-grid { grid-template-columns: 1fr 300px; gap: 40px; }.article-layout { grid-template-columns: 200px minmax(0, 1fr); gap: 44px; }.faq-hero .inner-hero-grid { grid-template-columns: 1fr 300px; }.support-note .section-inner { grid-template-columns: 1fr 1fr; }.support-note a { grid-column: 2; }
}

@media (max-width: 720px) {
  .header-inner, .section-inner, .hero-inner, .footer-inner { width: min(calc(100% - 32px), var(--max)); }
  .header-inner { min-height: 64px; }.brand img { width: 38px; height: 38px; }.menu-toggle { display: block; }
  .site-nav { position: fixed; top: 64px; left: 0; right: 0; bottom: 0; display: none; padding: 20px 16px; background: var(--paper); border-top: 1px solid var(--line); overflow: auto; }.menu-open .site-nav { display: block; }.site-nav a { width: 100%; min-height: 54px; justify-content: space-between; padding: 0 12px; border-bottom: 1px solid var(--line); }.site-nav .nav-download { width: calc(100% - 24px); justify-content: center; margin: 20px 12px 0; }
  .hero-inner { min-height: auto; grid-template-columns: 1fr; gap: 16px; padding: 30px 0 28px; }.hero h1, .inner-hero h1 { font-size: 39px; line-height: 1.12; }.desktop-heading-line { display: inline; }.mobile-heading-line { display: block; }.hero-copy > p, .inner-hero-grid > div > p { margin-top: 14px; font-size: 15px; line-height: 1.65; }.hero-actions { margin-top: 20px; }.hero-facts { margin-top: 20px; }.hero-media { height: 275px; }.phone { padding: 5px; box-shadow: 7px 7px 0 rgba(23,25,29,.12); }.phone-main { left: 14%; top: 4px; }.phone-main img { height: 242px; }.phone-secondary { right: 9%; top: 55px; }.phone-secondary img { height: 178px; }.progress-track { bottom: 9px; }.resume-marker { right: 0; bottom: 24px; padding: 5px 8px; }
  .workflow-band, .features-section, .guide-strip, .gallery-section, .faq-preview { padding: 52px 0; }.section-heading { margin-bottom: 24px; }.section-heading h2 { font-size: 28px; }.timeline { grid-template-columns: 1fr; }.timeline li { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }.timeline li:last-child { border-bottom: 0; }.timeline h3 { margin-top: 12px; }
  .feature-grid { grid-template-columns: 1fr; }.feature-grid article { min-height: 0; padding: 24px; }.feature-grid h3 { margin-top: 22px; }.guide-layout { gap: 28px; }.guide-links { grid-template-columns: 1fr; }.guide-links a { min-height: 120px; }.guide-links strong { margin-top: 24px; }
  .gallery-grid { grid-template-columns: 1fr; }.image-stage { height: 400px; }.gallery-grid figcaption { min-height: 72px; }.faq-short-list a { grid-template-columns: 1fr; gap: 4px; }.download-band-inner { align-items: flex-start; flex-direction: column; }.download-band h2 { font-size: 25px; }
  .inner-hero-grid, .faq-hero .inner-hero-grid { min-height: auto; grid-template-columns: 1fr; gap: 28px; padding-block: 34px; }.inner-hero-media { height: 300px; border-left: 0; border-top: 1px solid var(--line); }.inner-hero-media img { height: 260px; }.article-section { padding: 52px 0; }.article-layout { grid-template-columns: 1fr; gap: 24px; }.article-layout aside { position: static; padding-bottom: 14px; border-bottom: 1px solid var(--line); }.article-layout aside h2 { font-size: 26px; }.check-list { grid-template-columns: 1fr; }.check-list span { border-right: 0; }.check-list span:nth-last-child(2) { border-bottom: 1px solid var(--line); }.article-image { grid-template-columns: 1fr; }.article-image img { justify-self: center; height: 360px; }.numbered-steps li { grid-template-columns: 70px 1fr; }.support-index { margin-top: 6px; }.faq-section { padding: 52px 0; }.faq-layout { gap: 26px; }.faq-list summary { font-size: 15px; }.faq-list details div { padding-left: 27px; padding-right: 18px; }.support-note .section-inner { grid-template-columns: 1fr; gap: 18px; }.support-note a { grid-column: auto; }
}

@media (max-width: 390px) {
  .hero h1, .inner-hero h1 { font-size: 36px; }.hero-actions { gap: 14px; }.primary-action { min-width: 120px; padding-inline: 18px; }.text-action { font-size: 14px; }.hero-facts dd { font-size: 12px; }.phone-main { left: 10%; }.phone-secondary { right: 5%; }.image-stage { height: 360px; }.article-actions { flex-direction: column; align-items: flex-start; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }