.phone-join { width: min(100%, var(--phone-content-width)); margin: 0 auto; background: #f5f6f7; }
.phone-join h1, .phone-join h2, .phone-join h3, .phone-join p { margin: 0; }

.phone-join-hero { position: relative; overflow: hidden; padding: clamp(88px, 25vw, 120px) clamp(16px, 4vw, 30px) clamp(32px, 8vw, 54px); text-align: center; }
.phone-join-hero::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(13, 153, 255, .1) 0%, rgba(244, 244, 255, .96) 100%); pointer-events: none; }
.phone-join-hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.phone-join-hero h1,
.phone-join-hero p { position: relative; z-index: 2; }
.phone-join-hero h1 { color: #1d2233; font-size: clamp(24px, 5.6vw, 32px); font-weight: 700; line-height: 1.35; }
.phone-join-hero-title-blue { color: #0068eb; }
.phone-join-hero-subtitle { margin-top: clamp(10px, 2.5vw, 16px); color: #1d2233; font-size: clamp(14px, 4.11vw, 20px); line-height: 1.5; padding: 10px 0; }
.phone-join-hero-copy { margin-top: clamp(20px, 5vw, 36px); color: rgba(29, 34, 51, .75); font-size: clamp(13px, 3.2vw, 15px); line-height: 1.65; }
.phone-join-hero-phone { margin-top: clamp(16px, 3.5vw, 24px); color: var(--phone-blue); font-size: clamp(14px, 4.11vw, 20px); font-weight: 500; line-height: 1.4; padding-top: 20px;}

.phone-join-support { padding: clamp(20px, 6.2vw, 40px) clamp(16px, 4vw, 30px); background: #ffffff; }
.phone-join-support h2 { color: #1d2233; font-size: clamp(20px, 4.8vw, 28px); font-weight: 500; line-height: 1.35; text-align: center; }
.phone-join-support-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(10px, 2.5vw, 16px); margin-top: clamp(24px, 5.5vw, 40px); }
.phone-join-support-card { display: flex; flex-direction: column; gap: clamp(8px, 2vw, 14px); padding: clamp(14px, 3.5vw, 24px);  border-radius: clamp(8px, 2vw, 12px); background: #0d99ff1a; }
.phone-join-support-card h3 { color: #1d2233; font-size: clamp(14px, 4.44vw, 20px); font-weight: 500; line-height: 1.35; text-align: center; }
.phone-join-support-card p { color: #697181; font-size: clamp(12px, 3.34vw, 14px); line-height: 1.6; }

.phone-join-form-section { padding: clamp(24px, 8.2vw, 48px) clamp(16px, 4vw, 30px); background: #f5f6f7; }
.phone-join-form-card { padding: clamp(24px, 5.5vw, 40px) clamp(16px, 4vw, 30px); border-radius: clamp(12px, 2.5vw, 16px); background: #ffffff; box-shadow: 0 2px 12px rgba(29, 34, 51, .04); }
.phone-join-form-card h2 { color: #0068eb; font-size: clamp(16px, 5.13vw, 24px); font-weight: 700; line-height: 1.35; text-align: center; }

.phone-join-form { margin-top: clamp(24px, 5.5vw, 40px); }
.phone-join-form-group { display: flex; flex-direction: column; gap: clamp(14px, 3.5vw, 20px); }
.phone-join-field { display: flex; flex-direction: column; gap: 6px; }
.phone-join-field label { display: flex; justify-content: space-between; align-items: center; color: #1d2233; font-size: clamp(13px, 3.2vw, 15px); line-height: 1.4; }
.phone-join-field input[type="text"],
.phone-join-field input[type="email"],
.phone-join-field textarea { width: 100%; border: 1px solid #d9d9d9; border-radius: 6px; background: #ffffff; color: #1d2233; font-family: inherit; font-size: clamp(14px, 3.2vw, 15px); line-height: 1.5; outline: none; transition: border-color .2s ease; box-sizing: border-box; }
.phone-join-field input[type="text"],
.phone-join-field input[type="email"] { height: clamp(40px, 10vw, 48px); padding: 0 clamp(10px, 2.5vw, 14px); }
.phone-join-field textarea { min-height: clamp(80px, 20vw, 100px); padding: clamp(8px, 2vw, 12px) clamp(10px, 2.5vw, 14px); resize: vertical; }
.phone-join-field input[type="text"]:focus,
.phone-join-field input[type="email"]:focus,
.phone-join-field textarea:focus { border-color: var(--phone-blue); }
.phone-join-field input[type="text"]:focus-visible,
.phone-join-field input[type="email"]:focus-visible,
.phone-join-field textarea:focus-visible,
#citypicker-trigger:focus-visible { outline: none; }
.phone-join-field input::-webkit-input-placeholder,
.phone-join-field textarea::-webkit-input-placeholder { color: #999999; font-size: clamp(13px, 3.2vw, 14px); }

.phone-join-distpicker-hidden { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }

#citypicker-trigger { cursor: pointer; width: 100%; border: 1px solid #d9d9d9; border-radius: 6px; background: #ffffff; color: #1d2233; font-family: inherit; font-size: clamp(14px, 3.2vw, 15px); line-height: 1.5; outline: none; transition: border-color .2s ease; box-sizing: border-box; height: clamp(40px, 10vw, 48px); padding: 0 clamp(10px, 2.5vw, 14px); }
#citypicker-trigger:focus { border-color: var(--phone-blue); }
#citypicker-trigger::-webkit-input-placeholder { color: #999999; font-size: clamp(13px, 3.2vw, 14px); }

.phone-join-city-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, .5); z-index: 1000; opacity: 0; pointer-events: none; transition: opacity .3s ease; }
.phone-join-city-overlay.is-open { opacity: 1; pointer-events: auto; }

.phone-join-city-sheet { position: fixed; left: 0; right: 0; bottom: 0; z-index: 1001; max-height: 70vh; background: #ffffff; border-radius: 16px 16px 0 0; transform: translateY(100%); transition: transform .35s cubic-bezier(.4, 0, .2, 1); display: flex; flex-direction: column; }
.phone-join-city-sheet.is-open { transform: translateY(0); }

.phone-join-city-sheet-header { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid #e8e9ee; flex-shrink: 0; }
.phone-join-city-sheet-back { border: 0; background: transparent; color: var(--phone-blue); font-size: 14px; cursor: pointer; padding: 0; }
.phone-join-city-sheet-title { color: #1d2233; font-size: 16px; font-weight: 600; }
.phone-join-city-sheet-close { border: 0; background: transparent; color: #999; font-size: 18px; cursor: pointer; padding: 0 4px; line-height: 1; }

.phone-join-city-sheet-body { flex: 1; overflow-y: auto; -webkit-overflow-scrolling: touch; padding: 8px 0; }
.phone-join-city-sheet-body button { display: block; width: 100%; padding: clamp(10px, 3vw, 14px) 16px; border: 0; border-radius: 0; background: #ffffff; color: #1d2233; font-family: inherit; font-size: clamp(14px, 3.467vw, 16px); line-height: 1.5; text-align: left; cursor: pointer; transition: background .15s ease; }
.phone-join-city-sheet-body button:active { background: #f0f1f3; }
.phone-join-city-sheet-body button.is-selected { color: var(--phone-blue); font-weight: 500; background: rgba(13, 153, 255, .06); }

.phone-join-error { color: #ff4d4f; font-size: 12px; line-height: 1.4; white-space: nowrap; margin-left: 8px; flex-shrink: 0; }

.phone-join-form-actions { display: flex; gap: clamp(10px, 2.5vw, 16px); margin-top: clamp(20px, 5vw, 32px); }
.phone-join-form-actions input { flex: 1; display: inline-flex; height: clamp(42px, 10.5vw, 48px); align-items: center; justify-content: center; border-radius: 6px; font-family: inherit; font-size: clamp(14px, 3.467vw, 16px); line-height: 1.4; cursor: pointer; transition: color .2s ease, border-color .2s ease, background-color .2s ease; }
.phone-join-form-actions input[type="reset"] { border: 1px solid #d9d9d9; background: #ffffff; color: #1d2233; }
.phone-join-form-actions input[type="reset"]:active { background: #f0f1f3; }
.phone-join-form-actions input[type="submit"] { border: 1px solid var(--phone-blue); background: var(--phone-blue); color: #ffffff; font-weight: 500; }
.phone-join-form-actions input[type="submit"]:active { border-color: #007ecc; background: #007ecc; }
.phone-join-form-actions input[type="submit"]:disabled { opacity: .6; cursor: not-allowed; }

.phone-join-faq { padding: clamp(36px, 9vw, 60px) clamp(16px, 4vw, 30px); background: #f5f6f7; }
.phone-join-faq-container { max-width: 680px; margin: 0 auto; }
.phone-join-faq h2 { color: #1d2233; font-size: clamp(20px, 4.8vw, 28px); font-weight: 500; line-height: 1.35; text-align: center; }
.phone-join-faq-list { display: flex; flex-direction: column; margin-top: clamp(24px, 5.5vw, 40px); }
.phone-join-faq-item { border-bottom: 1px solid #e8e9ee; }
.phone-join-faq-item button { display: flex; width: 100%; align-items: center; padding: clamp(14px, 3.5vw, 20px) 0; border: 0; background: transparent; color: #1d2233; font-family: inherit; font-size: clamp(14px, 3.467vw, 16px); line-height: 1.5; text-align: left; cursor: pointer; }
.phone-join-faq-item p { display: none; padding-bottom: clamp(12px, 3vw, 20px); color: rgba(29, 34, 51, .7); font-size: clamp(13px, 3.2vw, 14px); line-height: 1.6; }
.phone-join-faq-item.is-open p { display: block; }

@media (max-width: 359px) {
    .phone-join-support-grid { grid-template-columns: 1fr; }
}