/* ============================================
   铁腕 - 布局样式
   包含：顶部横幅、导航栏、Hero区域、装饰元素
   ============================================ */

/* Top Banner */
.top-banner {
    background: var(--color-brand-yellow);
    padding: 10px 20px;
    text-align: center;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.8px;
    color: var(--color-text-primary);
    border-bottom: 2px solid #000;
    text-transform: uppercase;
}

.top-banner a {
    color: var(--color-text-primary);
    text-decoration: none;
    margin-left: 6px;
    font-weight: 800;
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 48px;
    height: var(--header-desktop);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--color-bg-page);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    text-decoration: none;
}

.logo-icon svg {
    width: 64px;
    height: 64px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link:hover { 
    color: var(--color-text-primary); 
}

.nav-link.has-dropdown::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid var(--color-text-secondary);
    margin-left: 4px;
}

.nav-buttons {
    display: flex;
    gap: 16px;
    align-items: center;
}

/* Hero Section */
.hero {
    padding: 70px 48px 100px;
    text-align: center;
    position: relative;
    background: var(--color-bg-page);
    overflow: visible;
}

.hero h1 {
    font-size: clamp(40px, 5.5vw, 58px);
    font-weight: 400;
    letter-spacing: 8px;
    line-height: 1.15;
    max-width: 850px;
    margin: 0 auto 24px;
    text-transform: uppercase;
    color: var(--color-text-primary);
}

.hero-subtitle {
    font-size: 15px;
    color: var(--color-text-secondary);
    max-width: 620px;
    margin: 0 auto 36px;
    line-height: 1.7;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 50px;
}

.hero-visual {
    position: relative;
    max-width: 920px;
    margin: 0 auto;
}

/* Cloud Decorations */
.cloud-deco {
    position: absolute;
    background: #fff;
    border-radius: 50px;
    box-shadow: var(--shadow-float);
    z-index: 1;
    border: 1.5px solid #000;
}

.cloud-deco::before,
.cloud-deco::after {
    content: '';
    position: absolute;
    background: #fff;
    border-radius: 50%;
    border: 1.5px solid #000;
}

.cloud-a {
    width: 90px;
    height: 32px;
    top: 15%;
    left: 6%;
}
.cloud-a::before {
    width: 42px;
    height: 42px;
    top: -22px;
    left: 12px;
}
.cloud-a::after {
    width: 32px;
    height: 32px;
    top: -12px;
    right: 12px;
}

.cloud-b {
    width: 110px;
    height: 36px;
    top: 55%;
    left: 0%;
}
.cloud-b::before {
    width: 52px;
    height: 52px;
    top: -26px;
    left: 18px;
}
.cloud-b::after {
    width: 38px;
    height: 38px;
    top: -16px;
    right: 16px;
}

.cloud-c {
    width: 130px;
    height: 42px;
    bottom: 5%;
    right: 2%;
}
.cloud-c::before {
    width: 62px;
    height: 62px;
    top: -32px;
    left: 22px;
}
.cloud-c::after {
    width: 46px;
    height: 46px;
    top: -20px;
    right: 22px;
}

.cloud-d {
    width: 75px;
    height: 28px;
    top: 30%;
    right: 25%;
}
.cloud-d::before {
    width: 35px;
    height: 35px;
    top: -18px;
    left: 10px;
}
.cloud-d::after {
    width: 26px;
    height: 26px;
    top: -10px;
    right: 10px;
}

/* Floating Shapes */
.float-shape {
    position: absolute;
    z-index: 1;
}

.shape-tri {
    top: 28%;
    left: 9%;
    width: 22px;
    height: 22px;
}

.shape-tri svg {
    width: 100%;
    height: 100%;
    display: block;
}

.shape-sq {
    top: 52%;
    left: -1%;
    width: 18px;
    height: 18px;
    background: #f87171;
    transform: rotate(12deg);
    border-radius: 2px;
    border: 1.5px solid #000;
}

.shape-diamond {
    bottom: 22%;
    right: 7%;
    width: 20px;
    height: 20px;
    background: #2dd4bf;
    transform: rotate(45deg);
    border-radius: 3px;
    border: 1.5px solid #000;
}

/* Assistant Character */
.duck-wrapper {
    position: absolute;
    top: -55px;
    right: 50px;
    z-index: 20;
}

.duck-bubble {
    position: absolute;
    top: -48px;
    right: -30px;
    background: #fff;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.3px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
    color: var(--color-text-primary);
}

.duck-bubble::after {
    content: '';
    position: absolute;
    bottom: -7px;
    left: 22px;
    width: 0;
    height: 0;
    border-left: 7px solid transparent;
    border-right: 7px solid transparent;
    border-top: 7px solid #fff;
}

.duck-svg {
    width: 82px;
    height: 82px;
}