:root {
  --paper: #faf9f6;
  --ink: #1e2b2a;
  --muted: #596961;
  --green: #0e7c6b;
  --deep: #0a5a4c;
  --mint: #e4f2ee;
  --line: #dce2da;
  --orange: #e8590c;
  --blue: #54678a;
  --ease: cubic-bezier(.23, 1, .32, 1);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; font-size: 15px; line-height: 1.7; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
button, a { touch-action: manipulation; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--green); outline-offset: 5px; }
button, .button, .text-link, summary span { transition: background-color 160ms var(--ease), color 160ms var(--ease), transform 160ms var(--ease); }
img { display: block; max-width: 100%; }
p, h1, h2, h3 { margin: 0; }
h2, h3 { text-wrap: balance; }
button { color: inherit; }
::selection { background: #bedfd6; color: var(--ink); }
.container { width: min(1200px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; left: 20px; top: -80px; z-index: 20; background: white; padding: 12px 20px; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 10; background: #faf9f6f5; border-bottom: 1px solid #e2e5dd; }
.header-inner { height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 25px; font-weight: 750; letter-spacing: -1px; }
.brand-dot { color: var(--green); margin-left: 2px; }
.desktop-nav { display: flex; gap: 32px; font-size: 14px; color: #54655f; }
.desktop-nav a { padding-block: 12px; }
.desktop-nav a:hover, .text-link:hover, .site-footer a:hover { color: var(--green); }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 24px; min-height: 54px; padding: 12px 24px; background: var(--green); color: #fff; border: 1px solid transparent; border-radius: 7px; font-size: 15px; font-weight: 600; white-space: nowrap; }
.button:hover { background: var(--deep); transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button-small { min-height: 44px; padding: 9px 19px; font-size: 13px; gap: 24px; }
.button span { font-size: 20px; font-weight: 400; }
.hero { display: grid; grid-template-columns: 1fr 1.08fr; align-items: center; gap: 36px; min-height: 728px; padding-block: 64px 78px; }
.hero-copy { position: relative; padding-block: 24px 0; }
.eyebrow { color: var(--green); font-size: 11px; font-weight: 600; letter-spacing: 1.6px; line-height: 1.7; }
.hero .eyebrow { display: flex; align-items: center; gap: 10px; font-size: 13px; letter-spacing: 2px; margin-bottom: 28px; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px #e4f2ee; }
h1 { font-size: clamp(34px, 3.6vw, 52px); line-height: 1.45; font-weight: 750; letter-spacing: -2.6px; }
h1 > span { color: var(--green); }
.hero-description { margin-top: 24px; font-size: 17px; color: var(--muted); line-height: 1.9; }
.hero-principle { margin-top: 16px; font-size: 13px; color: var(--muted); }
.hero-principle strong { color: var(--ink); font-weight: 500; }
.hero-actions { margin-top: 30px; display: flex; align-items: center; gap: 24px; }
.text-link { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; min-height: 44px; }
.play-mark { border: 1px solid #8c9c94; border-radius: 50%; height: 24px; width: 24px; display: inline-grid; place-items: center; font-size: 14px; }
.hero-notes { display: flex; gap: 19px; margin-top: 15px; color: var(--muted); font-size: 11px; }
.hero-notes span + span { border-left: 1px solid #c7d2c9; padding-left: 19px; }
.margin-note { display: flex; align-items: center; gap: 15px; font-family: "Songti SC", "SimSun", serif; color: #65766d; margin-top: 46px; font-size: 15px; }
.note-line { height: 1px; width: 35px; background: #9baea0; transform: rotate(-9deg); }
.demo-scene { position: relative; min-width: 0; padding: 35px 28px 96px 35px; isolation: isolate; overflow: clip; overflow-clip-margin: 15px; }
.demo-scene::before { content: ""; position: absolute; z-index: -1; inset: 33px 0 8px; background: #e8eee3; border-radius: 47% 42% 38% 40%; transform: rotate(-8deg); }
.demo-scene::after { content: ""; position: absolute; inset: 12px 12px 26px 12px; border: 1px dashed #c4d3c5; border-radius: 47% 40% 42% 40%; z-index: -1; transform: rotate(10deg); }
.scene-label { position: absolute; top: -4px; right: 21px; display: flex; align-items: center; gap: 14px; font-size: 14px; color: #596b60; font-family: "Songti SC", "SimSun", serif; transform: rotate(3deg); }
.scene-label > span:last-child { font-size: 29px; }
.demo-paper { position: relative; background: #fffefa; border: 1px solid #d9e0d4; padding: 21px 24px 17px; border-radius: 11px; box-shadow: 0 18px 42px -22px #45604155; transform: rotate(-2deg); }
.paper-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid #e7e9e2; }
.mini-brand { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; }
.demo-badge { font-size: 10px; color: #64766b; letter-spacing: 1px; }
.scenario-switch { display: flex; gap: 4px; margin: 14px 0; padding: 3px; background: #efF1eb; border-radius: 6px; }
.scenario-switch button { flex: 1; min-height: 44px; padding: 6px 3px; border: 0; border-radius: 4px; background: transparent; color: var(--muted); font-size: 12px; }
.scenario-switch button[aria-pressed="true"] { background: white; color: var(--green); box-shadow: 0 1px 4px #324d2714; font-weight: 600; }
.speech-card { background: #eaf3ed; border: 1px solid #d8e7dc; border-radius: 7px 7px 7px 0; padding: 13px 15px 16px; min-height: 102px; }
.speech-caption { display: flex; align-items: center; gap: 8px; font-size: 10px; color: #547361; }
.waveform { display: flex; gap: 2px; height: 16px; align-items: center; }
.waveform i { height: 5px; width: 2px; background: var(--green); border-radius: 2px; }
.waveform i:nth-child(even) { height: 10px; }
.waveform i:nth-child(3) { height: 15px; }
.speech-card > p { font-size: 14px; line-height: 1.75; margin-top: 8px; }
.organize-line { display: flex; align-items: center; justify-content: center; gap: 12px; color: #657a6d; font-size: 10px; height: 37px; }
.organize-line > span:first-child, .organize-line > span:last-child { width: 32px; height: 1px; background: #d9e1d6; }
.record-card { background: white; border: 1px solid #d6dfd5; border-radius: 7px; overflow: hidden; transition: border-color 180ms var(--ease); }
.record-top { display: flex; justify-content: space-between; font-size: 10px; padding: 10px 14px; border-bottom: 1px solid #edf0e8; color: #617064; }
.record-status { color: #8b641f; background: #fbf1dc; padding: 0 7px; border-radius: 3px; }
.record-person { display: flex; align-items: center; gap: 10px; padding: 15px 15px 10px; }
.avatar { flex-shrink: 0; width: 36px; height: 36px; display: grid; place-items: center; background: #f5e9d8; border-radius: 50%; color: #835926; font-size: 14px; }
.record-person > div { display: flex; flex-direction: column; min-width: 0; }
.record-person strong { font-size: 14px; }
.record-person > div > span { font-size: 10px; color: #6c7a71; margin-top: 1px; }
.record-person .record-score { color: var(--orange); margin-left: auto; flex-shrink: 0; font-family: "Trebuchet MS", sans-serif; font-size: 26px; line-height: 1; }
.record-score small { font-size: 10px; margin-left: 3px; font-weight: 400; color: #c74a08; }
.record-person .record-score.is-neutral { color: var(--green); font-family: inherit; font-size: 15px; }
.record-description { display: flex; gap: 10px; align-items: flex-start; padding: 4px 15px 14px; }
.record-description > span { font-size: 9px; background: #f6f2eb; color: #785c37; padding: 1px 5px; white-space: nowrap; }
.record-description p { font-size: 11px; line-height: 1.7; color: #59695e; }
.confirm-button { background: var(--green); color: white; border: 0; border-radius: 0; display: flex; align-items: center; justify-content: space-between; min-height: 44px; padding: 10px 15px; width: 100%; font-size: 12px; }
.confirm-button:hover { background: var(--deep); }
.demo-disclaimer { text-align: center; font-size: 10px; color: #657265; padding-top: 12px; }
.confirmation-note { position: absolute; bottom: 23px; left: 7px; right: 8px; margin-left: 30px; display: flex; align-items: center; gap: 11px; background: #fff; border: 1px solid #d7e0d5; border-radius: 6px; box-shadow: 0 8px 18px #273e2610; padding: 12px 17px; transform: rotate(2deg); }
.check-seal { border: 1px solid #9dbb9e; color: var(--green); border-radius: 50%; display: grid; place-items: center; width: 28px; height: 28px; flex-shrink: 0; }
.confirmation-note strong { display: block; font-size: 12px; font-weight: 600; }
.confirmation-note div > span { display: block; color: #657466; font-size: 10px; margin-top: 2px; }
.scene-index { position: absolute; bottom: -7px; right: 23px; color: #6b7a6d; font-size: 10px; letter-spacing: 1px; }
.is-confirmed { border-color: var(--green); }
.is-confirmed .record-status { color: var(--green); background: var(--mint); }
.principle-strip { border-block: 1px solid var(--line); background: #f2f3ed; }
.principles { display: flex; justify-content: space-between; gap: 20px; padding-block: 23px; }
.principles p { font-size: 13px; color: #4f6157; }
.principles p > span { color: #6a8272; font-family: Georgia, serif; font-size: 17px; margin-right: 16px; font-style: italic; }
.section { padding-block: 98px; scroll-margin-top: 10px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 32px; margin-bottom: 48px; }
.section-heading > p { color: var(--muted); font-size: 13px; line-height: 1.9; }
h2 { font-size: 34px; line-height: 1.55; letter-spacing: -1.3px; font-weight: 650; }
.section .eyebrow { margin-bottom: 15px; }
.workflow-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; }
.workflow-step { padding-top: 24px; border-top: 1px solid #bbc9bc; }
.step-number { font-size: 38px; font-family: Georgia, serif; font-weight: 400; color: #2c7460; }
.step-number > span { font-family: "Microsoft YaHei", sans-serif; color: var(--muted); font-size: 11px; margin-left: 8px; }
h3 { font-size: 19px; font-weight: 600; line-height: 1.6; letter-spacing: -.4px; }
.workflow-step h3 { margin: 14px 0 12px; }
.workflow-step > p { color: var(--muted); font-size: 13px; line-height: 1.9; }
.input-chips, .confirm-preview, .report-tabs { margin-top: 23px; display: flex; align-items: center; min-height: 44px; gap: 7px; }
.input-chips > span { background: #eff2e9; border-radius: 4px; padding: 4px 10px; font-size: 11px; color: #53654f; }
.confirm-preview > span { font-size: 11px; border-bottom: 1px solid #cad5c5; padding: 4px 8px; }
.confirm-preview > strong { font-size: 11px; margin-left: auto; color: var(--green); font-weight: 500; }
.report-tabs { gap: 0; font-size: 11px; }
.report-tabs > span { padding: 7px 22px; border: 1px solid #d9e0d1; margin-left: -1px; background: #f3f4ec; }
.report-tabs > span:last-child { padding: 7px 13px; background: transparent; border: 0; font-size: 17px; margin-left: auto; }
.scenarios-section { background: #f0f2eb; }
.feature-grid { display: grid; grid-template-columns: 1.12fr 1fr; gap: 22px; }
.feature { border-radius: 10px; padding: 31px 34px; overflow: hidden; }
.feature-student { background: #fcfcf9; border: 1px solid #e0e5d9; }
.feature-class { background: #e3eddf; border: 1px solid #dbe5d6; }
.feature-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 17px; }
.feature-index { font-size: 11px; color: #516647; letter-spacing: 1px; }
.feature-symbol { font-size: 25px; font-weight: 300; color: #58724e; }
.feature h3 { font-size: 22px; }
.feature > p { font-size: 13px; color: var(--muted); margin-top: 12px; line-height: 1.9; max-width: 420px; }
.student-timeline { margin: 29px 0 0; border-top: 1px solid #e2e6db; padding: 12px 0 0; }
.visual-label { display: block; font-size: 10px; color: #687863; letter-spacing: 1px; margin-bottom: 6px; }
.student-timeline > div { display: flex; align-items: center; gap: 15px; padding: 12px 0; }
.timeline-dot { width: 8px; height: 8px; border-radius: 50%; position: relative; }
.student-timeline > div:not(:last-child) .timeline-dot::after { content: ""; position: absolute; left: 3px; top: 14px; width: 1px; height: 43px; background: #e0e5da; }
.positive { background: var(--orange); }.neutral { background: #639375; }.reminder { background: var(--blue); }
.student-timeline strong { font-size: 12px; font-weight: 500; }
.student-timeline small { display: block; font-size: 10px; color: var(--muted); margin-top: 3px; }
.student-timeline b { margin-left: auto; font-size: 19px; font-weight: 500; }
.student-timeline .neutral-text { font-size: 11px; color: #4d7158; }
.positive-text { color: #c74a08; }.reminder-text { color: var(--blue); }
.class-note { margin: 38px 18px 8px; padding: 29px 27px 25px; background: #fffaf0; border: 1px solid #e6ddc6; box-shadow: 0 6px 14px #52634712; transform: rotate(-3deg); position: relative; }
.class-note > strong { display: block; font-family: "Songti SC", "SimSun", serif; font-size: 21px; margin-top: 14px; }
.class-note > p { font-size: 11px; color: #6f7562; margin: 11px 0 18px; }
.note-pin { position: absolute; width: 83px; height: 24px; background: #bfd4bb96; left: 50%; top: -13px; transform: translateX(-50%) rotate(4deg); }
.neutral-tag { display: inline-block; border: 1px solid #aebea3; color: #52684b; padding: 4px 9px; border-radius: 3px; font-size: 10px; }
.note-date { display: block; font-size: 8px; letter-spacing: 2px; color: #7b826e; margin-top: 22px; }
.feature-report { grid-column: 1 / -1; display: grid; grid-template-columns: .9fr 1fr; gap: 60px; padding-top: 39px; padding-bottom: 0; background: #e8ebdf; border: 1px solid #dce1d2; }
.report-copy { padding-bottom: 35px; }
.report-copy h3 { margin: 15px 0 16px; font-size: 26px; }
.report-copy p { font-size: 13px; color: var(--muted); max-width: 350px; }
.report-copy .text-link { color: var(--deep); margin-top: 20px; }
.report-sheet { background: #fffefb; border: 1px solid #dbdecd; border-radius: 8px 8px 0 0; box-shadow: 0 5px 30px #4a5d3921; transform: rotate(2deg) translateY(15px); align-self: stretch; }
.report-sheet-top { display: flex; gap: 20px; justify-content: space-between; padding: 19px 23px; border-bottom: 1px solid #e3e6dc; }
.report-sheet-top strong { font-size: 14px; font-weight: 500; }
.report-sheet-top > span { font-size: 9px; color: var(--muted); white-space: nowrap; }
.report-body { padding: 24px; }
.report-rule { border-left: 3px solid var(--green); padding-left: 8px; font-size: 12px; font-weight: 600; }
.report-body > p { font-size: 12px; color: #5a6858; line-height: 1.9; margin-top: 13px; }
.source-record { background: #f1f4eb; padding: 12px; margin-top: 17px; font-size: 11px; }
.source-record > span { font-size: 9px; color: var(--muted); }
.source-record > p { margin-top: 3px; display: flex; justify-content: space-between; }
.report-body .report-footnote { font-size: 9px; }
.trust-section { display: grid; grid-template-columns: 1fr 1fr; gap: 95px; }
.serif-line { font-family: "Songti SC", "SimSun", serif; font-weight: 400; color: #526b59; }
.trust-points { display: flex; flex-direction: column; gap: 23px; }
.trust-points article { display: flex; gap: 17px; }
.trust-points article > span { flex-shrink: 0; width: 31px; height: 31px; display: grid; place-items: center; border: 1px solid #c7d4c5; border-radius: 50%; color: var(--green); font-size: 16px; }
.trust-points h3 { font-size: 16px; }
.trust-points p { color: var(--muted); font-size: 12px; margin-top: 7px; line-height: 1.9; }
.plans-section { background: #f2f0e9; border-block: 1px solid #e6e4da; }
.plans-section .eyebrow { color: var(--deep); }
.plans-layout { display: grid; grid-template-columns: .95fr 1fr 1fr; gap: 24px; }
.plans-intro { padding: 8px 15px 0 0; }
.plans-intro h2 { font-size: 31px; }
.plans-intro > p:not(.eyebrow) { color: var(--muted); font-size: 13px; margin-top: 22px; line-height: 1.9; }
.plans-intro .plan-note { font-size: 10px !important; margin-top: 40px !important; color: #687466; }
.plan { background: #fafbf6; border: 1px solid #dce1d2; border-radius: 8px; padding: 27px; display: flex; flex-direction: column; align-items: flex-start; }
.plan-label { font-size: 10px; color: #586c50; letter-spacing: 1px; }
.plan h3 { font-size: 25px; margin-top: 12px; }
.plan > p { font-size: 11px; color: var(--muted); margin-top: 5px; }
.plan ul { list-style: none; padding: 23px 0; margin: 20px 0 0; border-top: 1px solid #dfe5d7; width: 100%; }
.plan li { position: relative; padding-left: 19px; font-size: 12px; margin-bottom: 14px; }
.plan li::before { content: "✓"; position: absolute; left: 0; color: var(--green); }
.plan .button { width: 100%; margin-top: auto; font-size: 12px; min-height: 47px; padding: 9px 13px; gap: 10px; justify-content: space-between; }
.button-outline { background: transparent; color: var(--green); border-color: #a6c1ac; }
.button-outline:hover { background: #e8f0e3; }
.plan-pro { background: #e4eddf; border-color: #a2baa3; position: relative; }
.plan-pro::before { content: ""; position: absolute; width: 42px; height: 3px; background: var(--green); top: -1px; left: 27px; }
.faq-section { display: grid; grid-template-columns: .78fr 1.22fr; gap: 75px; }
.faq-list { border-top: 1px solid #cdd7c8; }
details { border-bottom: 1px solid #dce2d7; }
summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 21px 0; font-size: 14px; font-weight: 500; }
summary::-webkit-details-marker { display: none; }
summary > span { color: #69825c; font-size: 21px; font-weight: 300; }
details[open] summary > span { transform: rotate(45deg); }
details > p { color: var(--muted); font-size: 13px; line-height: 1.95; padding: 0 29px 24px 0; }
.start-section { background: #173f35; color: #fff; padding-block: 76px; scroll-margin-top: 60px; position: relative; overflow: hidden; }
.start-section::after { content: ""; position: absolute; width: 540px; height: 540px; border: 1px solid #49705b; border-radius: 50%; right: -220px; top: -140px; pointer-events: none; }
.start-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 110px; align-items: center; position: relative; z-index: 1; }
.start-copy .eyebrow { color: #c0d4b3; }
.start-copy h2 { font-size: 35px; margin-top: 20px; line-height: 1.65; }
.start-copy h2 > span { color: #d9e4b7; }
.start-copy > p { color: #cbdbcc; font-size: 13px; margin-top: 22px; line-height: 1.9; }
.contact-link { display: inline-flex; gap: 20px; min-height: 44px; align-items: center; color: #d1dfcf; font-size: 11px; margin-top: 22px; border-bottom: 1px solid #78977c; }
.wechat-guide { background: #f7f8ef; border-radius: 9px; color: var(--ink); padding: 27px 28px 20px; transform: rotate(1deg); }
.guide-top { display: flex; gap: 12px; align-items: center; }
.guide-top > span { font-size: 16px; font-weight: 600; }
.guide-top small { display: block; color: var(--muted); font-size: 10px; font-weight: 400; margin-top: 2px; }
.search-preview { display: flex; align-items: center; padding: 6px 7px 6px 14px; gap: 10px; background: #fff; border: 1px solid #bbcdb6; border-radius: 5px; margin-top: 25px; }
.search-preview > span { color: #708465; font-size: 25px; line-height: 1; }
.search-preview > strong { font-size: 15px; font-weight: 600; user-select: all; }
.search-preview button { margin-left: auto; border: 0; background: #e5eee0; color: var(--deep); font-size: 11px; min-height: 44px; padding: 8px 13px; border-radius: 3px; }
.search-preview button:hover { background: #d6e6cd; }
.wechat-guide ol { list-style: none; padding: 0; margin: 22px 0; }
.wechat-guide li { font-size: 12px; display: flex; align-items: center; gap: 10px; margin: 12px 0; color: #4f6249; }
.wechat-guide li > span { width: 19px; height: 19px; border: 1px solid #c4d1ba; color: #536d47; display: grid; place-items: center; border-radius: 50%; font-size: 10px; }
.copy-feedback { color: #5e7256; font-size: 10px; border-top: 1px solid #dce4d3; padding-top: 14px; min-height: 50px; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 31px; }
.footer-brand { font-size: 20px; gap: 8px; }
.site-footer > p { margin-right: auto; margin-left: 12px; font-family: "Songti SC", "SimSun", serif; font-size: 12px; color: var(--muted); }
.site-footer > div { display: flex; gap: 23px; align-items: center; font-size: 10px; color: #667360; }
.site-footer > div a { padding-block: 13px; }
.noscript-note { background: var(--mint); padding: 16px 24px; text-align: center; font-size: 13px; }
@media (prefers-reduced-motion: no-preference) {
  .hero-copy, .demo-scene { animation: arrive 260ms var(--ease) both; }
  .demo-scene { animation-delay: 100ms; }
  @keyframes arrive { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
}
@media (max-width: 1150px) {
  .container { width: calc(100% - 64px); }
  .hero { gap: 12px; }
  h1 { font-size: 3.8vw; letter-spacing: -2px; }
  .hero-description { font-size: 15px; }
  .hero-actions { gap: 16px; }
  .hero-actions .button { padding-inline: 17px; font-size: 13px; gap: 12px; }
  .demo-scene { padding-inline: 25px 12px; }
  .demo-paper { padding-inline: 18px; }
  .confirmation-note { margin-left: 17px; padding-inline: 13px; }
  .desktop-nav { gap: 22px; }
  .plans-layout { gap: 18px; }.plan { padding: 22px; }
  .start-layout { gap: 65px; }
}
@media (max-width: 900px) {
  .desktop-nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-block: 48px 45px; gap: 47px; }
  .hero-copy { max-width: 600px; padding-top: 0; }
  h1 { font-size: clamp(33px, 5.5vw, 50px); }
  .hero-description { font-size: 17px; }
  .margin-note { margin-top: 29px; }
  .demo-scene { width: min(550px, 100%); justify-self: center; padding: 35px 28px 96px 35px; }
  .demo-paper { padding-inline: 24px; }
  .principles { gap: 16px; }.principles p { font-size: 11px; }.principles p > span { margin-right: 7px; }
  .section { padding-block: 66px; }
  h2 { font-size: 29px; }
  .section-heading { align-items: start; }.section-heading > p { max-width: 185px; }
  .workflow-grid { gap: 23px; }.workflow-step h3 { font-size: 17px; }
  .input-chips { flex-wrap: wrap; }.confirm-preview { flex-wrap: wrap; }.confirm-preview > strong { margin-left: 0; }.report-tabs > span { padding-inline: 13px; }
  .feature { padding-inline: 25px; }.feature h3 { font-size: 20px; }.class-note { margin-inline: 2px; padding-inline: 20px; }.class-note > strong { font-size: 19px; }
  .feature-report { gap: 20px; }.report-copy h3 { font-size: 24px; }
  .trust-section { gap: 36px; }
  .plans-layout { grid-template-columns: 1fr 1fr; }.plans-intro { grid-column: 1 / -1; padding-bottom: 14px; }.plans-intro > p:not(.eyebrow) { margin-top: 15px; }.plans-intro .plan-note { margin-top: 15px !important; }
  .faq-section { gap: 32px; }
  .start-layout { gap: 35px; }.start-copy h2 { font-size: 27px; }.wechat-guide { padding-inline: 20px; }
  .site-footer { flex-wrap: wrap; }.site-footer > div { width: 100%; justify-content: flex-start; }.site-footer > p { margin-right: 0; }
}
@media (max-width: 600px) {
  html { scroll-padding-top: 80px; }
  .container { width: calc(100% - 40px); }
  .header-inner { height: 70px; gap: 12px; }.brand { font-size: 22px; }.brand img { width: 31px; height: 31px; }
  .button-small { font-size: 12px; min-height: 44px; padding: 8px 13px; gap: 15px; }
  .hero { padding-top: 34px; gap: 38px; }
  .hero .eyebrow { font-size: 11px; margin-bottom: 23px; letter-spacing: 1.3px; }
  h1 { font-size: clamp(29px, 7.65vw, 44px); letter-spacing: -1.65px; line-height: 1.55; }
  .hero-description { font-size: 13px; margin-top: 20px; line-height: 1.9; }
  .hero-principle { font-size: 11px; margin-top: 13px; }
  .hero-actions { margin-top: 23px; gap: 19px; }.hero-actions .button { min-height: 50px; padding: 10px 15px; font-size: 12px; }
  .text-link { font-size: 12px; gap: 7px; }
  .hero-notes { font-size: 10px; gap: 12px; }.hero-notes span + span { padding-left: 12px; }
  .margin-note { font-size: 13px; margin-top: 28px; }
  .demo-scene { padding: 32px 8px 90px 10px; }
  .demo-paper { padding: 16px 15px 14px; transform: rotate(-1deg); }
  .scene-label { font-size: 12px; right: 10px; }
  .scenario-switch { gap: 1px; }.scenario-switch button { font-size: 11px; }
  .speech-card { min-height: 108px; padding-inline: 12px; }.speech-card > p { font-size: 13px; }
  .record-person { gap: 8px; padding-inline: 12px; }.record-person strong { font-size: 12px; }
  .record-person .record-score { font-size: 23px; }.record-score small { font-size: 9px; }
  .record-person .record-score.is-neutral { font-size: 13px; }.record-person > div > span { font-size: 9px; }
  .record-description { padding-inline: 12px; gap: 6px; }
  .confirmation-note { left: 0; right: 0; margin-left: 4px; padding: 12px; gap: 8px; transform: rotate(1deg); }
  .confirmation-note strong { font-size: 11px; }.confirmation-note div > span { font-size: 9px; }
  .principles { flex-direction: column; gap: 10px; padding-block: 22px; }.principles p { font-size: 12px; }.principles p > span { margin-right: 14px; }
  .section { padding-block: 55px; }.section .eyebrow { font-size: 9px; letter-spacing: 1.25px; }
  h2, .plans-intro h2 { font-size: 26px; letter-spacing: -1px; }
  .section-heading { display: block; margin-bottom: 30px; }.section-heading > p { max-width: none; margin-top: 14px; font-size: 12px; }
  .workflow-grid { grid-template-columns: 1fr; gap: 27px; }.workflow-step { padding-top: 17px; }.step-number { font-size: 33px; }.workflow-step h3 { font-size: 19px; margin-top: 9px; }.workflow-step > p { font-size: 13px; }.input-chips, .confirm-preview, .report-tabs { margin-top: 15px; }
  .confirm-preview > strong { margin-left: 20px; }.report-tabs > span { padding-inline: 26px; }
  .feature-grid { grid-template-columns: 1fr; gap: 18px; }.feature { padding: 23px; }.feature h3 { font-size: 20px; }.feature > p { font-size: 12px; }
  .class-note { margin-inline: 12px; }.feature-report { grid-column: auto; grid-template-columns: 1fr; gap: 0; padding-bottom: 0; }.report-copy { padding-bottom: 10px; }.report-copy h3 { font-size: 24px; }.report-copy h3 br { display: none; }.report-sheet { margin-top: 3px; }.report-sheet-top { padding: 16px; gap: 10px; }.report-sheet-top strong { font-size: 12px; }.report-body { padding: 19px; }
  .trust-section, .faq-section { grid-template-columns: 1fr; gap: 30px; }.trust-points { gap: 22px; }
  .plans-layout { grid-template-columns: 1fr; gap: 18px; }.plans-intro { grid-column: auto; }.plans-intro .plan-note br { display: none; }.plan { padding: 26px; }.plan > p { font-size: 12px; }.plan li { font-size: 13px; }.plan .button { font-size: 13px; }
  summary { font-size: 13px; padding-block: 19px; }.faq-list p { font-size: 12px; }
  .start-section { padding-block: 48px; }.start-layout { grid-template-columns: 1fr; gap: 33px; }.start-copy h2 { font-size: 27px; }.start-copy .eyebrow { font-size: 10px; }.start-copy > p { font-size: 12px; }.contact-link { margin-top: 14px; }.wechat-guide { padding: 24px; transform: none; }
  .site-footer { padding-block: 27px; gap: 16px; }.footer-brand { font-size: 18px; }.footer-brand img { width: 26px; height: 26px; }.site-footer > p { font-size: 10px; margin-left: auto; }.site-footer > div { gap: 21px; font-size: 9px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}