:root {
    --bg: #F0EADA;            /* 月光棉 */
    --text: #1f1f1f;          /* 墨石黑 */
    --muted: rgba(31, 31, 31, 0.62);
    --terra: #9A6543;         /* 陶土棕 */
    --forest: #4E6B4A;        /* 森野绿 */
    --forest-deep: #2F4A3A;
    --cta: #E8873A;           /* 晨光橙：全站唯一行动号召色 */
    --cta-hover: #D97826;
    --card: rgba(255, 255, 255, 0.72);
    --border: rgba(15, 15, 15, 0.08);
    --shadow: 0 14px 40px rgba(0, 0, 0, 0.08);
    --radius: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(240, 234, 218, 0.94);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}
.site-header__inner { display: flex; align-items: center; gap: 18px; padding: 10px 24px; }
.brand__logo { width: 52px; height: 52px; object-fit: contain; }
.nav { display: flex; align-items: center; gap: 6px; margin-left: auto; flex-wrap: wrap; justify-content: flex-end; }
.nav__link { font-size: 15px; font-weight: 600; padding: 8px 12px; border-radius: 10px; }
.nav__link:hover { background: rgba(255, 255, 255, 0.6); }
.nav__cta {
    margin-left: 6px; padding: 8px 18px; border-radius: 999px;
    background: var(--cta); color: #fff; font-weight: 700; font-size: 15px;
}
.nav__cta:hover { background: var(--cta-hover); }
.lang {
    display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px;
    border-radius: 999px; background: rgba(255, 255, 255, 0.55); border: 1px solid var(--border);
}
.lang__btn { border: none; background: transparent; cursor: pointer; font-weight: 700; padding: 3px 6px; border-radius: 8px; color: var(--muted); font-size: 14px; }
.lang__btn[aria-pressed="true"] { color: var(--text); background: rgba(255, 255, 255, 0.85); }
.lang__sep { color: rgba(0, 0, 0, 0.25); }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    min-height: 52px; padding: 0 34px; border-radius: 999px; border: none; cursor: pointer;
    font-size: 18px; font-weight: 700; font-family: inherit;
}
.btn--cta { background: var(--cta); color: #fff; box-shadow: 0 10px 28px rgba(232, 135, 58, 0.35); transition: transform .2s, background .2s; }
.btn--cta:hover { background: var(--cta-hover); transform: translateY(-1px); }

/* Hero：暖色自然光渐变兜底，待真实家庭视频替换 */
.hero { position: relative; min-height: 88vh; display: flex; align-items: flex-end; overflow: hidden; }
.hero__media {
    position: absolute; inset: 0;
    background:
        radial-gradient(120% 90% at 78% 12%, rgba(255, 226, 170, 0.85) 0%, rgba(255, 226, 170, 0) 55%),
        radial-gradient(90% 80% at 10% 100%, rgba(78, 107, 74, 0.55) 0%, rgba(78, 107, 74, 0) 60%),
        linear-gradient(160deg, #EFD9B4 0%, #C99A72 55%, #7E5A40 100%);
}
.hero__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero__content { position: relative; padding-top: 140px; padding-bottom: 88px; color: #fff; }
.hero__eyebrow { font-size: 15px; letter-spacing: .12em; opacity: .92; margin-bottom: 14px; text-shadow: 0 4px 20px rgba(0,0,0,.3); }
.hero__title { font-size: clamp(40px, 6vw, 76px); line-height: 1.12; font-weight: 800; text-shadow: 0 12px 40px rgba(0, 0, 0, .35); }
.hero__subtitle { margin: 18px 0 32px; font-size: clamp(16px, 1.6vw, 20px); text-shadow: 0 4px 20px rgba(0,0,0,.3); }

/* Sections */
.section { padding: 84px 0; }
.section--tight { padding: 12px 0 84px; }
.section--alt { background: rgba(255, 255, 255, 0.4); }
.kicker { font-size: 14px; font-weight: 700; letter-spacing: .08em; color: var(--terra); margin-bottom: 10px; }
.kicker--light { color: #E7D9B8; }
.section__title { font-size: clamp(26px, 3vw, 38px); line-height: 1.25; font-weight: 800; margin-bottom: 16px; }
.section__lead { color: var(--muted); font-size: 17px; max-width: 46em; margin-bottom: 32px; }
.sub-title { font-size: 22px; font-weight: 800; margin: 56px 0 18px; }

/* Scenes */
.scene-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.scene-card {
    background: var(--card); border: 1px solid var(--border); border-radius: 22px; box-shadow: var(--shadow);
    padding: 28px 22px 26px; display: flex; flex-direction: column; min-height: 280px;
    transition: transform .25s;
}
.scene-card:hover { transform: translateY(-4px); }
.scene-card__no { font-size: 14px; font-weight: 700; color: var(--terra); letter-spacing: .1em; }
.scene-card__title { font-size: 28px; font-weight: 800; margin: 14px 0 12px; }
.scene-card__line { font-size: 17px; font-weight: 600; }
.scene-card__note { margin-top: auto; padding-top: 18px; color: var(--muted); font-size: 14px; border-top: 1px dashed var(--border); }

/* Trust */
.trust-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 2px solid var(--forest); margin-top: 24px; }
.trust-item { padding: 22px 22px 0 0; color: var(--muted); font-size: 15px; }
.trust-item__t { font-size: 18px; font-weight: 800; color: var(--forest); margin-bottom: 6px; }

/* Abilities */
.ability-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.ability { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 26px; color: var(--muted); }
.ability h3 { font-size: 20px; color: var(--text); }
.ability__line { font-size: 18px; font-weight: 700; color: var(--terra); margin: 4px 0 8px; }
.boundary {
    margin-top: 26px; padding: 16px 20px; border-left: 4px solid var(--forest);
    background: rgba(78, 107, 74, 0.08); border-radius: 0 12px 12px 0; font-size: 15px;
}
.who-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.who { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; color: var(--muted); font-size: 15px; }
.who__icon { width: 44px; height: 44px; object-fit: contain; margin-bottom: 12px; }
.who h4 { font-size: 18px; color: var(--text); }
.who__line { font-weight: 700; color: var(--terra); margin: 4px 0 8px; }
.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 28px; }
.check-list li { padding-left: 26px; position: relative; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--forest); font-weight: 800; }

/* Vision */
.section--vision { background: var(--forest-deep); color: #F4EEDD; }
.timeline { margin-top: 28px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 0; right: 0; top: 7px; border-top: 2px dashed rgba(244, 238, 221, .4); }
.timeline li { position: relative; padding: 30px 22px 0 0; }
.timeline li::before { content: ""; position: absolute; top: 0; left: 0; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); }
.timeline__time { font-weight: 800; font-size: 20px; margin-bottom: 6px; }
.timeline__text { font-size: 15px; opacity: .9; }
.vision__note { margin-top: 32px; font-size: 13px; opacity: .7; }

/* About */
.why-how { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 30px; }
.why-how__item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 28px; }
.why-how__item h3 { font-size: 14px; letter-spacing: .2em; color: var(--terra); margin-bottom: 8px; }
.why-how__item p { font-size: 17px; }
.belief-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.belief { padding: 22px 24px; border-top: 3px solid var(--terra); background: rgba(255,255,255,.45); border-radius: 0 0 var(--radius) var(--radius); color: var(--muted); font-size: 15px; }
.belief h4 { font-size: 20px; color: var(--text); margin-bottom: 6px; }
.loop { margin-top: 40px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-weight: 700; }
.loop span { padding: 8px 18px; border-radius: 999px; background: var(--forest); color: #fff; }
.loop i { font-style: normal; color: var(--terra); }
.loop__note { margin-top: 12px; color: var(--muted); font-size: 15px; }
.tech-choice { display: flex; gap: 26px; align-items: flex-start; margin-top: 56px; }
.tech-choice__icon { width: 84px; height: 84px; object-fit: contain; flex: none; opacity: .85; }
.tech-choice h3 { font-size: 20px; margin-bottom: 12px; }
.plain-list li { position: relative; padding-left: 18px; color: var(--muted); font-size: 15px; }
.plain-list li + li { margin-top: 6px; }
.plain-list li::before { content: ""; position: absolute; left: 0; top: 11px; width: 6px; height: 6px; border-radius: 50%; background: var(--terra); }
.closing { margin-top: 64px; font-size: clamp(20px, 2.2vw, 28px); font-weight: 700; line-height: 1.6; padding-left: 22px; border-left: 4px solid var(--terra); max-width: 30em; }

/* Parts */
.parts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.part { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; color: var(--muted); font-size: 15px; }
.part h4 { font-size: 18px; color: var(--text); margin-bottom: 8px; }
.parts-note { margin-top: 20px; font-size: 13px; color: var(--muted); }

/* Booking */
.home-bottom { position: relative; }
.home-bottom__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.home-bottom__overlay { position: relative; padding: 96px 24px; text-align: center; display: flex; flex-direction: column; align-items: center; }
.home-bottom__title { font-size: clamp(30px, 4vw, 48px); font-weight: 800; color: #4A4640; }
.home-bottom__sub { margin: 10px 0 30px; color: #5d5850; font-size: 17px; }
.book-form { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; width: min(920px, 100%); }
.book-form input, .book-form select {
    flex: 1 1 200px; height: 52px; padding: 0 18px; border-radius: 999px;
    border: 1px solid rgba(0, 0, 0, .15); background: rgba(255, 255, 255, .9); font-size: 16px; font-family: inherit; color: var(--text);
}
.book-form__msg { margin-top: 16px; min-height: 24px; font-size: 15px; color: var(--forest-deep); font-weight: 600; }

/* Contact & footer */
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.contact-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; }
.contact-item__k { font-size: 12px; color: rgba(0, 0, 0, .5); font-weight: 800; letter-spacing: .08em; }
.contact-item__v { margin-top: 6px; display: block; }
a.contact-item__v { text-decoration: underline; text-underline-offset: 3px; }
.site-footer { padding: 28px 0 34px; border-top: 1px solid var(--border); background: rgba(240, 234, 218, .66); }
.site-footer__inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; }
.footer-left { display: flex; align-items: flex-end; gap: 14px; }
.footer-logo { width: 52px; height: 52px; object-fit: contain; }
.footer-meta { display: grid; gap: 4px; color: var(--muted); font-size: 14px; }
.footer-company { color: var(--text); font-weight: 800; font-size: 16px; }
.footer-right { text-align: right; color: var(--muted); font-size: 14px; display: grid; gap: 4px; }

/* Responsive */
@media (max-width: 980px) {
    .site-header__inner { flex-wrap: wrap; }
    .nav { order: 3; width: 100%; justify-content: flex-start; margin-left: 0; }
    .lang { margin-left: auto; }
    .scene-grid, .trust-row { grid-template-columns: repeat(2, 1fr); }
    .timeline { grid-template-columns: 1fr; }
    .timeline::before { display: none; }
    .timeline li { padding-bottom: 20px; }
    .ability-grid, .why-how, .contact-grid, .check-list { grid-template-columns: 1fr; }
    .who-grid, .belief-grid, .parts-grid { grid-template-columns: 1fr; }
    .tech-choice { flex-direction: column; }
    .section { padding: 60px 0; }
    .site-footer__inner { flex-direction: column; align-items: flex-start; }
    .footer-right { text-align: left; }
}
@media (max-width: 560px) {
    .scene-grid, .trust-row { grid-template-columns: 1fr; }
    .hero { min-height: 78vh; }
}

.ability:last-child:nth-child(odd) { grid-column: 1 / -1; }

/* 整机 */
.machine {
    background: var(--card); border: 1px solid var(--border); border-radius: 24px; box-shadow: var(--shadow);
    padding: 34px 36px; border-left: 6px solid var(--terra);
}
.machine__tag { font-size: 13px; font-weight: 700; letter-spacing: .08em; color: var(--terra); }
.machine__title { font-size: 26px; font-weight: 800; margin: 8px 0 8px; }
.machine__line { font-size: 17px; margin-bottom: 14px; }
.machine__list { margin-bottom: 16px; }
.machine__buy { font-size: 14px; color: var(--muted); margin-bottom: 22px; }

/* 预约：小程序二维码 */
.book-mp {
    display: flex; align-items: center; gap: 24px; text-align: left;
    background: rgba(255, 255, 255, .9); border-radius: 24px; padding: 20px 28px; box-shadow: var(--shadow);
}
.book-mp__qr { width: 148px; height: 148px; object-fit: contain; border-radius: 12px; }
.book-mp__name { font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.book-mp__text p { color: var(--muted); max-width: 18em; }

/* 商务合作 */
.biz { margin-top: 20px; }
.qr-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 720px; }
.qr-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; text-align: center; }
.qr-item img { width: 100%; max-width: 160px; margin: 0 auto 8px; border-radius: 10px; }
.qr-item figcaption { font-weight: 700; }
@media (max-width: 560px) {
    .book-mp { flex-direction: column; text-align: center; }
    .qr-grid { grid-template-columns: 1fr; }
    .machine { padding: 26px 22px; }
}