:root {
  --ink: #18211c;
  --muted: #5d675f;
  --green: #167454;
  --green-deep: #0d5039;
  --mint: #e8f5ed;
  --blue: #176f8c;
  --orange: #f36f21;
  --orange-dark: #d95312;
  --yellow: #f5c84c;
  --red: #d53c32;
  --cream: #fffaf0;
  --surface: #f5f7f5;
  --line: #dce3dd;
  --white: #fff;
  --shadow: 0 18px 45px rgba(24, 33, 28, .14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; font-size: 17px; line-height: 1.75; letter-spacing: 0; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.section-inner { width: min(1100px, calc(100% - 40px)); margin: 0 auto; }
.section-inner.narrow { width: min(820px, calc(100% - 40px)); }

.announcement { min-height: 38px; display: grid; place-items: center; padding: 6px 20px; background: var(--green-deep); color: white; text-align: center; font-size: 14px; font-weight: 800; }
.topbar { height: 68px; display: flex; align-items: center; justify-content: space-between; padding: 0 max(20px, calc((100vw - 1100px) / 2)); background: rgba(255,255,255,.98); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 30; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 6px; background: var(--green); color: white; font-family: SimSun, serif; font-size: 22px; font-weight: 800; }
.brand strong, .brand small { display: block; line-height: 1.2; }
.brand strong { font-size: 20px; }
.brand small { margin-top: 3px; color: var(--muted); font-size: 11px; }
.top-cta { min-height: 44px; display: inline-flex; align-items: center; padding: 0 24px; border-radius: 5px; background: var(--orange); color: white; font-size: 15px; font-weight: 900; }
.top-cta:hover { background: var(--orange-dark); }

.hero { background: var(--mint); border-bottom: 8px solid var(--yellow); overflow: hidden; }
.hero-inner { width: min(1100px, calc(100% - 40px)); min-height: 650px; margin: 0 auto; display: grid; grid-template-columns: 1.05fr .75fr; align-items: center; gap: 54px; padding: 60px 0; }
.audience-tag { width: fit-content; margin: 0 0 18px; padding: 6px 12px; border-left: 5px solid var(--orange); background: white; color: var(--green-deep); font-size: 15px; font-weight: 900; }
.hero h1 { margin: 0; font-size: clamp(46px, 5.2vw, 70px); line-height: 1.16; font-weight: 900; }
.hero h1 em { color: var(--red); font-style: normal; }
.lead { max-width: 670px; margin: 24px 0 20px; color: #3f4b43; font-size: 20px; line-height: 1.85; }
.hero-points { display: flex; flex-wrap: wrap; gap: 9px; margin: 0 0 22px; }
.hero-points span { padding: 5px 11px; border: 1px solid #a9cbb8; border-radius: 4px; background: rgba(255,255,255,.72); color: var(--green-deep); font-size: 14px; font-weight: 800; }
.hero-price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px 15px; margin-bottom: 22px; }
.price-label { color: var(--ink); font-weight: 800; }
.hero-price strong { color: var(--red); font-size: 48px; line-height: 1; }
.hero-price strong small { margin-right: 4px; font-size: 18px; }
.hero-price del { color: var(--muted); font-size: 14px; }
.primary-button { min-height: 58px; width: fit-content; display: inline-flex; align-items: center; justify-content: center; padding: 0 30px; border-radius: 6px; background: var(--orange); color: white; box-shadow: 0 11px 24px rgba(243,111,33,.28); font-size: 19px; font-weight: 900; }
.primary-button:hover { background: var(--orange-dark); transform: translateY(-1px); }
.microcopy { margin: 11px 0 0; color: var(--muted); font-size: 13px; }
.hero-product { min-height: 520px; position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 35px; background: white; box-shadow: var(--shadow); }
.hero-product::after { content: "实物拍摄"; position: absolute; right: 14px; bottom: 14px; padding: 4px 8px; background: var(--ink); color: white; font-size: 11px; font-weight: 700; }
.hero-product img { width: 100%; height: 430px; object-fit: contain; }
.hero-product p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.product-ribbon { position: absolute; left: -10px; top: 18px; z-index: 2; padding: 8px 18px; background: var(--yellow); color: #493400; font-weight: 900; }

.pain-section { padding: 84px 0; background: var(--cream); }
.section-kicker { margin: 0 0 8px; color: var(--orange-dark); font-size: 15px; font-weight: 900; }
.pain-section h2, .section-heading h2, .compare-copy h2, .offer-copy h2, .faq-section h2, .notice-section h2 { margin: 0; font-size: 42px; line-height: 1.3; }
.pain-list { margin: 34px 0; border-top: 1px solid #e8dcbf; }
.pain-list p { margin: 0; padding: 21px 0; display: grid; grid-template-columns: 56px 1fr; gap: 0 14px; border-bottom: 1px solid #e8dcbf; }
.pain-list p > span { grid-row: 1 / 3; width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; background: var(--red); color: white; font-size: 13px; font-weight: 900; }
.pain-list strong { font-size: 20px; }
.pain-list small { color: var(--muted); font-size: 15px; }
.pain-callout { margin: 0; padding: 19px 22px; border-left: 6px solid var(--green); background: white; color: var(--green-deep); font-size: 19px; font-weight: 800; }

.compare-section { padding: 88px 0; background: white; }
.compare-grid { display: grid; grid-template-columns: .78fr 1.1fr; gap: 68px; align-items: center; }
.compare-copy > p:not(.section-kicker) { color: var(--muted); margin: 20px 0; }
.check-list { list-style: none; padding: 0; margin: 24px 0 0; }
.check-list li { position: relative; padding: 9px 0 9px 34px; border-bottom: 1px solid var(--line); font-weight: 800; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 9px; color: var(--green); font-size: 20px; font-weight: 900; }
.compare-visual { margin: 0; }
.compare-visual img { width: 100%; border: 1px solid var(--line); background: #f8fbf9; }
.compare-visual figcaption { margin-top: 10px; color: var(--muted); font-size: 12px; text-align: center; }

.product-section { padding: 90px 0; background: var(--surface); }
.section-heading { max-width: 780px; margin-bottom: 38px; }
.section-heading.centered { margin-left: auto; margin-right: auto; text-align: center; }
.section-heading > p:last-child { color: var(--muted); margin: 14px 0 0; }
.product-showcase { display: grid; grid-template-columns: .8fr 1fr .65fr; gap: 28px; align-items: stretch; }
.product-photo, .label-photo { min-height: 540px; display: flex; flex-direction: column; justify-content: center; padding: 24px; background: white; border: 1px solid var(--line); }
.product-photo img, .label-photo img { width: 100%; height: 465px; object-fit: contain; }
.label-photo p { margin: 10px 0 0; color: var(--muted); font-size: 13px; text-align: center; }
.product-details { display: flex; flex-direction: column; justify-content: center; padding: 42px 36px; background: var(--green-deep); color: white; }
.detail-badge { width: fit-content; padding: 5px 10px; background: var(--yellow); color: #423100; font-size: 13px; font-weight: 900; }
.product-details h3 { margin: 18px 0 13px; font-size: 36px; line-height: 1.25; }
.product-details > p { margin: 0; color: rgba(255,255,255,.75); font-size: 15px; }
.spec-list { margin: 26px 0 22px; border-top: 1px solid rgba(255,255,255,.22); }
.spec-list div { display: grid; grid-template-columns: 105px 1fr; gap: 12px; padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,.22); }
.spec-list dt { color: rgba(255,255,255,.62); }
.spec-list dd { margin: 0; font-weight: 900; }
.text-cta { color: var(--yellow); font-weight: 900; text-decoration: underline; text-underline-offset: 5px; }

.routine-section { padding: 82px 0; background: var(--blue); color: white; }
.section-heading.light .section-kicker { color: var(--yellow); }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid rgba(255,255,255,.3); }
.steps li { min-height: 205px; padding: 28px; border-right: 1px solid rgba(255,255,255,.3); }
.steps li:last-child { border-right: 0; }
.steps span { width: 43px; height: 43px; display: grid; place-items: center; margin-bottom: 20px; border-radius: 50%; background: var(--yellow); color: #3f3000; font-weight: 900; }
.steps strong { display: block; font-size: 21px; }
.steps p { margin: 8px 0 0; color: rgba(255,255,255,.72); font-size: 15px; }

.reviews-section { padding: 90px 0; background: white; }
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.reviews article { padding: 26px; border: 1px solid var(--line); border-top: 5px solid var(--green); border-radius: 6px; background: white; box-shadow: 0 9px 24px rgba(24,33,28,.07); }
.review-head { display: grid; grid-template-columns: 1fr auto; margin-bottom: 15px; }
.review-head span { font-weight: 900; }
.review-head small { color: var(--muted); font-size: 12px; }
.review-head b { grid-column: 1 / -1; color: #eca900; font-size: 15px; }
.reviews article > p { margin: 0; color: #3e4841; font-size: 16px; }
.review-note { margin: 20px 0 0; color: var(--muted); font-size: 12px; text-align: center; }

.offer-section { padding: 92px 0; background: #eef6f1; border-top: 8px solid var(--yellow); }
.offer-grid { display: grid; grid-template-columns: 1fr .78fr; gap: 60px; align-items: start; }
.offer-label { display: inline-block; padding: 6px 11px; background: var(--red); color: white; font-size: 14px; font-weight: 900; }
.offer-copy h2 { margin-top: 16px; }
.offer-product { display: grid; grid-template-columns: 116px 1fr; gap: 18px; align-items: center; margin: 28px 0 18px; padding: 14px; background: white; border: 1px solid var(--line); }
.offer-product img { width: 116px; height: 116px; object-fit: contain; }
.offer-product strong, .offer-product span, .offer-product small { display: block; }
.offer-product strong { font-size: 18px; }
.offer-product span { color: var(--green); font-weight: 900; }
.offer-product small { color: var(--muted); }
.offer-price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 9px 14px; }
.offer-price del { color: var(--muted); }
.offer-price strong { color: var(--red); font-size: 46px; line-height: 1; }
.offer-price strong small { font-size: 17px; }
.offer-price span { padding: 3px 9px; background: var(--yellow); font-size: 13px; font-weight: 900; }
.offer-assurance { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 20px 0 0; }
.offer-assurance li { padding: 5px 10px; border: 1px solid #a8c9b5; color: var(--green-deep); font-size: 13px; font-weight: 800; }
.order-form { padding: 30px; border: 1px solid #cfd9d1; border-top: 7px solid var(--orange); border-radius: 6px; background: white; box-shadow: var(--shadow); }
.form-title { margin-bottom: 23px; }
.form-title span, .form-title small { display: block; }
.form-title span { font-size: 25px; font-weight: 900; }
.form-title small { color: var(--muted); font-size: 13px; }
.order-form > label:not(.consent) { display: block; margin-bottom: 13px; }
.order-form label > span:first-child { display: block; margin-bottom: 6px; font-size: 17px; font-weight: 900; }
.order-form input[type="text"], .order-form input[type="tel"] { width: 100%; height: 60px; border: 2px solid #b9c4bb; border-radius: 5px; padding: 0 15px; outline: none; background: white; font-size: 18px; }
.order-form input:focus { border-color: var(--green); box-shadow: 0 0 0 4px rgba(22,116,84,.12); }
.field-error { min-height: 20px; display: block; margin-top: 2px; color: var(--red); font-size: 13px; }
.fixed-choice { display: grid; grid-template-columns: 1fr auto; gap: 3px 12px; margin: 7px 0 17px; padding: 14px 16px; background: var(--surface); border: 1px solid var(--line); }
.fixed-choice > span { font-weight: 800; }
.fixed-choice strong { color: var(--green); font-size: 18px; }
.fixed-choice small { grid-column: 1 / -1; color: var(--muted); font-size: 12px; }
.consent { display: grid !important; grid-template-columns: 25px 1fr; gap: 10px; align-items: start; }
.consent input { width: 23px; height: 23px; margin: 2px 0 0; accent-color: var(--green); }
.consent span { margin: 0 !important; color: var(--muted); font-size: 13px !important; font-weight: 400 !important; line-height: 1.65; }
.consent-error { margin-left: 35px; }
.submit-button { width: 100%; height: 62px; border: 0; border-radius: 5px; background: var(--orange); color: white; box-shadow: 0 8px 18px rgba(243,111,33,.24); cursor: pointer; font-size: 20px; font-weight: 900; }
.submit-button:hover { background: var(--orange-dark); }
.submit-button:disabled { opacity: .7; cursor: wait; }
.spinner { display: none; width: 22px; height: 22px; border: 2px solid rgba(255,255,255,.45); border-top-color: white; border-radius: 50%; animation: spin .8s linear infinite; }
.submit-button.loading .spinner { display: inline-block; }
.submit-button.loading .button-label { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }
.form-status { min-height: 23px; margin: 10px 0 0; color: var(--red); font-size: 13px; text-align: center; }
.secure-note { margin: 2px 0 0; color: var(--muted); font-size: 12px; text-align: center; }

.faq-section { padding: 86px 0; background: white; }
.faq-section h2 { margin-bottom: 28px; }
.faq-section details { border-top: 1px solid var(--line); }
.faq-section details:last-child { border-bottom: 1px solid var(--line); }
.faq-section summary { padding: 20px 42px 20px 0; cursor: pointer; position: relative; list-style: none; font-size: 19px; font-weight: 900; }
.faq-section summary::-webkit-details-marker { display: none; }
.faq-section summary::after { content: "+"; position: absolute; right: 4px; top: 18px; color: var(--green); font-size: 26px; }
.faq-section details[open] summary::after { content: "−"; }
.faq-section details p { margin: -5px 0 20px; color: var(--muted); }

.notice-section { padding: 70px 0; background: #17221c; color: white; }
.notice-section h2 { font-size: 32px; }
.notice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 46px; margin-top: 20px; border-top: 1px solid rgba(255,255,255,.18); }
.notice-grid p { margin: 0; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.18); color: rgba(255,255,255,.65); font-size: 14px; }
.notice-grid strong { display: block; color: white; }
footer { padding: 36px 0 95px; background: #0e1612; color: rgba(255,255,255,.55); font-size: 12px; }
footer strong { color: white; font-size: 17px; }
footer p { margin: 6px 0; }
footer a { text-decoration: underline; }
.mobile-order { display: none; }

@media (max-width: 900px) {
  body { font-size: 16px; }
  .topbar { height: 62px; padding: 0 18px; }
  .top-cta { min-height: 40px; padding: 0 16px; }
  .hero-inner { min-height: 0; grid-template-columns: 1fr; gap: 28px; padding: 36px 0 44px; }
  .hero-copy { order: 1; }
  .hero-product { order: 0; min-height: 390px; padding: 24px; }
  .hero-product img { height: 330px; }
  .hero h1 { font-size: 46px; }
  .lead { font-size: 18px; }
  .compare-grid, .offer-grid { grid-template-columns: 1fr; gap: 36px; }
  .product-showcase { grid-template-columns: 1fr 1fr; }
  .product-details { grid-column: 1 / -1; grid-row: 1; }
  .product-photo, .label-photo { min-height: 470px; }
  .product-photo img, .label-photo img { height: 400px; }
  .reviews { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .section-inner, .section-inner.narrow, .hero-inner { width: min(100% - 28px, 1100px); }
  .announcement { font-size: 12px; }
  .brand small { display: none; }
  .hero-inner { width: 100%; padding-top: 0; }
  .hero-product { min-height: 330px; box-shadow: none; }
  .hero-product img { height: 285px; }
  .hero-copy { padding: 0 18px; }
  .audience-tag { font-size: 13px; }
  .hero h1 { font-size: 38px; }
  .lead { font-size: 17px; line-height: 1.75; }
  .hero-price strong { font-size: 42px; }
  .primary-button { width: 100%; min-height: 62px; padding: 0 15px; font-size: 17px; }
  .pain-section, .compare-section, .product-section, .routine-section, .reviews-section, .offer-section, .faq-section { padding: 62px 0; }
  .pain-section h2, .section-heading h2, .compare-copy h2, .offer-copy h2, .faq-section h2 { font-size: 32px; }
  .pain-list p { grid-template-columns: 50px 1fr; }
  .pain-list p > span { width: 42px; height: 42px; }
  .compare-grid { gap: 26px; }
  .compare-visual { margin-left: -14px; margin-right: -14px; }
  .product-showcase { grid-template-columns: 1fr; gap: 14px; }
  .product-details { grid-column: auto; grid-row: auto; padding: 30px 22px; }
  .product-details h3 { font-size: 31px; }
  .product-photo, .label-photo { min-height: 390px; }
  .product-photo img, .label-photo img { height: 330px; }
  .steps { grid-template-columns: 1fr; }
  .steps li { min-height: 0; display: grid; grid-template-columns: 50px 1fr; gap: 0 10px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.3); }
  .steps li:last-child { border-bottom: 0; }
  .steps span { grid-row: 1 / 3; }
  .steps p { grid-column: 2; }
  .reviews article { padding: 22px; }
  .offer-product { grid-template-columns: 90px 1fr; }
  .offer-product img { width: 90px; height: 90px; }
  .order-form { padding: 24px 17px; margin-left: -2px; margin-right: -2px; }
  .notice-section { padding: 54px 0; }
  .notice-grid { grid-template-columns: 1fr; }
  footer { padding-bottom: 100px; }
  .mobile-order { height: 70px; display: flex; align-items: center; justify-content: space-between; position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; padding: 8px 9px 8px 17px; background: white; box-shadow: 0 -8px 28px rgba(0,0,0,.15); }
  .mobile-order span { color: var(--red); font-size: 18px; font-weight: 900; line-height: 1.2; }
  .mobile-order small { display: block; color: var(--muted); font-size: 10px; font-weight: 400; }
  .mobile-order strong { min-width: 142px; padding: 12px 17px; border-radius: 5px; background: var(--orange); color: white; text-align: center; }
}

@media (max-width: 390px) {
  .hero h1 { font-size: 34px; }
  .hero-product { min-height: 300px; }
  .hero-product img { height: 255px; }
  .form-title span { font-size: 22px; }
  .mobile-order strong { min-width: 126px; }
}