:root {
  --ink: #221b0b;
  --muted: #6f603c;
  --yellow: #ffd21f;
  --line: #f0df9a;
  --dark: #101114;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fffdf5; font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: auto; }
.site-header { position: absolute; z-index: 10; top: 0; left: 50%; transform: translateX(-50%); width: min(calc(100% - 48px), 1180px); height: 78px; display: flex; align-items: center; gap: 34px; color: #fff; border-bottom: 1px solid rgba(255,255,255,.2); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; white-space: nowrap; }
.brand b { color: var(--yellow); }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.6); border-radius: 50%; font: 800 19px Arial, sans-serif; }
.site-header nav { display: flex; gap: 34px; margin-left: auto; }
.site-header nav a { color: #f8efd0; font-size: 13px; }
.button { min-height: 52px; padding: 0 25px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; border-radius: 999px; background: var(--yellow); color: #281c00; box-shadow: 0 12px 30px rgba(238,169,0,.28); font-size: 16px; font-weight: 800; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); background: #ffe45c; }
.button-small { min-height: 38px; padding: 0 17px; background: #fff; color: #1f1f22; box-shadow: none; font-size: 13px; }
.hero { min-height: 860px; padding: 145px 24px 80px; display: flex; flex-direction: column; align-items: center; overflow: hidden; background: var(--dark); color: #fff; }
.hero-copy { max-width: 860px; text-align: center; }
.eyebrow { display: block; margin-bottom: 14px; color: #e7b71a; font: 800 12px/1 Arial, sans-serif; letter-spacing: 0; }
.hero h1 { margin: 0; font-size: 72px; line-height: 1.08; letter-spacing: 0; }
.hero h1 strong { color: var(--yellow); }
.hero-lead { max-width: 620px; margin: 24px auto 0; color: #d7d2c4; font-size: 17px; line-height: 1.8; }
.hero-actions { margin-top: 28px; display: flex; align-items: center; justify-content: center; gap: 20px; }
.ghost-link { padding: 8px 0; border-bottom: 1px solid #977f32; color: #fff1b4; }
.hero-points { margin-top: 22px; display: flex; justify-content: center; gap: 24px; color: #aaa48f; font-size: 12px; }
.hero-points span::before { content: "✓"; margin-right: 6px; color: var(--yellow); }
.hero-media { width: min(100%, 1100px); margin: 58px auto 0; overflow: hidden; border: 8px solid #211f18; border-radius: 8px; background: #fff; box-shadow: 0 0 80px rgba(255,205,37,.22); }
.hero-media img, .wide-media img, .feature-media img { aspect-ratio: 16 / 9; object-fit: cover; }
.section { max-width: var(--max); margin: auto; padding: 112px 24px; }
.heading { max-width: 760px; margin: 0 auto 44px; text-align: center; }
.heading h2, .feature-copy h2 { margin: 0; font-size: 48px; line-height: 1.15; }
.heading p, .feature-copy p { margin: 18px 0 0; color: var(--muted); font-size: 17px; line-height: 1.85; }
.wide-media, .feature-media { margin: 0; overflow: hidden; border-radius: 8px; background: #fff4b5; box-shadow: 0 18px 50px rgba(151,112,0,.13); }
.steps { margin: 0; padding: 32px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); list-style: none; }
.steps li { padding: 25px; display: flex; gap: 16px; background: #fffdf5; }
.steps b { color: #e2a400; font: 800 18px Arial, sans-serif; }
.steps strong { font-size: 17px; }
.steps p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.feature-section { padding: 30px max(24px, calc((100vw - var(--max)) / 2)); background: #fff8d5; }
.feature-row { padding: 80px 0; display: grid; grid-template-columns: .78fr 1.22fr; gap: 70px; align-items: center; border-bottom: 1px solid var(--line); }
.feature-row:last-child { border-bottom: 0; }
.feature-row.reverse { grid-template-columns: 1.22fr .78fr; }
.feature-row.reverse .feature-copy { order: 2; }
.feature-row.reverse .feature-media { order: 1; }
.feature-copy ul { margin: 25px 0 0; padding: 0; display: grid; gap: 11px; color: #58481f; list-style: none; }
.feature-copy li::before { content: "✓"; margin-right: 10px; color: #e1a400; font-weight: 900; }
.text-action { margin-top: 25px; padding-bottom: 5px; display: inline-flex; gap: 8px; border-bottom: 1px solid #d8b13a; color: #9a6900; font-weight: 800; }
.template-band { padding: 112px max(24px, calc((100vw - var(--max)) / 2)); background: #f4c313; color: #241b02; }
.template-band .eyebrow { color: #6d4b00; }
.template-band .heading p { color: #5f480c; }
.custom { display: grid; grid-template-columns: 1.15fr .85fr; gap: 72px; align-items: center; }
.tags { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 9px; }
.tags span { padding: 9px 14px; border-radius: 999px; background: #fff2b5; color: #825a00; font-size: 13px; font-weight: 700; }
.efficiency { padding-top: 90px; }
.closing { width: min(calc(100% - 48px), 1180px); min-height: 300px; margin: 0 auto 110px; padding: 66px 24px; display: flex; align-items: center; justify-content: center; overflow: hidden; border: 1px solid #302d24; border-radius: 8px; background: #101114; box-shadow: 0 22px 65px rgba(30,22,0,.16); }
.closing-content { max-width: 680px; text-align: center; }
.closing-content .eyebrow { margin-bottom: 13px; color: var(--yellow); }
.closing-content h2 { margin: 0; color: #fff; font-size: 42px; line-height: 1.2; }
.closing-content p { margin: 14px 0 25px; color: #c8c4b8; font-size: 16px; }
.closing .button { min-width: 220px; background: #fff; color: #17140e; box-shadow: 0 10px 0 #d9ad16; }
.closing .button:hover { background: var(--yellow); box-shadow: 0 8px 0 #b98300; }
footer { padding: 45px max(24px, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 1fr auto; gap: 10px 30px; background: #17140e; color: #fff6d1; }
footer p, footer small { margin: 0; color: #c6b98d; text-align: right; }
footer small { font-size: 12px; }
@media (max-width: 850px) {
  .site-header nav { display: none; }
  .site-header { width: calc(100% - 32px); gap: 12px; }
  .site-header .button-small { margin-left: auto; }
  .hero { min-height: 0; padding: 120px 18px 55px; }
  .hero h1 { font-size: 52px; }
  .hero-lead { font-size: 15px; }
  .heading h2, .feature-copy h2, .closing-content h2 { font-size: 38px; }
  .feature-row, .feature-row.reverse, .custom { grid-template-columns: 1fr; gap: 34px; }
  .feature-row.reverse .feature-copy, .feature-row.reverse .feature-media { order: initial; }
  .steps { grid-template-columns: 1fr; }
  .section { padding: 78px 18px; }
  .feature-section { padding: 15px 18px; }
  .template-band { padding: 78px 18px; }
  .closing { width: calc(100% - 36px); min-height: 250px; margin-bottom: 72px; padding: 52px 18px; }
  .closing-content h2 { font-size: 32px; }
  .closing-content p { font-size: 14px; margin: 12px 0 20px; }
  .closing .button { min-height: 42px; font-size: 13px; }
  footer { grid-template-columns: 1fr; }
  footer p, footer small { text-align: left; }
}
@media (max-width: 560px) {
  .brand { font-size: 16px; }
  .brand-mark { width: 30px; height: 30px; font-size: 16px; }
  .button-small { padding: 0 13px; }
  .button-small span { display: none; }
  .hero { padding-top: 108px; }
  .hero h1 { font-size: 38px; }
  .hero-actions { flex-direction: column; gap: 8px; }
  .hero-points { gap: 12px; flex-wrap: wrap; }
  .hero-media { margin-top: 36px; border-width: 4px; }
  .heading h2, .feature-copy h2 { font-size: 32px; }
}