/* ============================================================
   style.css — 包头市国纳贸易有限公司 官网样式表
   配色: 墨绿(#1a4a3a) + 香槟金(#c89f5c) + 暖灰(#f7f5f0)
   命名: BEM (Block__Element--Modifier)
   ============================================================ */

/* ----- CSS Variables ----- */
:root {
    --green: #1a4a3a;
    --green-dark: #0f2820;
    --green-light: #236b54;
    --gold: #c89f5c;
    --gold-light: #dbb97a;
    --gold-dark: #a8803f;
    --warm-gray: #f7f5f0;
    --warm-dark: #ece8e0;
    --text: #333;
    --text-light: #666;
    --text-lighter: #999;
    --white: #fff;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: 0.3s ease;
}

/* ----- Reset & Base ----- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* ----- Utility ----- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.text-gold { color: var(--gold); }

/* ----- Buttons ----- */
.btn {
    display: inline-block; padding: 13px 34px; border-radius: 6px;
    font-size: 1rem; font-weight: 600; cursor: pointer;
    border: 2px solid transparent; transition: all var(--transition);
    text-align: center; letter-spacing: 0.5px;
}
.btn--gold { background: var(--gold); color: var(--white); border-color: var(--gold); }
.btn--gold:hover { background: var(--gold-dark); border-color: var(--gold-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(200,159,92,0.3); }
.btn--outline { background: transparent; color: var(--green); border-color: var(--green); }
.btn--outline:hover { background: var(--green); color: var(--white); }
.btn--outline-white { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.5); }
.btn--outline-white:hover { background: var(--white); color: var(--green); border-color: var(--white); }
.btn--full { width: 100%; }

/* ----- Section Common ----- */
.section { padding: 90px 0; }
.section--light { background: var(--warm-gray); }
.section__header { text-align: center; margin-bottom: 56px; }
.section__emoji { font-size: 2.8rem; display: block; margin-bottom: 10px; }
.section__header h2 { font-size: 2rem; font-weight: 700; letter-spacing: 2px; margin-bottom: 10px; color: var(--green); }
.section__sub { font-size: 1.05rem; color: var(--text-light); }

/* ============================================================
   PAGE LOADER
   ============================================================ */
.page-loader {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: var(--green-dark); z-index: 9999;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
.page-loader.hide { opacity: 0; visibility: hidden; pointer-events: none; }
.page-loader__logo { text-align: center; margin-bottom: 30px; }
.page-loader__icon { font-size: 3.5rem; display: block; margin-bottom: 8px; animation: float 2s ease-in-out infinite; }
.page-loader__text { font-size: 1.8rem; font-weight: 700; color: var(--gold); letter-spacing: 4px; }
.page-loader__bar { width: 200px; height: 3px; background: rgba(255,255,255,0.15); border-radius: 2px; overflow: hidden; }
.page-loader__bar-fill { width: 0; height: 100%; background: var(--gold); border-radius: 2px; animation: loaderBar 1.2s ease forwards; }

@keyframes loaderBar {
    0% { width: 0; }
    50% { width: 70%; }
    100% { width: 100%; }
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    background: rgba(15, 40, 32, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: all var(--transition);
}
.header.scrolled {
    background: rgba(255,255,255,0.97);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo {
    font-size: 1.3rem; font-weight: 700; color: var(--gold);
    letter-spacing: 2px; flex-shrink: 0; transition: color var(--transition);
}
.header.scrolled .logo { color: var(--green); }

/* Nav */
.nav__list { display: flex; gap: 2px; }
.nav__link {
    display: block; padding: 8px 15px; color: rgba(255,255,255,0.9);
    font-size: 0.9rem; font-weight: 500; border-radius: 4px;
    transition: all var(--transition); position: relative;
}
.nav__link:hover, .nav__link.active { color: var(--gold); background: rgba(200,159,92,0.12); }
.header.scrolled .nav__link { color: var(--text); }
.header.scrolled .nav__link:hover,
.header.scrolled .nav__link.active { color: var(--gold); background: rgba(200,159,92,0.1); }

/* Mobile Toggle */
.mobile-toggle {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer;
    padding: 8px; z-index: 1001;
}
.mobile-toggle span {
    display: block; width: 26px; height: 2.5px;
    background: var(--gold); border-radius: 2px; transition: all var(--transition);
}
.header.scrolled .mobile-toggle span { background: var(--green); }
.mobile-toggle.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ============================================================
   HERO SLIDER
   ============================================================ */
.hero {
    position: relative; height: 100vh; min-height: 560px; overflow: hidden;
}
.hero__slider { width: 100%; height: 100%; position: relative; }
.hero__slide {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity 0.8s ease; z-index: 1;
}
.hero__slide.active { opacity: 1; z-index: 5; }
.hero__bg-img {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover; z-index: 1;
}
.hero__overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(26,74,58,0.6) 0%, rgba(15,51,40,0.5) 100%);
    z-index: 2;
}
.hero__content {
    position: relative; z-index: 3; text-align: center;
    color: var(--white); padding: 0 20px;
}
.hero__icons { font-size: 3rem; margin-bottom: 20px; animation: float 3s ease-in-out infinite; }
.hero__content h1 { font-size: 2.8rem; font-weight: 800; margin-bottom: 16px; letter-spacing: 3px; }
.hero__sub { font-size: 1.15rem; color: rgba(255,255,255,0.85); margin-bottom: 32px; }
.hero__btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Scroll Hint */
.hero__scroll-hint {
    position: absolute; bottom: 70px; left: 50%; transform: translateX(-50%);
    z-index: 10; text-align: center; color: rgba(255,255,255,0.5);
    font-size: 0.78rem; letter-spacing: 2px; animation: fadeInOut 2s ease-in-out infinite;
}
.hero__scroll-mouse {
    width: 22px; height: 34px; border: 2px solid rgba(255,255,255,0.3);
    border-radius: 11px; margin: 8px auto 0; position: relative;
}
.hero__scroll-mouse span {
    display: block; width: 4px; height: 8px; background: var(--gold);
    border-radius: 2px; margin: 6px auto 0; animation: scrollWheel 1.5s ease-in-out infinite;
}
@keyframes scrollWheel {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(10px); }
}
@keyframes fadeInOut {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* Indicators */
.hero__indicators {
    position: absolute; bottom: 30px; left: 50%;
    transform: translateX(-50%); display: flex; gap: 12px; z-index: 10;
}
.hero__dot {
    width: 12px; height: 12px; border-radius: 50%;
    background: rgba(255,255,255,0.4); cursor: pointer; transition: all var(--transition);
}
.hero__dot.active, .hero__dot:hover { background: var(--gold); transform: scale(1.3); }

/* Arrows */
.hero__arrow {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 10;
    width: 50px; height: 50px; border-radius: 50%;
    background: rgba(255,255,255,0.12); border: 2px solid rgba(255,255,255,0.25);
    color: var(--white); font-size: 2rem; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition); backdrop-filter: blur(4px); line-height: 1;
}
.hero__arrow:hover { background: var(--gold); border-color: var(--gold); }
.hero__arrow--prev { left: 24px; }
.hero__arrow--next { right: 24px; }

/* ============================================================
   STATS BAR
   ============================================================ */
.stats { padding: 50px 0; background: var(--green-dark); }
.stats__grid { display: flex; justify-content: center; gap: 50px; flex-wrap: wrap; }
.stats__item { text-align: center; color: var(--white); min-width: 100px; }
.stats__num { font-size: 2.4rem; font-weight: 800; color: var(--gold); }
.stats__suffix { font-size: 1.2rem; color: var(--gold); font-weight: 600; }
.stats__label { font-size: 0.85rem; color: rgba(255,255,255,0.55); margin-top: 4px; letter-spacing: 0.5px; }

/* ============================================================
   ABOUT
   ============================================================ */
.about__content { max-width: 860px; margin: 0 auto; }
.about__content p { margin-bottom: 18px; font-size: 1rem; line-height: 1.9; color: #444; text-indent: 2em; }

/* ============================================================
   SERVICES
   ============================================================ */
.services__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 36px 28px; text-align: center;
    box-shadow: var(--shadow); border: 1px solid transparent;
    transition: all var(--transition); cursor: default;
    position: relative; overflow: hidden;
}
.service-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
    background: linear-gradient(to right, var(--gold), var(--green-light));
    transform: scaleX(0); transition: transform 0.4s ease; transform-origin: left;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--gold); }
.service-card__icon { font-size: 3rem; display: block; margin-bottom: 16px; }
.service-card h3 { font-size: 1.1rem; color: var(--green); margin-bottom: 10px; }
.service-card p { font-size: 0.92rem; color: var(--text-light); line-height: 1.7; }

/* ============================================================
   PROCESS — 服务流程
   ============================================================ */
.process__grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px 24px;
    position: relative;
}
.process-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 32px 24px; text-align: center;
    box-shadow: var(--shadow); position: relative;
    transition: all var(--transition);
}
.process-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.process-card__num {
    position: absolute; top: -16px; left: 50%; transform: translateX(-50%);
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--gold); color: var(--white);
    font-size: 0.78rem; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 2px 10px rgba(200,159,92,0.4);
}
.process-card__icon { font-size: 2.6rem; display: block; margin: 10px 0 12px; }
.process-card h3 { font-size: 1.05rem; color: var(--green); margin-bottom: 8px; }
.process-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.6; }

/* ============================================================
   CASES
   ============================================================ */
.cases__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 32px 24px 24px; position: relative;
    box-shadow: var(--shadow); border-left: 4px solid transparent;
    transition: all var(--transition);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-left-color: var(--gold); }
.case-card__badge {
    display: inline-block; background: var(--gold); color: var(--white);
    font-size: 0.78rem; font-weight: 600; padding: 4px 14px;
    border-radius: 20px; margin-bottom: 14px;
}
.case-card h3 { font-size: 1.1rem; color: var(--green); margin-bottom: 6px; }
.case-card__info { font-size: 0.85rem; color: var(--gold-dark); margin-bottom: 12px; font-weight: 500; }
.case-card__desc { font-size: 0.9rem; color: var(--text-light); line-height: 1.7; margin-bottom: 14px; }
.case-card__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.case-card__tags li {
    background: rgba(26,74,58,0.06); color: var(--green);
    font-size: 0.78rem; padding: 3px 10px; border-radius: 20px; font-weight: 500;
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.testimonial-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 30px 28px; box-shadow: var(--shadow);
    transition: all var(--transition); position: relative;
}
.testimonial-card::before {
    content: '\201C'; position: absolute; top: 10px; left: 20px;
    font-size: 4rem; color: var(--warm-dark); line-height: 1;
    font-family: Georgia, serif;
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.testimonial-card__stars { color: var(--gold); font-size: 1rem; margin-bottom: 14px; letter-spacing: 2px; }
.testimonial-card__text {
    font-size: 0.95rem; color: #444; line-height: 1.8;
    font-style: italic; margin-bottom: 18px; position: relative; z-index: 1;
}
.testimonial-card__author { display: flex; align-items: center; gap: 12px; }
.testimonial-card__avatar {
    width: 44px; height: 44px; border-radius: 50%; background: var(--warm-gray);
    display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
    flex-shrink: 0;
}
.testimonial-card__author strong { display: block; font-size: 0.92rem; color: var(--text); }
.testimonial-card__author span { font-size: 0.8rem; color: var(--text-lighter); }

/* ============================================================
   DELIVERY / STRENGTH
   ============================================================ */
.delivery__content { max-width: 700px; margin: 0 auto; }
.delivery__regions { text-align: center; margin-bottom: 32px; }
.delivery__regions h3 { font-size: 1.3rem; color: var(--green); margin-bottom: 12px; }
.delivery__regions p { font-size: 0.95rem; color: var(--text-light); line-height: 1.8; }
.delivery__features { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.delivery__feature {
    background: var(--white); padding: 16px 28px; border-radius: 50px;
    box-shadow: var(--shadow); font-size: 0.95rem; font-weight: 500;
    color: var(--green); display: flex; align-items: center; gap: 10px;
    transition: all var(--transition);
}
.delivery__feature:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); color: var(--gold); }

/* ============================================================
   PARTNERS
   ============================================================ */
.partners__grid {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 14px;
    max-width: 960px; margin: 0 auto;
}
.partner-badge {
    background: var(--white); border: 1.5px solid rgba(26,74,58,0.1);
    border-radius: 50px; padding: 14px 26px; font-size: 0.92rem;
    font-weight: 600; color: var(--green); box-shadow: var(--shadow);
    transition: all var(--transition); cursor: default;
    display: flex; align-items: center; gap: 8px;
}
.partner-badge span { font-size: 1.1rem; }
.partner-badge:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--gold); }

/* ============================================================
   PROMISES
   ============================================================ */
.promises__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.promises__grid .promise-card:last-child:nth-child(7) { grid-column: 1 / -1; max-width: 400px; margin: 0 auto; }
.promise-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 28px 22px; text-align: center;
    box-shadow: var(--shadow); border: 1px solid transparent;
    transition: all var(--transition);
}
.promise-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--gold); }
.promise-card span { font-size: 1.8rem; display: block; margin-bottom: 10px; }
.promise-card h4 { font-size: 1rem; color: var(--green); margin-bottom: 6px; }
.promise-card p { font-size: 0.88rem; color: var(--text-light); }

/* ============================================================
   NEWS
   ============================================================ */
.news__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 28px 24px; box-shadow: var(--shadow);
    transition: all var(--transition);
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.news-card__emoji { font-size: 2.4rem; display: block; margin-bottom: 10px; text-align: center; }
.news-card h3 { font-size: 1rem; color: var(--green); margin-bottom: 8px; line-height: 1.5; }
.news-card__date { font-size: 0.82rem; color: var(--gold); font-weight: 600; margin-bottom: 10px; }
.news-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.7; }

/* ============================================================
   HONORS
   ============================================================ */
.honor__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.honor-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 32px 20px; text-align: center;
    box-shadow: var(--shadow); border: 1px solid transparent;
    transition: all var(--transition); cursor: pointer;
}
.honor-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--gold); }
.honor-card__icon { font-size: 2.6rem; display: block; margin-bottom: 12px; }
.honor-card h3 { font-size: 1.05rem; color: var(--green); margin-bottom: 6px; }
.honor-card p { font-size: 0.85rem; color: var(--text-light); }

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline { max-width: 700px; margin: 0 auto; position: relative; padding-left: 60px; }
.timeline::before {
    content: ''; position: absolute; left: 28px; top: 8px; bottom: 8px;
    width: 3px; background: linear-gradient(to bottom, var(--gold), var(--green));
    border-radius: 2px;
}
.timeline__item { position: relative; padding-bottom: 32px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__year {
    position: absolute; left: -51px; top: 0;
    width: 42px; height: 42px; border-radius: 50%;
    background: var(--gold); color: var(--white); font-size: 0.8rem;
    font-weight: 700; display: flex; align-items: center; justify-content: center;
    z-index: 2; box-shadow: 0 2px 12px rgba(200,159,92,0.4);
}
.timeline__content {
    background: var(--white); padding: 18px 22px; border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}
.timeline__content h4 { color: var(--green); font-size: 1.05rem; margin-bottom: 4px; }
.timeline__content p { color: var(--text-light); font-size: 0.9rem; }

/* ============================================================
   FAQ
   ============================================================ */
.faq__list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--white); border-radius: var(--radius);
    margin-bottom: 10px; box-shadow: var(--shadow);
    overflow: hidden; transition: all var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-lg); }
.faq-item__question {
    width: 100%; display: flex; justify-content: space-between; align-items: center;
    padding: 18px 24px; background: none; border: none;
    font-size: 1rem; font-weight: 600; color: var(--text);
    cursor: pointer; text-align: left; gap: 16px; font-family: inherit;
    transition: color var(--transition);
}
.faq-item__question:hover { color: var(--green); }
.faq-item__icon {
    flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
    background: var(--warm-gray); display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; font-weight: 700; color: var(--gold); transition: all var(--transition);
}
.faq-item__question[aria-expanded="true"] .faq-item__icon {
    background: var(--gold); color: var(--white); transform: rotate(45deg);
}
.faq-item__answer {
    max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item__answer p {
    padding: 0 24px 18px; font-size: 0.95rem; color: var(--text-light); line-height: 1.8;
}
.faq-item.open .faq-item__answer {
    max-height: 300px;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact__wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; max-width: 960px; margin: 0 auto; }
.contact__form { display: flex; flex-direction: column; gap: 14px; }
.contact__form input,
.contact__form textarea {
    width: 100%; padding: 13px 16px; border: 1.5px solid #ddd;
    border-radius: 6px; font-size: 0.95rem; font-family: inherit;
    transition: border-color var(--transition); background: var(--white);
}
.contact__form input:focus,
.contact__form textarea:focus { outline: none; border-color: var(--gold); background: var(--warm-gray); }
.contact__form textarea { resize: vertical; }
.contact__info { display: flex; flex-direction: column; gap: 18px; }
.contact__info > div { display: flex; align-items: flex-start; gap: 14px; }
.contact__info > div > span { font-size: 1.5rem; flex-shrink: 0; margin-top: 2px; }
.contact__info strong { display: block; font-size: 0.85rem; color: var(--text-lighter); font-weight: 500; margin-bottom: 2px; }
.contact__info p { font-size: 0.95rem; color: var(--text); line-height: 1.6; }
.contact__info a { color: var(--green); font-weight: 500; }
.contact__info a:hover { color: var(--gold); }

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
    background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%);
    padding: 70px 0; text-align: center; color: var(--white);
}
.cta-banner h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; letter-spacing: 2px; }
.cta-banner p { font-size: 1.1rem; color: rgba(255,255,255,0.7); margin-bottom: 32px; }
.cta-banner__btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: #0d221a; color: rgba(255,255,255,0.65); padding-top: 60px; }
.footer__content {
    display: grid; grid-template-columns: 2fr 1fr 1.4fr; gap: 40px;
    padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer__brand h3 { color: var(--gold); font-size: 1.3rem; margin-bottom: 8px; letter-spacing: 2px; }
.footer__brand p { font-size: 0.9rem; margin-bottom: 4px; }
.footer__slogan { color: rgba(255,255,255,0.4); font-size: 0.85rem; margin-top: 8px; }
.footer__links h4, .footer__contact h4 { color: var(--gold); font-size: 1rem; margin-bottom: 16px; }
.footer__links ul li { margin-bottom: 8px; }
.footer__links ul li a { font-size: 0.9rem; color: rgba(255,255,255,0.6); }
.footer__links ul li a:hover { color: var(--gold); }
.footer__contact p { font-size: 0.9rem; margin-bottom: 6px; line-height: 1.7; }
.footer__contact a { color: rgba(255,255,255,0.6); }
.footer__contact a:hover { color: var(--gold); }
.footer__bottom { text-align: center; padding: 20px 0; font-size: 0.85rem; color: rgba(255,255,255,0.3); }

/* ============================================================
   MODAL OVERLAY
   ============================================================ */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.55); backdrop-filter: blur(6px);
    z-index: 2000; display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: all var(--transition);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal-box {
    background: var(--white); border-radius: 16px; padding: 40px 32px;
    max-width: 420px; width: 90%; position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3); text-align: center;
}
.modal-box h3 { font-size: 1.4rem; color: var(--green); margin-bottom: 8px; }
.modal-box p { font-size: 1rem; color: var(--text-light); }
.modal-close {
    position: absolute; top: 12px; right: 18px;
    background: none; border: none; font-size: 2rem; color: var(--text-lighter);
    cursor: pointer; transition: color var(--transition); line-height: 1;
}
.modal-close:hover { color: var(--text); }

/* ============================================================
   CONSULT MODAL
   ============================================================ */
.consult-modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.55); backdrop-filter: blur(6px);
    z-index: 2000; display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: all var(--transition);
}
.consult-modal.open { opacity: 1; visibility: visible; }
.consult-modal__content {
    background: var(--white); border-radius: 16px; padding: 36px 30px;
    max-width: 460px; width: 90%; position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.consult-modal__content h3 { font-size: 1.3rem; color: var(--green); margin-bottom: 6px; text-align: center; }
.consult-modal__sub { font-size: 0.9rem; color: var(--text-lighter); text-align: center; margin-bottom: 20px; }
.consult-modal__content form { display: flex; flex-direction: column; gap: 12px; }
.consult-modal__content input,
.consult-modal__content textarea {
    width: 100%; padding: 12px 16px; border: 1.5px solid #ddd;
    border-radius: 6px; font-size: 0.92rem; font-family: inherit;
    transition: border-color var(--transition); background: var(--warm-gray);
}
.consult-modal__content input:focus,
.consult-modal__content textarea:focus { outline: none; border-color: var(--gold); background: var(--white); }
.consult-modal__content textarea { resize: vertical; }
.consult-modal__close {
    position: absolute; top: 10px; right: 16px;
    background: none; border: none; font-size: 1.8rem; color: var(--text-lighter);
    cursor: pointer; transition: color var(--transition); line-height: 1;
}
.consult-modal__close:hover { color: var(--text); }

/* ============================================================
   FLOATING BUTTONS
   ============================================================ */
.float-btn {
    position: fixed; right: 24px; z-index: 999;
    width: 52px; height: 52px; border-radius: 50%; border: none;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; box-shadow: 0 4px 16px rgba(0,0,0,0.2);
    transition: all var(--transition);
}
.float-btn:hover { transform: scale(1.1); }
.float-btn--consult { bottom: 100px; background: #25d366; color: var(--white); font-size: 1.6rem; }
.float-btn--consult:hover { background: #1da851; }
.float-btn--top {
    bottom: 36px; background: var(--green); color: var(--white); font-size: 1.5rem; font-weight: 700;
    opacity: 0; visibility: hidden; transform: translateY(10px);
}
.float-btn--top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.float-btn--top:hover { background: var(--green-light); }

/* ============================================================
   MOBILE BOTTOM BAR
   ============================================================ */
.mobile-bar {
    display: none; position: fixed; bottom: 0; left: 0; width: 100%;
    z-index: 998; background: var(--white);
    box-shadow: 0 -2px 16px rgba(0,0,0,0.1);
    padding: 8px 16px; gap: 12px;
}
.mobile-bar__btn {
    flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px; border-radius: 6px; font-size: 0.9rem; font-weight: 600;
    transition: all var(--transition);
}
.mobile-bar__btn--call { background: var(--green); color: var(--white); }
.mobile-bar__btn--call:hover { background: var(--green-light); }
.mobile-bar__btn--form { background: var(--gold); color: var(--white); }
.mobile-bar__btn--form:hover { background: var(--gold-dark); }

/* ============================================================
   TOAST
   ============================================================ */
.toast {
    position: fixed; top: 100px; left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: var(--green); color: var(--white);
    padding: 15px 30px; border-radius: 10px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
    z-index: 3000; font-size: 0.95rem; font-weight: 500;
    opacity: 0; visibility: hidden; transition: all 0.4s ease;
}
.toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* ============================================================
   RESPONSIVE — 1024px
   ============================================================ */
@media (max-width: 1024px) {
    .section { padding: 64px 0; }
    .section__header { margin-bottom: 40px; }
    .section__header h2 { font-size: 1.7rem; }

    .hero { height: 70vh; min-height: 420px; }
    .hero__content h1 { font-size: 2.2rem; }

    .services__grid { grid-template-columns: repeat(2, 1fr); }
    .process__grid { grid-template-columns: repeat(2, 1fr); }
    .cases__grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials__grid { grid-template-columns: 1fr 1fr; }
    .news__grid { grid-template-columns: repeat(2, 1fr); }
    .honor__grid { grid-template-columns: repeat(2, 1fr); }
    .promises__grid { grid-template-columns: repeat(2, 1fr); }

    .contact__wrapper { grid-template-columns: 1fr; }
    .footer__content { grid-template-columns: 1fr 1fr; }
    .stats__grid { gap: 36px; }
}

/* ============================================================
   RESPONSIVE — 768px (Mobile)
   ============================================================ */
@media (max-width: 768px) {
    .section { padding: 48px 0; }
    .section__header h2 { font-size: 1.5rem; }
    .section__emoji { font-size: 2.2rem; }
    .container { padding: 0 16px; }

    /* Loader */
    .page-loader__logo { margin-bottom: 20px; }
    .page-loader__icon { font-size: 2.5rem; }
    .page-loader__text { font-size: 1.3rem; }
    .page-loader__bar { width: 150px; }

    /* Header */
    .header__inner { height: 60px; }
    .logo { font-size: 1.1rem; }
    .mobile-toggle { display: flex; }

    .nav {
        position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
        background: var(--green-dark); padding: 80px 28px 30px;
        transition: right 0.35s ease; z-index: 999;
        box-shadow: -4px 0 20px rgba(0,0,0,0.3);
    }
    .nav.open { right: 0; }
    .nav__list { flex-direction: column; gap: 4px; }
    .nav__link { padding: 12px 16px; font-size: 1rem; }

    /* Hero */
    .hero { height: 70vh; min-height: 400px; }
    .hero__content h1 { font-size: 1.6rem; letter-spacing: 1px; }
    .hero__sub { font-size: 0.92rem; }
    .hero__icons { font-size: 2rem; }
    .hero__arrow { display: none; }
    .hero__scroll-hint { bottom: 60px; font-size: 0.7rem; }
    .hero__btns { flex-direction: column; align-items: center; }
    .hero__btns .btn { width: 80%; }

    /* Stats */
    .stats { padding: 32px 0; }
    .stats__grid { gap: 20px; }
    .stats__item { min-width: 80px; }
    .stats__num { font-size: 1.6rem; }
    .stats__suffix { font-size: 1rem; }

    /* Section */
    .section__sub { font-size: 0.92rem; }

    /* Grids -> 1 col */
    .services__grid, .process__grid, .cases__grid,
    .testimonials__grid, .news__grid, .honor__grid,
    .promises__grid { grid-template-columns: 1fr; }
    .promises__grid .promise-card:last-child:nth-child(7) { grid-column: auto; }

    .about__content p { text-indent: 1.5em; font-size: 0.95rem; }
    .delivery__features { flex-direction: column; align-items: center; }
    .delivery__feature { width: 100%; max-width: 320px; }

    .timeline { padding-left: 44px; }
    .timeline::before { left: 20px; }
    .timeline__year { left: -37px; width: 34px; height: 34px; font-size: 0.72rem; }
    .timeline__content { padding: 14px 16px; }

    .faq-item__question { padding: 14px 18px; font-size: 0.95rem; }
    .faq-item__answer p { padding: 0 18px 14px; font-size: 0.9rem; }

    /* CTA */
    .cta-banner { padding: 48px 20px; }
    .cta-banner h2 { font-size: 1.4rem; }
    .cta-banner p { font-size: 0.95rem; }
    .cta-banner__btns { flex-direction: column; align-items: center; }
    .cta-banner__btns .btn { width: 90%; }

    .footer__content { grid-template-columns: 1fr; gap: 24px; }
    .footer { padding-top: 40px; }

    /* Floating buttons adjust for mobile bar */
    .float-btn--consult { bottom: 140px; right: 12px; width: 46px; height: 46px; }
    .float-btn--top { bottom: 76px; right: 12px; width: 46px; height: 46px; }

    /* Show mobile bar */
    .mobile-bar { display: flex; }
    body { padding-bottom: 70px; }

    /* Modals */
    .consult-modal__content { padding: 28px 20px; }
    .modal-box { padding: 30px 22px; }
}

/* ============================================================
   RESPONSIVE — 480px (Small Mobile)
   ============================================================ */
@media (max-width: 480px) {
    .hero { height: 60vh; min-height: 340px; }
    .hero__content h1 { font-size: 1.3rem; }
    .hero__sub { font-size: 0.85rem; }
    .hero__btns .btn { width: 100%; padding: 12px 20px; font-size: 0.9rem; }
    .hero__indicators { bottom: 20px; }
    .stats__grid { gap: 14px; }
    .stats__num { font-size: 1.4rem; }
    .process-card { padding: 24px 16px; }
    .contact__form input, .contact__form textarea { padding: 11px 14px; }
    .mobile-bar__btn { padding: 10px; font-size: 0.82rem; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}