/* =========================================
   鹤贤堂大药房 - 官网样式
   主色：药都绿 #2d8a4f   辅色：米白 #f7f5ef   点缀：金 #c9a45c
   ========================================= */

:root {
    --primary: #2d8a4f;
    --primary-dark: #1f6a3a;
    --primary-light: #4caf73;
    --primary-soft: #e8f3ec;
    --gold: #c9a45c;
    --gold-dark: #a6843f;
    --ink: #2b2b2b;
    --ink-soft: #5b5b5b;
    --bg: #f7f5ef;
    --bg-soft: #ffffff;
    --line: #e6e1d3;
    --shadow: 0 8px 30px rgba(45, 138, 79, .08);
    --shadow-lg: 0 20px 60px rgba(45, 138, 79, .15);
    --radius: 14px;
    --radius-lg: 22px;
    --maxw: 1200px;
    --tr: .3s cubic-bezier(.4,0,.2,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; transition: color var(--tr); }
a:hover { color: var(--primary); }

.container {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== 顶部导航 ========== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 999;
    background: rgba(247, 245, 239, .85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    transition: all var(--tr);
}
.site-header.scrolled {
    background: rgba(255,255,255,.95);
    border-bottom-color: var(--line);
    box-shadow: 0 2px 16px rgba(0,0,0,.05);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.logo img {
    width: 44px; height: 44px;
    border-radius: 10px;
    object-fit: cover;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-name {
    font-size: 19px;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: 1px;
}
.logo-slogan {
    font-size: 10px;
    color: var(--ink-soft);
    letter-spacing: 2px;
    margin-top: 2px;
}
.nav {
    display: flex;
    gap: 8px;
}
.nav a {
    padding: 8px 18px;
    font-size: 15px;
    color: var(--ink-soft);
    border-radius: 30px;
    transition: all var(--tr);
    position: relative;
}
.nav a:hover, .nav a.active {
    color: var(--primary-dark);
    background: var(--primary-soft);
}
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 36px;
    height: 36px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
}
.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--primary-dark);
    border-radius: 2px;
    transition: all var(--tr);
}

/* ========== Banner ========== */
.banner {
    position: relative;
    min-height: 640px;
    max-height: 820px;
    padding: 130px 0 80px;
    overflow: hidden;
    display: flex;
    align-items: center;
}
.banner-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at top right, rgba(76,175,115,.25), transparent 60%),
        radial-gradient(ellipse at bottom left, rgba(201,164,92,.18), transparent 60%),
        linear-gradient(135deg, #f7f5ef 0%, #e8f3ec 100%);
    z-index: -2;
}
.banner-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        repeating-linear-gradient(45deg, transparent, transparent 60px, rgba(45,138,79,.03) 60px, rgba(45,138,79,.03) 61px);
}
.banner-inner {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 60px;
    align-items: center;
}
.banner-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(45,138,79,.1);
    color: var(--primary-dark);
    border-radius: 30px;
    font-size: 14px;
    margin-bottom: 20px;
    letter-spacing: 1px;
}
.banner h1 {
    font-size: 54px;
    line-height: 1.25;
    color: var(--primary-dark);
    margin-bottom: 20px;
    font-weight: 800;
    letter-spacing: 2px;
}
.banner h1 br { display: block; }
.banner-desc {
    font-size: 17px;
    color: var(--ink-soft);
    margin-bottom: 32px;
    line-height: 1.8;
}
.banner-points {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 24px;
    max-width: 520px;
}
.banner-points li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--ink);
    font-size: 14.5px;
}
.banner-points i {
    display: inline-flex;
    width: 20px; height: 20px;
    align-items: center; justify-content: center;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    font-size: 11px;
    font-style: normal;
}
.banner-art {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 480px;
}
.banner-phone {
    width: 320px; height: 320px;
    border-radius: 50%;
    background: linear-gradient(135deg, #fff 0%, #e8f3ec 100%);
    box-shadow: 0 30px 80px rgba(45,138,79,.25);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
    z-index: 2;
    padding: 30px;
}
.banner-phone img { width: 100%; height: 100%; object-fit: contain; border-radius: 50%; }
.banner-deco {
    position: absolute;
    border-radius: 50%;
    z-index: 1;
}
.deco-1 {
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(201,164,92,.3), transparent 70%);
    top: 0; right: 0;
    animation: pulse 4s ease-in-out infinite;
}
.deco-2 {
    width: 160px; height: 160px;
    background: radial-gradient(circle, rgba(76,175,115,.35), transparent 70%);
    bottom: 20px; left: 10px;
    animation: pulse 5s ease-in-out infinite reverse;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: .8; }
    50% { transform: scale(1.1); opacity: 1; }
}

/* ========== 滚动渐入辅助（默认可见，进入视口时有平滑上浮） ========== */
.reveal {
    transition: opacity .6s ease, transform .6s ease;
}
.reveal.in-view {
    animation: revealIn .7s ease both;
}
@keyframes revealIn {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}
.section {
    padding: 100px 0;
    position: relative;
}
.section-head {
    text-align: center;
    margin-bottom: 60px;
}
.section-tag {
    display: inline-block;
    padding: 5px 16px;
    background: var(--primary-soft);
    color: var(--primary-dark);
    border-radius: 30px;
    font-size: 12px;
    letter-spacing: 2px;
    margin-bottom: 14px;
    font-weight: 600;
}
.section-head h2 {
    font-size: 38px;
    color: var(--ink);
    margin-bottom: 12px;
    letter-spacing: 1px;
}
.section-head p {
    color: var(--ink-soft);
    font-size: 16px;
}

/* ========== 关于我们 ========== */
.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}
.about-card {
    background: var(--bg-soft);
    padding: 36px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: all var(--tr);
    border: 1px solid transparent;
}
.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-soft);
}
.about-icon {
    width: 60px; height: 60px;
    margin: 0 auto 18px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
    font-weight: 700;
    box-shadow: 0 8px 16px rgba(45,138,79,.25);
}
.about-card h3 {
    color: var(--primary-dark);
    margin-bottom: 10px;
    font-size: 18px;
}
.about-card p {
    color: var(--ink-soft);
    font-size: 14px;
    line-height: 1.7;
}
.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: 50px 30px;
    color: #fff;
    box-shadow: var(--shadow-lg);
}
.stat-item {
    text-align: center;
    position: relative;
}
.stat-item:not(:last-child)::after {
    content: "";
    position: absolute;
    right: -12px; top: 50%;
    transform: translateY(-50%);
    width: 1px; height: 40px;
    background: rgba(255,255,255,.25);
}
.stat-num {
    display: block;
    font-size: 42px;
    font-weight: 800;
    color: var(--gold);
    letter-spacing: 1px;
    line-height: 1.1;
}
.stat-label {
    display: block;
    font-size: 14px;
    margin-top: 8px;
    opacity: .9;
    letter-spacing: 1px;
}

/* ========== APP 介绍 ========== */
.app-section {
    background: linear-gradient(180deg, var(--bg) 0%, #ffffff 100%);
}
.app-wrap {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 70px;
    align-items: center;
}
.app-lead {
    font-size: 17px;
    color: var(--ink-soft);
    margin-bottom: 30px;
}
.feature-list {
    list-style: none;
    margin-bottom: 0;
}
.feature-list li {
    display: flex;
    gap: 16px;
    padding: 18px 0;
    border-bottom: 1px dashed var(--line);
}
.feature-list li:last-child { border-bottom: none; }
.li-icon {
    flex-shrink: 0;
    width: 48px; height: 48px;
    background: var(--primary-soft);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px;
}
.feature-list h4 {
    color: var(--primary-dark);
    margin-bottom: 4px;
    font-size: 16px;
}
.feature-list p {
    color: var(--ink-soft);
    font-size: 14px;
    line-height: 1.6;
}

/* ========== APP 真实截图 ========== */
.app-phone-area {
    display: flex;
    justify-content: center;
    align-items: center;
}
.app-screenshot {
    position: relative;
    max-width: 340px;
    border-radius: 32px;
    overflow: hidden;
    background: #fff;
    padding: 12px;
    box-shadow: 0 30px 60px rgba(0,0,0,.18), 0 0 0 1px rgba(0,0,0,.04);
}
.app-screenshot::before {
    content: "";
    position: absolute;
    top: 12px; left: 50%;
    transform: translateX(-50%);
    width: 80px; height: 18px;
    background: #1a1a1a;
    border-radius: 0 0 12px 12px;
    z-index: 2;
}
.app-screenshot img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 22px;
}

/* ========== 功能详情 ========== */
.features-section {
    background: var(--bg);
}
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 70px;
    align-items: center;
    margin-bottom: 100px;
}
.feature-block:last-child { margin-bottom: 0; }
.feature-block.reverse .feature-pic { order: 2; }
.feature-block.reverse .feature-text { order: 1; }
.feature-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--gold);
    color: #fff;
    border-radius: 30px;
    font-size: 11px;
    letter-spacing: 2px;
    font-weight: 600;
    margin-bottom: 14px;
}
.feature-text h3 {
    font-size: 32px;
    color: var(--primary-dark);
    margin-bottom: 16px;
    letter-spacing: 1px;
}
.feature-text > p {
    color: var(--ink-soft);
    font-size: 16px;
    margin-bottom: 20px;
    line-height: 1.8;
}
.check-list {
    list-style: none;
}
.check-list li {
    padding: 8px 0;
    color: var(--ink);
    font-size: 15px;
    line-height: 1.7;
}
.check-list li b { color: var(--primary-dark); }

/* 功能配图 */
.feature-pic {
    position: relative;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--primary-soft) 0%, #fff 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.pic-mock {
    width: 100%;
    height: 100%;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(0,0,0,.1);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    position: relative;
    overflow: hidden;
}
.pic-float {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #fff;
    padding: 8px 18px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    box-shadow: 0 6px 14px rgba(45,138,79,.35);
}

/* 舌诊 */
.tongue-circle {
    width: 200px; height: 200px;
    margin: 30px auto 0;
    background: radial-gradient(circle, #ffd4d4 0%, #ff9d9d 60%, #e07070 100%);
    border-radius: 50%;
    border: 6px solid #fff;
    box-shadow: 0 0 0 4px var(--primary), 0 12px 30px rgba(0,0,0,.15);
    position: relative;
    animation: tonguePulse 3s ease-in-out infinite;
}
@keyframes tonguePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.03); }
}
.tongue-inner {
    position: absolute;
    inset: 30px;
    background: radial-gradient(ellipse, #ff8080 0%, #d64040 100%);
    border-radius: 50%;
}
.tongue-dot {
    position: absolute;
    background: #ff4040;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(255,64,64,.6);
}
.tongue-dot.d1 { width: 14px; height: 14px; top: 30%; left: 25%; }
.tongue-dot.d2 { width: 10px; height: 10px; top: 50%; right: 30%; }
.tongue-dot.d3 { width: 8px; height: 8px; bottom: 30%; left: 50%; }
.scan-line {
    position: absolute;
    left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    box-shadow: 0 0 10px var(--primary);
    animation: scan 2.5s linear infinite;
}
@keyframes scan {
    0% { top: 10%; }
    100% { top: 90%; }
}

/* 买药 */
.shop-mock { gap: 16px; padding: 20px; }
.shop-card {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: linear-gradient(135deg, #f9f9f9, #fff);
    border: 1px solid var(--line);
    border-radius: 10px;
}
.sc-thumb {
    width: 50px; height: 50px;
    background: linear-gradient(135deg, #ff9966, #ff5e62);
    border-radius: 8px;
    flex-shrink: 0;
}
.thumb-2 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.shop-card strong { font-size: 13px; color: var(--ink); display: block; }
.shop-card small { font-size: 10px; color: var(--ink-soft); display: block; margin: 2px 0; }
.price { color: var(--primary) !important; font-size: 14px !important; font-weight: 700; }
.shop-tag {
    background: var(--primary-soft);
    color: var(--primary-dark);
    text-align: center;
    padding: 8px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 600;
}

/* 发布信息 */
.post-mock { gap: 12px; }
.post-item {
    display: flex;
    gap: 10px;
    padding: 10px;
    border-radius: 10px;
    background: #fafafa;
}
.post-avatar {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, #4caf73, #2d8a4f);
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
}
.post-avatar::after {
    content: "👤";
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}
.av-2 { background: linear-gradient(135deg, #c9a45c, #a6843f); }
.av-3 { background: linear-gradient(135deg, #5b9bd5, #2e75b6); }
.post-item strong { font-size: 13px; color: var(--ink); }
.post-item small { font-size: 10px; color: var(--ink-soft); margin-left: 6px; }
.post-item p { font-size: 12px; color: var(--ink-soft); margin-top: 4px; }

/* 签到 */
.sign-mock {
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
}
.sign-card {
    background: #fff;
    border-radius: 14px;
    padding: 20px;
    text-align: center;
    color: var(--ink);
    width: 100%;
    box-shadow: 0 10px 30px rgba(0,0,0,.15);
}
.sign-icon { font-size: 36px; margin-bottom: 6px; }
.sign-card > strong { display: block; color: var(--primary-dark); margin-bottom: 14px; font-size: 15px; }
.sign-week {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    margin-bottom: 14px;
}
.sign-week span {
    aspect-ratio: 1;
    background: #f0f0f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: #aaa;
}
.sign-week span.ok { background: var(--primary); color: #fff; }
.sign-week span.today { background: var(--gold); color: #fff; animation: pulse 1.5s infinite; }
.sign-points { font-size: 13px; color: var(--ink-soft); margin-bottom: 14px; }
.sign-points b { color: var(--primary); font-size: 20px; }
.sign-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    padding: 10px 30px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    box-shadow: 0 6px 14px rgba(45,138,79,.35);
}

/* ========== 其他功能 ========== */
.extras-section {
    background: #fff;
}
.extras-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.extra-item {
    padding: 30px 24px;
    background: var(--bg);
    border-radius: var(--radius);
    transition: all var(--tr);
    border: 1px solid transparent;
}
.extra-item:hover {
    background: var(--primary-soft);
    border-color: var(--primary);
    transform: translateY(-4px);
}
.ex-icon {
    width: 50px; height: 50px;
    background: #fff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 14px;
    box-shadow: var(--shadow);
}
.extra-item h4 {
    color: var(--primary-dark);
    margin-bottom: 8px;
    font-size: 16px;
}
.extra-item p {
    color: var(--ink-soft);
    font-size: 13px;
    line-height: 1.6;
}

/* ========== 服务承诺 ========== */
.promise-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: #fff;
}
.promise-section .section-head h2,
.promise-section .section-head p { color: #fff; }
.promise-section .section-tag {
    background: rgba(255,255,255,.15);
    color: #fff;
}
.promise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.promise-item {
    padding: 30px 24px;
    background: rgba(255,255,255,.08);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,.15);
    transition: all var(--tr);
}
.promise-item:hover {
    background: rgba(255,255,255,.15);
    transform: translateY(-4px);
}
.pi-num {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--gold);
    margin-bottom: 10px;
    font-family: "Georgia", serif;
}
.promise-item h4 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 8px;
}
.promise-item p {
    color: rgba(255,255,255,.85);
    font-size: 13px;
    line-height: 1.7;
}

/* ========== 联系我们 ========== */
.contact-section { background: var(--bg); }
.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.contact-item {
    padding: 30px 20px;
    background: var(--bg-soft);
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: all var(--tr);
}
.contact-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.ct-icon {
    font-size: 32px;
    margin-bottom: 12px;
}
.contact-item h4 {
    color: var(--primary-dark);
    font-size: 15px;
    margin-bottom: 6px;
}
.contact-item p {
    color: var(--ink-soft);
    font-size: 13px;
}

/* ========== 底部 ========== */
.site-footer {
    background: #1a1f1c;
    color: #ccc;
    padding-top: 60px;
}
.footer-inner {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}
.footer-brand img {
    width: 56px; height: 56px;
    border-radius: 12px;
}
.footer-brand strong {
    display: block;
    color: #fff;
    font-size: 18px;
    margin-bottom: 4px;
}
.footer-brand span {
    font-size: 11px;
    color: var(--gold);
    letter-spacing: 2px;
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.fl-group h5 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 8px;
}
.fl-group h5::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0;
    width: 24px; height: 2px;
    background: var(--gold);
}
.fl-group a {
    display: block;
    color: #aaa;
    font-size: 13px;
    padding: 4px 0;
    transition: color var(--tr);
}
.fl-group a:hover { color: var(--gold); }
.fl-group p {
    font-size: 12px;
    color: #999;
    line-height: 1.8;
    margin-bottom: 8px;
}
.footer-bottom {
    padding: 24px 0;
    background: rgba(0,0,0,.3);
}
.footer-bottom .container { text-align: center; }
.footer-bottom p {
    font-size: 12px;
    color: #888;
    margin: 4px 0;
}
.footer-bottom a {
    color: var(--gold);
}
.footer-tip {
    color: #666 !important;
    font-size: 11px !important;
    margin-top: 8px;
    font-style: italic;
}

/* ========== 回到顶部 ========== */
.back-top {
    position: fixed;
    bottom: 30px; right: 30px;
    width: 48px; height: 48px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 8px 20px rgba(45,138,79,.35);
    opacity: 0;
    visibility: hidden;
    transition: all var(--tr);
    z-index: 99;
}
.back-top.show {
    opacity: 1;
    visibility: visible;
}
.back-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
    color: #fff;
}

/* ========== 响应式 ========== */
@media (max-width: 992px) {
    .banner h1 { font-size: 40px; }
    .banner-inner { grid-template-columns: 1fr; gap: 40px; }
    .banner-art { min-height: 360px; }
    .banner-phone { width: 220px; height: 220px; }
    .about-grid { grid-template-columns: repeat(2, 1fr); }
    .about-stats { grid-template-columns: repeat(2, 1fr); gap: 30px; }
    .stat-item:not(:last-child)::after { display: none; }
    .app-wrap { grid-template-columns: 1fr; gap: 50px; }
    .app-screenshot { max-width: 280px; }
    .feature-block { grid-template-columns: 1fr; gap: 40px; margin-bottom: 70px; }
    .feature-block.reverse .feature-pic { order: 0; }
    .feature-block.reverse .feature-text { order: 0; }
    .extras-grid { grid-template-columns: repeat(2, 1fr); }
    .promise-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr; gap: 40px; }
    .footer-links { grid-template-columns: 1fr 1fr; }
    .section { padding: 70px 0; }
    .section-head h2 { font-size: 30px; }
    .feature-text h3 { font-size: 26px; }
}

@media (max-width: 640px) {
    .container { padding: 0 16px; }
    .header-inner { height: 64px; }
    .logo-slogan { display: none; }
    .menu-toggle { display: flex; }
    .nav {
        position: absolute;
        top: 64px; left: 0; right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px;
        gap: 0;
        box-shadow: 0 8px 20px rgba(0,0,0,.1);
        transform: translateY(-20px);
        opacity: 0;
        visibility: hidden;
        transition: all var(--tr);
    }
    .nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    .nav a {
        padding: 12px;
        border-bottom: 1px solid var(--line);
        border-radius: 0;
    }
    .banner { padding: 100px 0 60px; min-height: auto; }
    .banner h1 { font-size: 32px; }
    .banner-desc { font-size: 15px; }
    .banner-points { grid-template-columns: 1fr; }
    .banner-art { min-height: 280px; }
    .banner-phone { width: 180px; height: 180px; }
    .deco-1 { width: 120px; height: 120px; }
    .deco-2 { width: 100px; height: 100px; }
    .about-grid { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: 1fr; gap: 20px; padding: 30px 20px; }
    .stat-num { font-size: 32px; }
    .extras-grid { grid-template-columns: 1fr; }
    .promise-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: 1fr; gap: 24px; }
    .feature-pic { padding: 24px; }
    .app-screenshot { max-width: 240px; }
    .tongue-circle { width: 140px; height: 140px; }
    .tongue-inner { inset: 20px; }
    .section { padding: 60px 0; }
    .section-head { margin-bottom: 40px; }
    .section-head h2 { font-size: 26px; }
    .feature-text h3 { font-size: 22px; }
}