:root {
  color: #20332b;
  background: #f5f5ef;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  --green: #205b48;
  --deep: #153e33;
  --orange: #e98d55;
  --paper: #fffdf8;
  --line: #dfe4dd;
  --muted: #68776f;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; min-width: 320px; background: #f5f5ef; }
a { color: inherit; }

.public-header {
  position: sticky;
  z-index: 20;
  top: 0;
  min-height: 70px;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(208, 217, 209, .9);
  background: rgba(247, 248, 243, .94);
  backdrop-filter: blur(16px);
}

.public-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--deep); text-decoration: none; font-size: 21px; }
.public-brand span { width: 33px; height: 33px; display: grid; place-items: center; border-radius: 10px; color: var(--deep); background: #f1ad6c; transform: rotate(-4deg); }
.public-header nav { display: flex; gap: 29px; margin-left: auto; }
.public-header nav a { padding: 24px 0 21px; border-bottom: 2px solid transparent; color: #66746d; text-decoration: none; font-size: 14px; }
.public-header nav a:hover, .public-header nav a.active { border-color: var(--green); color: var(--green); }
.header-cta { padding: 10px 16px; border-radius: 10px; color: #fff; background: var(--green); text-decoration: none; font-size: 14px; font-weight: 650; }

.article-hero, .about-hero {
  padding: 74px max(24px, calc((100vw - 980px) / 2)) 64px;
  border-bottom: 1px solid var(--line);
  background: radial-gradient(circle at 85% 20%, rgba(233, 141, 85, .17), transparent 25%), radial-gradient(circle at 12% 75%, rgba(32, 91, 72, .09), transparent 25%), #f7f8f3;
}
.breadcrumbs { display: flex; gap: 9px; margin-bottom: 34px; color: #849088; font-size: 12px; }
.breadcrumbs a { color: var(--green); text-decoration: none; }
.eyebrow, .section-kicker { display: block; color: var(--orange); font-size: 12px; font-weight: 750; letter-spacing: .16em; }
.article-hero h1, .about-hero h1 { max-width: 900px; margin: 16px 0 23px; color: var(--deep); font-family: "Songti SC", STSong, SimSun, serif; font-size: clamp(38px, 5.4vw, 64px); line-height: 1.25; letter-spacing: -.045em; }
.hero-lead, .about-hero > p { max-width: 850px; margin: 0; color: #5d6e65; font-size: 18px; line-height: 1.95; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 25px; color: #89938e; font-size: 12px; }
.article-meta span + span { position: relative; }
.article-meta span + span::before { position: absolute; left: -13px; content: "·"; }
.hero-actions { display: flex; gap: 12px; margin-top: 31px; }
.primary-action, .secondary-action { min-height: 48px; display: inline-flex; align-items: center; gap: 18px; padding: 0 20px; border-radius: 11px; text-decoration: none; font-size: 14px; font-weight: 650; }
.primary-action { color: #fff; background: var(--green); box-shadow: 0 13px 28px rgba(32, 91, 72, .17); }
.secondary-action { border: 1px solid #ccd6cf; color: var(--green); background: rgba(255, 255, 255, .65); }

.quick-answer { max-width: 980px; margin: 36px auto; padding: 26px 30px; border: 1px solid #d7e1d8; border-left: 4px solid var(--green); border-radius: 12px; background: #f0f5ef; }
.quick-answer > b { display: block; margin-bottom: 12px; color: var(--deep); font-size: 15px; }
.quick-answer ol { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 34px; margin: 0; padding-left: 20px; color: #52655b; font-size: 14px; line-height: 1.7; }

.article-layout { max-width: 1120px; display: grid; grid-template-columns: 190px minmax(0, 790px); gap: 68px; margin: 60px auto 90px; padding: 0 24px; }
.toc { position: sticky; top: 100px; align-self: start; display: grid; gap: 2px; padding: 18px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255, 255, 255, .56); }
.toc b { margin-bottom: 9px; color: var(--deep); font-size: 13px; }
.toc a { padding: 7px 0; color: #728078; text-decoration: none; font-size: 12px; }
.toc a:hover { color: var(--green); }
.article-body { min-width: 0; }
.article-body section { margin-bottom: 80px; }
.article-body h2, .about-page h2 { margin: 10px 0 22px; color: var(--deep); font-family: "Songti SC", STSong, SimSun, serif; font-size: clamp(28px, 3vw, 38px); line-height: 1.4; letter-spacing: -.025em; }
.article-body h3 { margin: 0 0 10px; color: #28493d; font-size: 20px; }
.article-body p, .article-body li { color: #56675e; font-size: 16px; line-height: 1.95; }
.article-body p { margin: 0 0 18px; }
.article-body ul { margin: 16px 0; padding-left: 21px; }
.article-body li + li { margin-top: 5px; }
.article-body a { color: var(--green); text-underline-offset: 3px; }
.note { padding: 17px 19px; border: 1px solid #ead5bc; border-radius: 11px; background: #fff8ec; }

.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 27px 0; }
.audience-grid article { padding: 20px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255, 255, 255, .67); }
.audience-grid b { color: var(--deep); font-size: 15px; }
.audience-grid p { margin: 8px 0 0; font-size: 13px; line-height: 1.75; }

.phase-list { display: grid; gap: 17px; }
.phase-list > article { display: grid; grid-template-columns: 74px 1fr; gap: 22px; padding: 27px; border: 1px solid #dbe2dc; border-radius: 16px; background: var(--paper); box-shadow: 0 12px 34px rgba(35, 62, 50, .04); }
.phase-index { width: 66px; height: 66px; display: grid; place-items: center; border-radius: 17px; color: var(--green); background: #e8f0e9; font-size: 13px; font-weight: 750; }
.phase-list p { font-size: 14px; line-height: 1.85; }
.phase-list li { font-size: 13px; line-height: 1.75; }
.phase-list a { display: inline-block; margin-top: 4px; font-size: 13px; font-weight: 700; }

.course-map { display: grid; gap: 8px; margin-top: 27px; }
.course-map > div, .course-map > a { display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 14px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255, 255, 255, .7); text-decoration: none; }
.course-map > a { border-color: #78a18b; background: #edf5ee; }
.course-map > * > span { color: #91a098; font-family: Georgia, serif; font-size: 21px; }
.course-map b { color: #28483c; font-size: 14px; }
.course-map p { margin: 3px 0 0; font-size: 12px; line-height: 1.5; }
.course-map em { padding: 4px 8px; border-radius: 6px; color: #7b897f; background: #eff2ef; font-size: 10px; font-style: normal; }
.course-map > a em { color: #276449; background: #dcecdf; }

.practice-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 26px 0; }
.practice-steps article { display: flex; gap: 15px; padding: 20px; border: 1px solid var(--line); border-radius: 13px; background: #fff; }
.practice-steps article > span { width: 34px; height: 34px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 10px; color: #fff; background: var(--green); font-size: 13px; }
.practice-steps h3 { font-size: 16px; }
.practice-steps p { margin: 0; font-size: 13px; line-height: 1.7; }
.mistake-list { display: grid; gap: 1px; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--line); }
.mistake-list article { padding: 21px 23px; background: #fff; }
.mistake-list b { color: #304f43; }
.mistake-list p { margin: 6px 0 0; font-size: 14px; line-height: 1.75; }
.faq-list { display: grid; gap: 9px; }
.faq-list details { padding: 0 21px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255, 255, 255, .72); }
.faq-list summary { padding: 19px 0; color: #2b4a3e; cursor: pointer; font-size: 15px; font-weight: 700; }
.faq-list p { padding: 0 0 19px; margin: 0; font-size: 14px; }
.sources { padding: 25px 28px; border-radius: 14px; background: #eaf0ea; }
.sources h2 { font-size: 24px; }
.sources p, .sources li { font-size: 13px; line-height: 1.8; }

.article-cta { max-width: 1030px; display: flex; align-items: center; justify-content: space-between; gap: 42px; margin: 0 auto 90px; padding: 46px 50px; border: 1px solid #e1c5a7; border-radius: 20px; background: radial-gradient(circle at 90% 15%, rgba(235, 151, 92, .2), transparent 28%), #fff8ed; }
.article-cta span, .contact-section > div > span { color: var(--orange); font-size: 11px; font-weight: 750; letter-spacing: .1em; }
.article-cta h2 { margin: 9px 0; color: var(--deep); font-family: "Songti SC", STSong, SimSun, serif; font-size: 28px; }
.article-cta p { margin: 0; color: #786f67; font-size: 13px; }
.article-cta > a, .contact-section > a { flex: 0 0 auto; padding: 14px 18px; border-radius: 10px; color: #fff; background: var(--green); text-decoration: none; font-size: 14px; font-weight: 700; }

.about-hero { padding-bottom: 80px; }
.about-hero > p { max-width: 790px; }
.about-mission, .principle-section, .disclosure-section, .review-process, .contact-section { max-width: 1030px; margin: 0 auto; padding: 84px 24px; }
.about-mission { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: start; }
.about-mission > div > span { color: var(--orange); font-size: 12px; font-weight: 750; letter-spacing: .15em; }
.about-mission h2 { margin-top: 10px; }
.about-mission > p { margin: 11px 0 0; color: #56685e; font-size: 16px; line-height: 2; }
.principle-section { max-width: none; padding-inline: max(24px, calc((100vw - 1030px) / 2)); background: #eaf0ea; }
.principle-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.principle-grid article { padding: 25px; border: 1px solid #d8e0d8; border-radius: 14px; background: rgba(255, 255, 255, .72); }
.principle-grid article > span { color: #a1afa7; font-family: Georgia, serif; font-size: 25px; }
.principle-grid h3 { margin: 18px 0 8px; color: #2b4a3e; }
.principle-grid p, .disclosure-list p, .review-process p { margin: 0; color: #64746c; font-size: 13px; line-height: 1.8; }
.disclosure-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 75px; max-width: 1080px; }
.disclosure-list { display: grid; gap: 10px; }
.disclosure-list article { padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.disclosure-list b { color: #2c4b3e; }
.disclosure-list p { margin-top: 7px; }
.review-process { padding-top: 15px; }
.review-process ol { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 0; list-style: none; }
.review-process li { display: flex; gap: 15px; padding: 21px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255, 255, 255, .68); }
.review-process li > span { width: 32px; height: 32px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 9px; color: #fff; background: var(--green); font-size: 12px; }
.review-process b { color: #2c4b3e; }
.review-process p { margin-top: 6px; }
.contact-section { max-width: 1030px; display: flex; align-items: center; justify-content: space-between; gap: 45px; margin-bottom: 90px; padding: 45px 48px; border-radius: 19px; color: #fff; background: var(--deep); }
.contact-section h2 { margin: 10px 0; color: #fff; }
.contact-section p { max-width: 700px; margin: 0; color: rgba(255, 255, 255, .67); font-size: 14px; line-height: 1.8; }
.contact-section > a { color: var(--deep); background: #f1ad6c; }

.public-footer { min-height: 130px; display: flex; align-items: center; justify-content: space-between; gap: 35px; padding: 28px max(24px, calc((100vw - 1180px) / 2)); border-top: 1px solid var(--line); background: #edf1eb; }
.public-footer > div { display: flex; align-items: center; gap: 24px; }
.public-footer p { color: #7c8982; font-size: 12px; }
.public-footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 20px; }
.public-footer nav a { color: #62736a; text-decoration: none; font-size: 12px; }
.public-footer nav a:hover { color: var(--green); }

@media (max-width: 900px) {
  .public-header nav { display: none; }
  .header-cta { margin-left: auto; }
  .article-layout { display: block; }
  .toc { position: static; margin-bottom: 50px; }
  .quick-answer { margin-inline: 24px; }
  .about-mission, .disclosure-section { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 650px) {
  .public-header { min-height: 64px; padding-inline: 18px; }
  .article-hero, .about-hero { padding: 44px 20px 50px; }
  .breadcrumbs { margin-bottom: 26px; }
  .article-hero h1, .about-hero h1 { font-size: 38px; }
  .hero-lead, .about-hero > p { font-size: 15px; line-height: 1.85; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .primary-action, .secondary-action { justify-content: center; }
  .quick-answer { padding: 22px; }
  .quick-answer ol, .audience-grid, .practice-steps, .principle-grid, .review-process ol { grid-template-columns: 1fr; }
  .article-layout { margin-top: 42px; padding-inline: 20px; }
  .article-body section { margin-bottom: 62px; }
  .phase-list > article { grid-template-columns: 1fr; padding: 22px; }
  .phase-index { width: auto; height: 38px; justify-self: start; padding: 0 13px; border-radius: 10px; }
  .course-map > div, .course-map > a { grid-template-columns: 35px 1fr; }
  .course-map em { grid-column: 2; justify-self: start; }
  .article-cta, .contact-section { display: block; margin-inline: 18px; padding: 30px 24px; }
  .article-cta > a, .contact-section > a { display: inline-block; margin-top: 24px; }
  .about-mission, .principle-section, .disclosure-section, .review-process { padding: 64px 20px; }
  .review-process { padding-top: 5px; }
  .public-footer { align-items: flex-start; flex-direction: column; padding-inline: 20px; }
  .public-footer > div { align-items: flex-start; flex-direction: column; gap: 8px; }
  .public-footer p { margin: 0; }
  .public-footer nav { justify-content: flex-start; }
}

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